Related ArticlesKinetic, Raman, NMR, and site-directed mutagenesis studies of the Pseudomonas sp. strain CBS3 4-hydroxybenzoyl-CoA thioesterase active site.
Biochemistry. 2002 Sep 17;41(37):11152-60
Authors: Zhuang Z, Song F, Zhang W, Taylor K, Archambault A, Dunaway-Mariano D, Dong J, Carey PR
4-Hydroxybenzoyl-coenzyme A (4-HBA-CoA) thioesterase catalyzes the hydrolysis of 4-HBA-CoA to 4-hydroxybenzoate and CoA. X-ray crystallographic analysis of the liganded enzyme has shown that the benzoyl thioester and pantetheine moieties of the substrate ligand are bound in a narrow crevice while the nucleotide moiety rests on the protein surface (Thoden, J. B., Holden, H. M., Zhuang, Z. and Dunaway-Mariano, D. (2002) X-ray Crystallographic Analyses of Inhibitor and Substrate Complexes of Wild-type and Mutant 4-Hydroxybenzoyl-CoA Thioesterase, J. Biol. Chem., in press). Asp17 is positioned in the crevice, close to the substrate thioester C=O, which in turn interacts with the positive pole of an alpha-helix macrodipole. In this paper we report the results from spectral, mutagenesis, and kinetic studies which show (1) that substrate activation involves restricted thioester C=O conformational freedom and a modest enhancement of C=O bond polarization, (2) that the nucleotide unit of the substrate is bound through interaction with the protein surface, and (3) that Asp17 contributes a rate factor of 10(4), consistent with its proposed role of general base or nucleophile.
A systematic mutagenesis-driven strategy for site-resolved NMR studies of supramolecular assemblies.
A systematic mutagenesis-driven strategy for site-resolved NMR studies of supramolecular assemblies.
A systematic mutagenesis-driven strategy for site-resolved NMR studies of supramolecular assemblies.
J Biomol NMR. 2011 May 29;
Authors: Amero C, Asunción Durá M, Noirclerc-Savoye M, Perollier A, Gallet B, Plevin MJ, Vernet T, Franzetti B, Boisbouvier J
Obtaining sequence-specific assignments remains a major bottleneck in solution NMR investigations of supramolecular structure, dynamics and interactions. Here we demonstrate that resonance...
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[NMR paper] Site-directed 13C solid-state NMR studies on membrane proteins: strategy and goals to
Site-directed 13C solid-state NMR studies on membrane proteins: strategy and goals toward revealing conformation and dynamics as illustrated for bacteriorhodopsin labeled with amino acid residues.
Related Articles Site-directed 13C solid-state NMR studies on membrane proteins: strategy and goals toward revealing conformation and dynamics as illustrated for bacteriorhodopsin labeled with amino acid residues.
Magn Reson Chem. 2004 Feb;42(2):218-30
Authors: Saitô H, Mikami J, Yamaguchi S, Tanio M, Kira A, Arakawa T, Yamamoto K, Tuzi S
We have so...
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[NMR paper] Structural consequences of site-directed mutagenesis in flexible protein domains: NMR
Structural consequences of site-directed mutagenesis in flexible protein domains: NMR characterization of the L(55,56)S mutant of RhoGDI.
Related Articles Structural consequences of site-directed mutagenesis in flexible protein domains: NMR characterization of the L(55,56)S mutant of RhoGDI.
Eur J Biochem. 2001 Apr;268(8):2253-60
Authors: Golovanov AP, Hawkins D, Barsukov I, Badii R, Bokoch GM, Lian LY, Roberts GC
The guanine dissociation inhibitor RhoGDI consists of a folded C-terminal domain and a highly flexible N-terminal region, both of...
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11-19-2010 08:32 PM
[NMR paper] The binding site for UCH-L3 on ubiquitin: mutagenesis and NMR studies on the complex
The binding site for UCH-L3 on ubiquitin: mutagenesis and NMR studies on the complex between ubiquitin and UCH-L3.
Related Articles The binding site for UCH-L3 on ubiquitin: mutagenesis and NMR studies on the complex between ubiquitin and UCH-L3.
J Mol Biol. 1999 Sep 3;291(5):1067-77
Authors: Wilkinson KD, Laleli-Sahin E, Urbauer J, Larsen CN, Shih GH, Haas AL, Walsh ST, Wand AJ
The ubiquitin fold is a versatile and widely used targeting signal that is added post-translationally to a variety of proteins. Covalent attachment of one or more...
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11-18-2010 08:31 PM
[NMR paper] Heparin binding to platelet factor-4. An NMR and site-directed mutagenesis study: arg
Heparin binding to platelet factor-4. An NMR and site-directed mutagenesis study: arginine residues are crucial for binding.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Heparin binding to platelet factor-4. An NMR and site-directed mutagenesis study: arginine residues are crucial for binding.
Biochem J. 1995 Dec 1;312 ( Pt 2):357-65
Authors: Mayo KH, Ilyina E, Roongta V, Dundas M, Joseph J, Lai CK, Maione T, Daly TJ
Native platelet factor-4 (PF4) is an...
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[NMR paper] Site-directed mutagenesis, fluorescence, and two-dimensional NMR studies on microenvi
Site-directed mutagenesis, fluorescence, and two-dimensional NMR studies on microenvironments of effector region aromatic residues of human c-Ha-Ras protein.
Related Articles Site-directed mutagenesis, fluorescence, and two-dimensional NMR studies on microenvironments of effector region aromatic residues of human c-Ha-Ras protein.
Biochemistry. 1994 Jan 11;33(1):65-73
Authors: Yamasaki K, Shirouzu M, Muto Y, Fujita-Yoshigaki J, Koide H, Ito Y, Kawai G, Hattori S, Yokoyama S, Nishimura S
The Tyr residues in positions 32 and 40 of human c-Ha-Ras...
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08-22-2010 03:33 AM
[NMR paper] Site-directed mutagenesis, fluorescence, and two-dimensional NMR studies on microenvi
Site-directed mutagenesis, fluorescence, and two-dimensional NMR studies on microenvironments of effector region aromatic residues of human c-Ha-Ras protein.
Related Articles Site-directed mutagenesis, fluorescence, and two-dimensional NMR studies on microenvironments of effector region aromatic residues of human c-Ha-Ras protein.
Biochemistry. 1994 Jan 11;33(1):65-73
Authors: Yamasaki K, Shirouzu M, Muto Y, Fujita-Yoshigaki J, Koide H, Ito Y, Kawai G, Hattori S, Yokoyama S, Nishimura S
The Tyr residues in positions 32 and 40 of human c-Ha-Ras...
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08-22-2010 03:33 AM
[NMR paper] Structural changes caused by site-directed mutagenesis of tyrosine-98 in Desulfovibri
Structural changes caused by site-directed mutagenesis of tyrosine-98 in Desulfovibrio vulgaris flavodoxin delineated by 1H and 15N NMR spectroscopy: implications for redox potential modulation.
Related Articles Structural changes caused by site-directed mutagenesis of tyrosine-98 in Desulfovibrio vulgaris flavodoxin delineated by 1H and 15N NMR spectroscopy: implications for redox potential modulation.
Biochemistry. 1994 Dec 27;33(51):15298-308
Authors: Stockman BJ, Richardson TE, Swenson RP
Flavodoxins mediate electron transfer at low redox...