Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes.

Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management...
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Autor*in:	Masako Ogura [verfasserIn] J Christian Perez [verfasserIn] Peer R E Mittl [verfasserIn] Hae-Kyung Lee [verfasserIn] Geidrius Dailide [verfasserIn] Shumin Tan [verfasserIn] Yoshiyuki Ito [verfasserIn] Ousman Secka [verfasserIn] Daiva Dailidiene [verfasserIn] Kalyani Putty [verfasserIn] Douglas E Berg [verfasserIn] Awdhesh Kalia [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2007

Übergeordnetes Werk:	In: PLoS Computational Biology - Public Library of Science (PLoS), 2005, 3(2007), 8, p e151
Übergeordnetes Werk:	volume:3 ; year:2007 ; number:8, p e151

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.1371/journal.pcbi.0030151

Katalog-ID:	DOAJ01736521X

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520			\|a Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations.
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700	0		\|a Peer R E Mittl \|e verfasserin \|4 aut
700	0		\|a Hae-Kyung Lee \|e verfasserin \|4 aut
700	0		\|a Geidrius Dailide \|e verfasserin \|4 aut
700	0		\|a Shumin Tan \|e verfasserin \|4 aut
700	0		\|a Yoshiyuki Ito \|e verfasserin \|4 aut
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700	0		\|a Daiva Dailidiene \|e verfasserin \|4 aut
700	0		\|a Kalyani Putty \|e verfasserin \|4 aut
700	0		\|a Douglas E Berg \|e verfasserin \|4 aut
700	0		\|a Awdhesh Kalia \|e verfasserin \|4 aut
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912			\|a GBV_ILN_4335
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allfields	10.1371/journal.pcbi.0030151 doi (DE-627)DOAJ01736521X (DE-599)DOAJb34240ffb4d84b84b9b72b07bc1cb3ad DE-627 ger DE-627 rakwb eng QH301-705.5 Masako Ogura verfasserin aut Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes. 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations. Biology (General) J Christian Perez verfasserin aut Peer R E Mittl verfasserin aut Hae-Kyung Lee verfasserin aut Geidrius Dailide verfasserin aut Shumin Tan verfasserin aut Yoshiyuki Ito verfasserin aut Ousman Secka verfasserin aut Daiva Dailidiene verfasserin aut Kalyani Putty verfasserin aut Douglas E Berg verfasserin aut Awdhesh Kalia verfasserin aut In PLoS Computational Biology Public Library of Science (PLoS), 2005 3(2007), 8, p e151 (DE-627)491436017 (DE-600)2193340-6 15537358 nnns volume:3 year:2007 number:8, p e151 https://doi.org/10.1371/journal.pcbi.0030151 kostenfrei https://doaj.org/article/b34240ffb4d84b84b9b72b07bc1cb3ad kostenfrei http://europepmc.org/articles/PMC1941758?pdf=render kostenfrei https://doaj.org/toc/1553-734X Journal toc kostenfrei https://doaj.org/toc/1553-7358 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 3 2007 8, p e151
spelling	10.1371/journal.pcbi.0030151 doi (DE-627)DOAJ01736521X (DE-599)DOAJb34240ffb4d84b84b9b72b07bc1cb3ad DE-627 ger DE-627 rakwb eng QH301-705.5 Masako Ogura verfasserin aut Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes. 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations. Biology (General) J Christian Perez verfasserin aut Peer R E Mittl verfasserin aut Hae-Kyung Lee verfasserin aut Geidrius Dailide verfasserin aut Shumin Tan verfasserin aut Yoshiyuki Ito verfasserin aut Ousman Secka verfasserin aut Daiva Dailidiene verfasserin aut Kalyani Putty verfasserin aut Douglas E Berg verfasserin aut Awdhesh Kalia verfasserin aut In PLoS Computational Biology Public Library of Science (PLoS), 2005 3(2007), 8, p e151 (DE-627)491436017 (DE-600)2193340-6 15537358 nnns volume:3 year:2007 number:8, p e151 https://doi.org/10.1371/journal.pcbi.0030151 kostenfrei https://doaj.org/article/b34240ffb4d84b84b9b72b07bc1cb3ad kostenfrei http://europepmc.org/articles/PMC1941758?pdf=render kostenfrei https://doaj.org/toc/1553-734X Journal toc kostenfrei https://doaj.org/toc/1553-7358 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 3 2007 8, p e151
