Feedback inhibition of homoserine dehydrogenase and threonine deaminase in the genusBifidobacterium
Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1986 |
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| Umfang: |
6 |
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| Reproduktion: |
Springer Online Journal Archives 1860-2002 |
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| Übergeordnetes Werk: |
in: Current microbiology - 1981, 13(1986) vom: Jan., Seite 33-38 |
| Übergeordnetes Werk: |
volume:13 ; year:1986 ; month:01 ; pages:33-38 ; extent:6 |
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| 520 | |a Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. | ||
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(DE-627)NLEJ207293929 DE-627 ger DE-627 rakwb eng Feedback inhibition of homoserine dehydrogenase and threonine deaminase in the genusBifidobacterium 1986 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. Springer Online Journal Archives 1860-2002 Selli, Annarosa oth Crociani, Franca oth Matteuzzi, Diego oth Crisetig, Giorgio oth in Current microbiology 1981 13(1986) vom: Jan., Seite 33-38 (DE-627)NLEJ188990542 (DE-600)1458987-4 1432-0991 nnns volume:13 year:1986 month:01 pages:33-38 extent:6 http://dx.doi.org/10.1007/BF01568156 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1986 1 33-38 6 |
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(DE-627)NLEJ207293929 DE-627 ger DE-627 rakwb eng Feedback inhibition of homoserine dehydrogenase and threonine deaminase in the genusBifidobacterium 1986 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. Springer Online Journal Archives 1860-2002 Selli, Annarosa oth Crociani, Franca oth Matteuzzi, Diego oth Crisetig, Giorgio oth in Current microbiology 1981 13(1986) vom: Jan., Seite 33-38 (DE-627)NLEJ188990542 (DE-600)1458987-4 1432-0991 nnns volume:13 year:1986 month:01 pages:33-38 extent:6 http://dx.doi.org/10.1007/BF01568156 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1986 1 33-38 6 |
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(DE-627)NLEJ207293929 DE-627 ger DE-627 rakwb eng Feedback inhibition of homoserine dehydrogenase and threonine deaminase in the genusBifidobacterium 1986 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. Springer Online Journal Archives 1860-2002 Selli, Annarosa oth Crociani, Franca oth Matteuzzi, Diego oth Crisetig, Giorgio oth in Current microbiology 1981 13(1986) vom: Jan., Seite 33-38 (DE-627)NLEJ188990542 (DE-600)1458987-4 1432-0991 nnns volume:13 year:1986 month:01 pages:33-38 extent:6 http://dx.doi.org/10.1007/BF01568156 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1986 1 33-38 6 |
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(DE-627)NLEJ207293929 DE-627 ger DE-627 rakwb eng Feedback inhibition of homoserine dehydrogenase and threonine deaminase in the genusBifidobacterium 1986 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. Springer Online Journal Archives 1860-2002 Selli, Annarosa oth Crociani, Franca oth Matteuzzi, Diego oth Crisetig, Giorgio oth in Current microbiology 1981 13(1986) vom: Jan., Seite 33-38 (DE-627)NLEJ188990542 (DE-600)1458987-4 1432-0991 nnns volume:13 year:1986 month:01 pages:33-38 extent:6 http://dx.doi.org/10.1007/BF01568156 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1986 1 33-38 6 |
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(DE-627)NLEJ207293929 DE-627 ger DE-627 rakwb eng Feedback inhibition of homoserine dehydrogenase and threonine deaminase in the genusBifidobacterium 1986 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. Springer Online Journal Archives 1860-2002 Selli, Annarosa oth Crociani, Franca oth Matteuzzi, Diego oth Crisetig, Giorgio oth in Current microbiology 1981 13(1986) vom: Jan., Seite 33-38 (DE-627)NLEJ188990542 (DE-600)1458987-4 1432-0991 nnns volume:13 year:1986 month:01 pages:33-38 extent:6 http://dx.doi.org/10.1007/BF01568156 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1986 1 33-38 6 |
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Feedback inhibition of homoserine dehydrogenase and threonine deaminase in the genusBifidobacterium |
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Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. |
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Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. |
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Abstract Feedback inhibition of crude and purified extracts of homoserine dehydrogenase and threonine deaminase activities in the genusBifidobacterium was studied. Homoserine dehydrogenase was partially or completely inhibited byl-threonine, and a marked inhibitory effect byl-isoleucine on threonine deaminase was observed. In the speciesBifidobacterium cuniculi high levels ofl-valine reversed the inhibitory effect ofl-isoleucine. The α-aminobutyric acid-resistant mutant Ru 326/106 of the speciesB. ruminale, overproducer ofl-isoleucine, had a derepressed homoserine dehydrogenase and a lesser feedback inhibition byl-threonine. Homoserine dehydrogenase appeared to be in bifids specifically NAD dependent. The regulatory mechanisms of aspartate family amino acid biosynthesis in bifidobacteria was discussed. |
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