Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA

Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise me...
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Autor*in:	Yang, Liang [verfasserIn] Long, Qi Liu, Jinglei Tang, Haite Li, Yuxing Bao, Feixiang Qin, Dajiang Pei, Duanqing Liu, Xingguo

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2015

Schlagwörter:	Tfam Rho0 Photoactivation Mfn1 Mfn2 Nucleoids

Anmerkung:	© Springer Basel 2015

Übergeordnetes Werk:	Enthalten in: Cellular and molecular life sciences - Cham (ZG) : Springer International Publishing AG, 1997, 72(2015), 13 vom: 24. Feb., Seite 2585-2598
Übergeordnetes Werk:	volume:72 ; year:2015 ; number:13 ; day:24 ; month:02 ; pages:2585-2598

Links:	Volltext

DOI / URN:	10.1007/s00018-015-1863-9

Katalog-ID:	SPR000168424

Internformat


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245	1	0	\|a Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA
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520			\|a Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’.
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700	1		\|a Long, Qi \|4 aut
700	1		\|a Liu, Jinglei \|4 aut
700	1		\|a Tang, Haite \|4 aut
700	1		\|a Li, Yuxing \|4 aut
700	1		\|a Bao, Feixiang \|4 aut
700	1		\|a Qin, Dajiang \|4 aut
700	1		\|a Pei, Duanqing \|4 aut
700	1		\|a Liu, Xingguo \|4 aut
773	0	8	\|i Enthalten in \|t Cellular and molecular life sciences \|d Cham (ZG) : Springer International Publishing AG, 1997 \|g 72(2015), 13 vom: 24. Feb., Seite 2585-2598 \|w (DE-627)253390524 \|w (DE-600)1458497-9 \|x 1420-9071 \|7 nnns
773	1	8	\|g volume:72 \|g year:2015 \|g number:13 \|g day:24 \|g month:02 \|g pages:2585-2598
856	4	0	\|u https://dx.doi.org/10.1007/s00018-015-1863-9 \|z lizenzpflichtig \|3 Volltext
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912			\|a GBV_ILN_24
912			\|a GBV_ILN_31
912			\|a GBV_ILN_32
912			\|a GBV_ILN_39
912			\|a GBV_ILN_40
912			\|a GBV_ILN_60
912			\|a GBV_ILN_62
912			\|a GBV_ILN_63
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
912			\|a GBV_ILN_74
912			\|a GBV_ILN_90
912			\|a GBV_ILN_95
912			\|a GBV_ILN_100
912			\|a GBV_ILN_101
912			\|a GBV_ILN_105
912			\|a GBV_ILN_110
912			\|a GBV_ILN_120
912			\|a GBV_ILN_138
912			\|a GBV_ILN_150
912			\|a GBV_ILN_151
912			\|a GBV_ILN_152
912			\|a GBV_ILN_161
912			\|a GBV_ILN_165
912			\|a GBV_ILN_170
912			\|a GBV_ILN_171
912			\|a GBV_ILN_187
912			\|a GBV_ILN_213
912			\|a GBV_ILN_224
912			\|a GBV_ILN_230
912			\|a GBV_ILN_250
912			\|a GBV_ILN_267
912			\|a GBV_ILN_281
912			\|a GBV_ILN_285
912			\|a GBV_ILN_293
912			\|a GBV_ILN_370
912			\|a GBV_ILN_602
912			\|a GBV_ILN_636
912			\|a GBV_ILN_702
912			\|a GBV_ILN_2001
912			\|a GBV_ILN_2003
912			\|a GBV_ILN_2004
912			\|a GBV_ILN_2005
912			\|a GBV_ILN_2006
912			\|a GBV_ILN_2007
912			\|a GBV_ILN_2008
912			\|a GBV_ILN_2009
912			\|a GBV_ILN_2010
912			\|a GBV_ILN_2011
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_2015
912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2026
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2031
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2037
912			\|a GBV_ILN_2038
912			\|a GBV_ILN_2039
912			\|a GBV_ILN_2044
912			\|a GBV_ILN_2048
912			\|a GBV_ILN_2049
912			\|a GBV_ILN_2050
912			\|a GBV_ILN_2055
912			\|a GBV_ILN_2057
912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2065
912			\|a GBV_ILN_2068
912			\|a GBV_ILN_2070
912			\|a GBV_ILN_2086
912			\|a GBV_ILN_2088
912			\|a GBV_ILN_2093
912			\|a GBV_ILN_2106
912			\|a GBV_ILN_2107
912			\|a GBV_ILN_2108
912			\|a GBV_ILN_2110
912			\|a GBV_ILN_2111
912			\|a GBV_ILN_2112
912			\|a GBV_ILN_2113
912			\|a GBV_ILN_2116
912			\|a GBV_ILN_2118
912			\|a GBV_ILN_2119
912			\|a GBV_ILN_2122
912			\|a GBV_ILN_2129
912			\|a GBV_ILN_2143
912			\|a GBV_ILN_2144
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912			\|a GBV_ILN_2148
912			\|a GBV_ILN_2152
912			\|a GBV_ILN_2153
912			\|a GBV_ILN_2188
912			\|a GBV_ILN_2190
912			\|a GBV_ILN_2232
912			\|a GBV_ILN_2336
912			\|a GBV_ILN_2446
912			\|a GBV_ILN_2470
912			\|a GBV_ILN_2472
912			\|a GBV_ILN_2507
912			\|a GBV_ILN_2522
912			\|a GBV_ILN_2548
912			\|a GBV_ILN_4012
912			\|a GBV_ILN_4035
912			\|a GBV_ILN_4037
912			\|a GBV_ILN_4046
912			\|a GBV_ILN_4112
912			\|a GBV_ILN_4125
912			\|a GBV_ILN_4126
912			\|a GBV_ILN_4242
912			\|a GBV_ILN_4246
912			\|a GBV_ILN_4249
912			\|a GBV_ILN_4251
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4306
912			\|a GBV_ILN_4307
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4322
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4325
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4328
912			\|a GBV_ILN_4333
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Indexfelder