allfields_unstemmed	10.1371/journal.pcbi.0030151 doi (DE-627)DOAJ01736521X (DE-599)DOAJb34240ffb4d84b84b9b72b07bc1cb3ad DE-627 ger DE-627 rakwb eng QH301-705.5 Masako Ogura verfasserin aut Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes. 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations. Biology (General) J Christian Perez verfasserin aut Peer R E Mittl verfasserin aut Hae-Kyung Lee verfasserin aut Geidrius Dailide verfasserin aut Shumin Tan verfasserin aut Yoshiyuki Ito verfasserin aut Ousman Secka verfasserin aut Daiva Dailidiene verfasserin aut Kalyani Putty verfasserin aut Douglas E Berg verfasserin aut Awdhesh Kalia verfasserin aut In PLoS Computational Biology Public Library of Science (PLoS), 2005 3(2007), 8, p e151 (DE-627)491436017 (DE-600)2193340-6 15537358 nnns volume:3 year:2007 number:8, p e151 https://doi.org/10.1371/journal.pcbi.0030151 kostenfrei https://doaj.org/article/b34240ffb4d84b84b9b72b07bc1cb3ad kostenfrei http://europepmc.org/articles/PMC1941758?pdf=render kostenfrei https://doaj.org/toc/1553-734X Journal toc kostenfrei https://doaj.org/toc/1553-7358 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 3 2007 8, p e151
allfieldsGer	10.1371/journal.pcbi.0030151 doi (DE-627)DOAJ01736521X (DE-599)DOAJb34240ffb4d84b84b9b72b07bc1cb3ad DE-627 ger DE-627 rakwb eng QH301-705.5 Masako Ogura verfasserin aut Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes. 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations. Biology (General) J Christian Perez verfasserin aut Peer R E Mittl verfasserin aut Hae-Kyung Lee verfasserin aut Geidrius Dailide verfasserin aut Shumin Tan verfasserin aut Yoshiyuki Ito verfasserin aut Ousman Secka verfasserin aut Daiva Dailidiene verfasserin aut Kalyani Putty verfasserin aut Douglas E Berg verfasserin aut Awdhesh Kalia verfasserin aut In PLoS Computational Biology Public Library of Science (PLoS), 2005 3(2007), 8, p e151 (DE-627)491436017 (DE-600)2193340-6 15537358 nnns volume:3 year:2007 number:8, p e151 https://doi.org/10.1371/journal.pcbi.0030151 kostenfrei https://doaj.org/article/b34240ffb4d84b84b9b72b07bc1cb3ad kostenfrei http://europepmc.org/articles/PMC1941758?pdf=render kostenfrei https://doaj.org/toc/1553-734X Journal toc kostenfrei https://doaj.org/toc/1553-7358 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 3 2007 8, p e151
allfieldsSound	10.1371/journal.pcbi.0030151 doi (DE-627)DOAJ01736521X (DE-599)DOAJb34240ffb4d84b84b9b72b07bc1cb3ad DE-627 ger DE-627 rakwb eng QH301-705.5 Masako Ogura verfasserin aut Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes. 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations. Biology (General) J Christian Perez verfasserin aut Peer R E Mittl verfasserin aut Hae-Kyung Lee verfasserin aut Geidrius Dailide verfasserin aut Shumin Tan verfasserin aut Yoshiyuki Ito verfasserin aut Ousman Secka verfasserin aut Daiva Dailidiene verfasserin aut Kalyani Putty verfasserin aut Douglas E Berg verfasserin aut Awdhesh Kalia verfasserin aut In PLoS Computational Biology Public Library of Science (PLoS), 2005 3(2007), 8, p e151 (DE-627)491436017 (DE-600)2193340-6 15537358 nnns volume:3 year:2007 number:8, p e151 https://doi.org/10.1371/journal.pcbi.0030151 kostenfrei https://doaj.org/article/b34240ffb4d84b84b9b72b07bc1cb3ad kostenfrei http://europepmc.org/articles/PMC1941758?pdf=render kostenfrei https://doaj.org/toc/1553-734X Journal toc kostenfrei https://doaj.org/toc/1553-7358 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 3 2007 8, p e151
language	English
source	In PLoS Computational Biology 3(2007), 8, p e151 volume:3 year:2007 number:8, p e151
sourceStr	In PLoS Computational Biology 3(2007), 8, p e151 volume:3 year:2007 number:8, p e151
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Biology (General)
isfreeaccess_bool	true
container_title	PLoS Computational Biology
