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260 related items for PubMed ID: 20504042

  • 1. Valine 375 and phenylalanine 109 confer affinity and specificity for pyruvate as donor substrate in acetohydroxy acid synthase isozyme II from Escherichia coli.
    Steinmetz A, Vyazmensky M, Meyer D, Barak ZE, Golbik R, Chipman DM, Tittmann K.
    Biochemistry; 2010 Jun 29; 49(25):5188-99. PubMed ID: 20504042
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  • 2. Many of the functional differences between acetohydroxyacid synthase (AHAS) isozyme I and other AHASs are a result of the rapid formation and breakdown of the covalent acetolactate-thiamin diphosphate adduct in AHAS I.
    Belenky I, Steinmetz A, Vyazmensky M, Barak Z, Tittmann K, Chipman DM.
    FEBS J; 2012 Jun 29; 279(11):1967-79. PubMed ID: 22443469
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  • 3. Significant catalytic roles for Glu47 and Gln 110 in all four of the C-C bond-making and -breaking steps of the reactions of acetohydroxyacid synthase II.
    Vyazmensky M, Steinmetz A, Meyer D, Golbik R, Barak Z, Tittmann K, Chipman DM.
    Biochemistry; 2011 Apr 19; 50(15):3250-60. PubMed ID: 21370850
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  • 4. Homology modeling of the structure of bacterial acetohydroxy acid synthase and examination of the active site by site-directed mutagenesis.
    Ibdah M, Bar-Ilan A, Livnah O, Schloss JV, Barak Z, Chipman DM.
    Biochemistry; 1996 Dec 17; 35(50):16282-91. PubMed ID: 8973202
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  • 5. The carboligation reaction of acetohydroxyacid synthase II: steady-state intermediate distributions in wild type and mutants by NMR.
    Tittmann K, Vyazmensky M, Hübner G, Barak Z, Chipman DM.
    Proc Natl Acad Sci U S A; 2005 Jan 18; 102(3):553-8. PubMed ID: 15640355
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  • 6. Channeling behavior and activity models for Escherichia coli K-12 acetohydroxy acid synthases at physiological substrate levels.
    Herring PA, McKnight BL, Jackson JH.
    Biochem Biophys Res Commun; 1995 Feb 06; 207(1):48-54. PubMed ID: 7857304
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  • 7. Electron transfer in acetohydroxy acid synthase as a side reaction of catalysis. Implications for the reactivity and partitioning of the carbanion/enamine form of (alpha-hydroxyethyl)thiamin diphosphate in a "nonredox" flavoenzyme.
    Tittmann K, Schröder K, Golbik R, McCourt J, Kaplun A, Duggleby RG, Barak Z, Chipman DM, Hübner G.
    Biochemistry; 2004 Jul 13; 43(27):8652-61. PubMed ID: 15236573
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  • 8. Acetohydroxyacid synthase: a proposed structure for regulatory subunits supported by evidence from mutagenesis.
    Mendel S, Elkayam T, Sella C, Vinogradov V, Vyazmensky M, Chipman DM, Barak Z.
    J Mol Biol; 2001 Mar 16; 307(1):465-77. PubMed ID: 11243831
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  • 10. Physiological implications of the specificity of acetohydroxy acid synthase isozymes of enteric bacteria.
    Barak Z, Chipman DM, Gollop N.
    J Bacteriol; 1987 Aug 16; 169(8):3750-6. PubMed ID: 3301814
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  • 11. Monitoring the acetohydroxy acid synthase reaction and related carboligations by circular dichroism spectroscopy.
    Vinogradov M, Kaplun A, Vyazmensky M, Engel S, Golbik R, Tittmann K, Uhlemann K, Meshalkina L, Barak Z, Hübner G, Chipman DM.
    Anal Biochem; 2005 Jul 01; 342(1):126-33. PubMed ID: 15958189
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  • 12. Kinetics and mechanism of acetohydroxy acid synthase isozyme III from Escherichia coli.
    Gollop N, Damri B, Barak Z, Chipman DM.
    Biochemistry; 1989 Jul 25; 28(15):6310-7. PubMed ID: 2675968
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  • 14. Structure of the regulatory subunit of acetohydroxyacid synthase isozyme III from Escherichia coli.
    Kaplun A, Vyazmensky M, Zherdev Y, Belenky I, Slutzker A, Mendel S, Barak Z, Chipman DM, Shaanan B.
    J Mol Biol; 2006 Mar 31; 357(3):951-63. PubMed ID: 16458324
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  • 17. Role of a highly conserved proline-126 in ThDP binding of Mycobacterium tuberculosis acetohydroxyacid synthase.
    Baig IA, Gedi V, Lee SC, Koh SH, Yoon MY.
    Enzyme Microb Technol; 2013 Sep 10; 53(4):243-9. PubMed ID: 23931689
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  • 18. Substrate range of acetohydroxy acid synthase I from Escherichia coli in the stereoselective synthesis of alpha-hydroxy ketones.
    Engel S, Vyazmensky M, Berkovich D, Barak Z, Chipman DM.
    Biotechnol Bioeng; 2004 Dec 30; 88(7):825-31. PubMed ID: 15558598
    [Abstract] [Full Text] [Related]

  • 19. Structural and kinetic studies on native intermediates and an intermediate analogue in benzoylformate decarboxylase reveal a least motion mechanism with an unprecedented short-lived predecarboxylation intermediate.
    Bruning M, Berheide M, Meyer D, Golbik R, Bartunik H, Liese A, Tittmann K.
    Biochemistry; 2009 Apr 21; 48(15):3258-68. PubMed ID: 19182954
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  • 20. Interactions between large and small subunits of different acetohydroxyacid synthase isozymes of Escherichia coli.
    Vyazmensky M, Zherdev Y, Slutzker A, Belenky I, Kryukov O, Barak Z, Chipman DM.
    Biochemistry; 2009 Sep 15; 48(36):8731-7. PubMed ID: 19653643
    [Abstract] [Full Text] [Related]

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