author_variant	l y ly q l ql j l jl h t ht y l yl f b fb d q dq d p dp x l xl
matchkey_str	article:14209071:2015----::iohnrafsopoieaiiileaoicmlmna
hierarchy_sort_str	2015
publishDate	2015
allfields	10.1007/s00018-015-1863-9 doi (DE-627)SPR000168424 (SPR)s00018-015-1863-9-e DE-627 ger DE-627 rakwb eng Yang, Liang verfasserin aut Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Basel 2015 Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’. Tfam (dpeaa)DE-He213 Rho0 (dpeaa)DE-He213 Photoactivation (dpeaa)DE-He213 Mfn1 (dpeaa)DE-He213 Mfn2 (dpeaa)DE-He213 Nucleoids (dpeaa)DE-He213 Long, Qi aut Liu, Jinglei aut Tang, Haite aut Li, Yuxing aut Bao, Feixiang aut Qin, Dajiang aut Pei, Duanqing aut Liu, Xingguo aut Enthalten in Cellular and molecular life sciences Cham (ZG) : Springer International Publishing AG, 1997 72(2015), 13 vom: 24. Feb., Seite 2585-2598 (DE-627)253390524 (DE-600)1458497-9 1420-9071 nnns volume:72 year:2015 number:13 day:24 month:02 pages:2585-2598 https://dx.doi.org/10.1007/s00018-015-1863-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 72 2015 13 24 02 2585-2598
spelling	10.1007/s00018-015-1863-9 doi (DE-627)SPR000168424 (SPR)s00018-015-1863-9-e DE-627 ger DE-627 rakwb eng Yang, Liang verfasserin aut Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Basel 2015 Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’. Tfam (dpeaa)DE-He213 Rho0 (dpeaa)DE-He213 Photoactivation (dpeaa)DE-He213 Mfn1 (dpeaa)DE-He213 Mfn2 (dpeaa)DE-He213 Nucleoids (dpeaa)DE-He213 Long, Qi aut Liu, Jinglei aut Tang, Haite aut Li, Yuxing aut Bao, Feixiang aut Qin, Dajiang aut Pei, Duanqing aut Liu, Xingguo aut Enthalten in Cellular and molecular life sciences Cham (ZG) : Springer International Publishing AG, 1997 72(2015), 13 vom: 24. Feb., Seite 2585-2598 (DE-627)253390524 (DE-600)1458497-9 1420-9071 nnns volume:72 year:2015 number:13 day:24 month:02 pages:2585-2598 https://dx.doi.org/10.1007/s00018-015-1863-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 72 2015 13 24 02 2585-2598
allfields_unstemmed	10.1007/s00018-015-1863-9 doi (DE-627)SPR000168424 (SPR)s00018-015-1863-9-e DE-627 ger DE-627 rakwb eng Yang, Liang verfasserin aut Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Basel 2015 Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’. Tfam (dpeaa)DE-He213 Rho0 (dpeaa)DE-He213 Photoactivation (dpeaa)DE-He213 Mfn1 (dpeaa)DE-He213 Mfn2 (dpeaa)DE-He213 Nucleoids (dpeaa)DE-He213 Long, Qi aut Liu, Jinglei aut Tang, Haite aut Li, Yuxing aut Bao, Feixiang aut Qin, Dajiang aut Pei, Duanqing aut Liu, Xingguo aut Enthalten in Cellular and molecular life sciences Cham (ZG) : Springer International Publishing AG, 1997 72(2015), 13 vom: 24. Feb., Seite 2585-2598 (DE-627)253390524 (DE-600)1458497-9 1420-9071 nnns volume:72 year:2015 number:13 day:24 month:02 pages:2585-2598 https://dx.doi.org/10.1007/s00018-015-1863-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 72 2015 13 24 02 2585-2598