authorswithroles_txt_mv	Masako Ogura @@aut@@ J Christian Perez @@aut@@ Peer R E Mittl @@aut@@ Hae-Kyung Lee @@aut@@ Geidrius Dailide @@aut@@ Shumin Tan @@aut@@ Yoshiyuki Ito @@aut@@ Ousman Secka @@aut@@ Daiva Dailidiene @@aut@@ Kalyani Putty @@aut@@ Douglas E Berg @@aut@@ Awdhesh Kalia @@aut@@
publishDateDaySort_date	2007-01-01T00:00:00Z
hierarchy_top_id	491436017
id	DOAJ01736521X
language_de	englisch
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callnumber-first	Q - Science
author	Masako Ogura
spellingShingle	Masako Ogura misc QH301-705.5 misc Biology (General) Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes.
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topic_title	QH301-705.5 Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes
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title	Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes.
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title_full	Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes
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author_browse	Masako Ogura J Christian Perez Peer R E Mittl Hae-Kyung Lee Geidrius Dailide Shumin Tan Yoshiyuki Ito Ousman Secka Daiva Dailidiene Kalyani Putty Douglas E Berg Awdhesh Kalia
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title_sort	helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic sel1-like genes
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title_auth	Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes.
abstract	Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations.
abstractGer	Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations.
abstract_unstemmed	Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to establish persistent infection despite host inflammatory responses likely involves active management of host defenses using bacterial proteins that may themselves be targets for adaptive evolution. Sequenced H. pylori genomes encode a family of eight or nine secreted proteins containing repeat motifs that are characteristic of the eukaryotic Sel1 regulatory protein, whereas the related Campylobacter and Wolinella genomes each contain only one or two such "Sel1-like repeat" (SLR) genes ("slr genes"). Signatures of positive selection (ratio of nonsynonymous to synonymous mutations, dN/dS = omega < 1) were evident in the evolutionary history of H. pylori slr gene family expansion. Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. Characterization of such local adaptations should help elucidate how H. pylori manages persistent infection, and potentially lead to interventions tailored to diverse human populations.
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title_short	Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes.
url	https://doi.org/10.1371/journal.pcbi.0030151 https://doaj.org/article/b34240ffb4d84b84b9b72b07bc1cb3ad http://europepmc.org/articles/PMC1941758?pdf=render https://doaj.org/toc/1553-734X https://doaj.org/toc/1553-7358
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Sequence analysis of six of these slr genes (hp0160, hp0211, hp0235, hp0519, hp0628, and hp1117) from representative East Asian, European, and African H. pylori strains revealed that all but hp0628 had undergone positive selection, with different amino acids often selected in different regions. Most striking was a divergence of Japanese and Korean alleles of hp0519, with Japanese alleles having undergone particularly strong positive selection (omegaJ < 25), whereas alleles of other genes from these populations were intermingled. Homology-based structural modeling localized most residues under positive selection to SLR protein surfaces. Rapid evolution of certain slr genes in specific H. pylori lineages suggests a model of adaptive change driven by selection for fine-tuning of host responses, and facilitated by geographic isolation. 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Helicobacter pylori evolution: lineage- specific adaptations in homologs of eukaryotic Sel1-like genes.

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