allfieldsGer	10.1007/s00018-015-1863-9 doi (DE-627)SPR000168424 (SPR)s00018-015-1863-9-e DE-627 ger DE-627 rakwb eng Yang, Liang verfasserin aut Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Basel 2015 Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’. Tfam (dpeaa)DE-He213 Rho0 (dpeaa)DE-He213 Photoactivation (dpeaa)DE-He213 Mfn1 (dpeaa)DE-He213 Mfn2 (dpeaa)DE-He213 Nucleoids (dpeaa)DE-He213 Long, Qi aut Liu, Jinglei aut Tang, Haite aut Li, Yuxing aut Bao, Feixiang aut Qin, Dajiang aut Pei, Duanqing aut Liu, Xingguo aut Enthalten in Cellular and molecular life sciences Cham (ZG) : Springer International Publishing AG, 1997 72(2015), 13 vom: 24. Feb., Seite 2585-2598 (DE-627)253390524 (DE-600)1458497-9 1420-9071 nnns volume:72 year:2015 number:13 day:24 month:02 pages:2585-2598 https://dx.doi.org/10.1007/s00018-015-1863-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 72 2015 13 24 02 2585-2598
allfieldsSound	10.1007/s00018-015-1863-9 doi (DE-627)SPR000168424 (SPR)s00018-015-1863-9-e DE-627 ger DE-627 rakwb eng Yang, Liang verfasserin aut Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer Basel 2015 Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’. Tfam (dpeaa)DE-He213 Rho0 (dpeaa)DE-He213 Photoactivation (dpeaa)DE-He213 Mfn1 (dpeaa)DE-He213 Mfn2 (dpeaa)DE-He213 Nucleoids (dpeaa)DE-He213 Long, Qi aut Liu, Jinglei aut Tang, Haite aut Li, Yuxing aut Bao, Feixiang aut Qin, Dajiang aut Pei, Duanqing aut Liu, Xingguo aut Enthalten in Cellular and molecular life sciences Cham (ZG) : Springer International Publishing AG, 1997 72(2015), 13 vom: 24. Feb., Seite 2585-2598 (DE-627)253390524 (DE-600)1458497-9 1420-9071 nnns volume:72 year:2015 number:13 day:24 month:02 pages:2585-2598 https://dx.doi.org/10.1007/s00018-015-1863-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 72 2015 13 24 02 2585-2598
language	English
source	Enthalten in Cellular and molecular life sciences 72(2015), 13 vom: 24. Feb., Seite 2585-2598 volume:72 year:2015 number:13 day:24 month:02 pages:2585-2598
sourceStr	Enthalten in Cellular and molecular life sciences 72(2015), 13 vom: 24. Feb., Seite 2585-2598 volume:72 year:2015 number:13 day:24 month:02 pages:2585-2598
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Tfam Rho0 Photoactivation Mfn1 Mfn2 Nucleoids
isfreeaccess_bool	false
container_title	Cellular and molecular life sciences
authorswithroles_txt_mv	Yang, Liang @@aut@@ Long, Qi @@aut@@ Liu, Jinglei @@aut@@ Tang, Haite @@aut@@ Li, Yuxing @@aut@@ Bao, Feixiang @@aut@@ Qin, Dajiang @@aut@@ Pei, Duanqing @@aut@@ Liu, Xingguo @@aut@@
publishDateDaySort_date	2015-02-24T00:00:00Z
hierarchy_top_id	253390524
id	SPR000168424
language_de	englisch
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author	Yang, Liang
spellingShingle	Yang, Liang misc Tfam misc Rho0 misc Photoactivation misc Mfn1 misc Mfn2 misc Nucleoids Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA
authorStr	Yang, Liang
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topic_title	Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA Tfam (dpeaa)DE-He213 Rho0 (dpeaa)DE-He213 Photoactivation (dpeaa)DE-He213 Mfn1 (dpeaa)DE-He213 Mfn2 (dpeaa)DE-He213 Nucleoids (dpeaa)DE-He213
topic	misc Tfam misc Rho0 misc Photoactivation misc Mfn1 misc Mfn2 misc Nucleoids
topic_unstemmed	misc Tfam misc Rho0 misc Photoactivation misc Mfn1 misc Mfn2 misc Nucleoids
topic_browse	misc Tfam misc Rho0 misc Photoactivation misc Mfn1 misc Mfn2 misc Nucleoids
format_facet	Elektronische Aufsätze Aufsätze Elektronische Ressource
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title	Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA
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title_full	Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA
author_sort	Yang, Liang
journal	Cellular and molecular life sciences
journalStr	Cellular and molecular life sciences
lang_code	eng
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container_start_page	2585
author_browse	Yang, Liang Long, Qi Liu, Jinglei Tang, Haite Li, Yuxing Bao, Feixiang Qin, Dajiang Pei, Duanqing Liu, Xingguo
container_volume	72
format_se	Elektronische Aufsätze
author-letter	Yang, Liang
doi_str_mv	10.1007/s00018-015-1863-9
title_sort	mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtdna
title_auth	Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA
abstract	Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’. © Springer Basel 2015
abstractGer	Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’. © Springer Basel 2015
abstract_unstemmed	Abstract Heteroplasmic cells, harboring both mutant and normal mitochondrial DNAs (mtDNAs), must accumulate mutations to a threshold level before respiratory activity is affected. This phenomenon has led to the hypothesis of mtDNA complementation by inter-mitochondrial content mixing. The precise mechanisms of heteroplasmic complementation are unknown, but it depends both on the mtDNA nucleoid dynamics among mitochondria as well as the mitochondrial dynamics as influenced by mtDNA. We tracked nucleoids among the mitochondria in real time to show that they are shared after complete fusion but not ‘kiss-and-run’. Employing a cell hybrid model, we further show that mtDNA-less mitochondria, which have little ATP production and extensive Opa1 proteolytic cleavage, exhibit weak fusion activity among themselves, yet remain competent in fusing with healthy mitochondria in a mitofusin- and OPA1-dependent manner, resulting in restoration of metabolic function. Depletion of mtDNA by overexpression of the matrix-targeted nuclease UL12.5 resulted in heterogeneous mitochondrial membrane potential (ΔΨm) at the organelle level in mitofusin-null cells but not in wild type. In this system, overexpression of mitofusins or application of the fusion-promoting drug M1 could partially rescue the metabolic damage caused by UL12.5. Interestingly, mtDNA transcription/translation is not required for normal mitochondria to restore metabolic function to mtDNA-less mitochondria by fusion. Thus, interplay between mtDNA and fusion capacity governs a novel ‘initial metabolic complementation’. © Springer Basel 2015
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container_issue	13
title_short	Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA
url	https://dx.doi.org/10.1007/s00018-015-1863-9
remote_bool	true
author2	Long, Qi Liu, Jinglei Tang, Haite Li, Yuxing Bao, Feixiang Qin, Dajiang Pei, Duanqing Liu, Xingguo
author2Str	Long, Qi Liu, Jinglei Tang, Haite Li, Yuxing Bao, Feixiang Qin, Dajiang Pei, Duanqing Liu, Xingguo
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doi_str	10.1007/s00018-015-1863-9
up_date	2024-07-03T14:23:27.236Z
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Mitochondrial fusion provides an ‘initial metabolic complementation’ controlled by mtDNA

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