Published in J Am Chem Soc on December 09, 2011
Experimental observation of thiamin diphosphate-bound intermediates on enzymes and mechanistic information derived from these observations. Bioorg Chem (2005) 1.21
Observation of thiamin-bound intermediates and microscopic rate constants for their interconversion on 1-deoxy-D-xylulose 5-phosphate synthase: 600-fold rate acceleration of pyruvate decarboxylation by D-glyceraldehyde-3-phosphate. J Am Chem Soc (2012) 1.10
Direct observation of ground-state lactam-lactim tautomerization using temperature-jump transient 2D IR spectroscopy. Proc Natl Acad Sci U S A (2013) 0.90
Bifunctionality of the thiamin diphosphate cofactor: assignment of tautomeric/ionization states of the 4'-aminopyrimidine ring when various intermediates occupy the active sites during the catalysis of yeast pyruvate decarboxylase. J Am Chem Soc (2012) 0.86
Observation of a stable carbene at the active site of a thiamin enzyme. Nat Chem Biol (2013) 0.82
Glyoxylate carboligase: a unique thiamin diphosphate-dependent enzyme that can cycle between the 4'-aminopyrimidinium and 1',4'-iminopyrimidine tautomeric forms in the absence of the conserved glutamate. Biochemistry (2012) 0.80
Identification of charge transfer transitions related to thiamin-bound intermediates on enzymes provides a plethora of signatures useful in mechanistic studies. Biochemistry (2014) 0.79
Catalysis in Enzymatic Decarboxylations: Comparison of Selected Cofactor-dependent and Cofactor-independent Examples. ACS Catal (2013) 0.78
Thiamin Diphosphate Activation in 1-Deoxy-d-xylulose 5-Phosphate Synthase: Insights into the Mechanism and Underlying Intermolecular Interactions. J Phys Chem B (2016) 0.75
Competence of Thiamin Diphosphate-Dependent Enzymes with 2'-Methoxythiamin Diphosphate Derived from Bacimethrin, a Naturally Occurring Thiamin Anti-vitamin. Biochemistry (2016) 0.75
Electron density reactivity indexes of the tautomeric/ionization forms of thiamin diphosphate. J Mol Model (2013) 0.75
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The 1',4'-iminopyrimidine tautomer of thiamin diphosphate is poised for catalysis in asymmetric active centers on enzymes. Proc Natl Acad Sci U S A (2006) 1.64
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The mechanism of substrate activation of pyruvate decarboxylase: a first approach. Eur J Biochem (1978) 1.53
Solid-state NMR studies of HIV-1 capsid protein assemblies. J Am Chem Soc (2010) 1.49
Elucidation of the chemistry of enzyme-bound thiamin diphosphate prior to substrate binding: defining internal equilibria among tautomeric and ionization states. Biochemistry (2007) 1.37
Sixty years of thiamin diphosphate biochemistry. Biochim Biophys Acta (1998) 1.30
Active site generated analogues of reactive intermediates in enzymic reactions. Potent inhibition of pyruvate dehydrogenase by a phosphonate analogue of pyruvate1. J Am Chem Soc (1977) 1.21
Magic angle spinning NMR experiments for structural studies of differentially enriched protein interfaces and protein assemblies. J Am Chem Soc (2008) 1.17
Solid-state and solution NMR studies of the CAP-Gly domain of mammalian dynactin and its interaction with microtubules. J Am Chem Soc (2009) 1.14
Solid state NMR: new tools for insight into enzyme function. Curr Opin Struct Biol (2007) 1.12
Electronic and nuclear magnetic resonance spectroscopic features of the 1',4'-iminopyrimidine tautomeric form of thiamin diphosphate, a novel intermediate on enzymes requiring this coenzyme. Biochemistry (2006) 1.08
Acetylphosphinate is the most potent mechanism-based substrate-like inhibitor of both the human and Escherichia coli pyruvate dehydrogenase components of the pyruvate dehydrogenase complex. Bioorg Chem (2006) 1.08
Crystal versus solution structures of enzymes: NMR spectroscopy of a crystalline serine protease. Science (1989) 1.06
X-ray and NMR crystallography in an enzyme active site: the indoline quinonoid intermediate in tryptophan synthase. J Am Chem Soc (2010) 1.05
Coupling of functional hydrogen bonds in pyridoxal-5'-phosphate-enzyme model systems observed by solid-state NMR spectroscopy. J Am Chem Soc (2007) 1.03
51V solid-state magic angle spinning NMR spectroscopy of vanadium chloroperoxidase. J Am Chem Soc (2006) 1.01
Catalytic acid-base groups in yeast pyruvate decarboxylase. 3. A steady-state kinetic model consistent with the behavior of both wild-type and variant enzymes at all relevant pH values. Biochemistry (2001) 0.98
Substrate product equilibrium on a reversible enzyme, triosephosphate isomerase. Proc Natl Acad Sci U S A (2007) 0.95
Reaction mechanisms of thiamin diphosphate enzymes: redox reactions. FEBS J (2009) 0.95
Covalently bound substrate at the regulatory site of yeast pyruvate decarboxylases triggers allosteric enzyme activation. J Biol Chem (2009) 0.92
Solid-state NMR and density functional theory studies of ionization states of thiamin. J Phys Chem B (2010) 0.90
NMR studies of the stability, protonation States, and tautomerism of (13)C- AND (15)N-labeled aldimines of the coenzyme pyridoxal 5'-phosphate in water. Biochemistry (2010) 0.89
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The protonation site of vitamin B1 as determined from natural-abundance 15N nuclear magnetic resonance spectra. J Am Chem Soc (1977) 0.85
Interdomain information transfer during substrate activation of yeast pyruvate decarboxylase: the interaction between cysteine 221 and histidine 92. Biochemistry (1998) 0.84
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The 1',4'-iminopyrimidine tautomer of thiamin diphosphate is poised for catalysis in asymmetric active centers on enzymes. Proc Natl Acad Sci U S A (2006) 1.64
Probing structure and dynamics of protein assemblies by magic angle spinning NMR spectroscopy. Acc Chem Res (2013) 1.58
Solid-state NMR studies of HIV-1 capsid protein assemblies. J Am Chem Soc (2010) 1.49
NMR analysis of covalent intermediates in thiamin diphosphate enzymes. Biochemistry (2003) 1.48
Tetrahedral intermediates in thiamin diphosphate-dependent decarboxylations exist as a 1',4'-imino tautomeric form of the coenzyme, unlike the michaelis complex or the free coenzyme. Biochemistry (2004) 1.42
A genetic strategy to identify targets for the development of drugs that prevent bacterial persistence. Proc Natl Acad Sci U S A (2013) 1.39
Elucidation of the chemistry of enzyme-bound thiamin diphosphate prior to substrate binding: defining internal equilibria among tautomeric and ionization states. Biochemistry (2007) 1.37
Dynamics of reassembled thioredoxin studied by magic angle spinning NMR: snapshots from different time scales. J Am Chem Soc (2009) 1.32
Motions on the millisecond time scale and multiple conformations of HIV-1 capsid protein: implications for structural polymorphism of CA assemblies. J Am Chem Soc (2012) 1.28
Reaction mechanisms of thiamin diphosphate enzymes: defining states of ionization and tautomerization of the cofactor at individual steps. FEBS J (2009) 1.28
Enhanced sensitivity by nonuniform sampling enables multidimensional MAS NMR spectroscopy of protein assemblies. J Phys Chem B (2012) 1.22
Magic angle spinning solid-state NMR spectroscopy for structural studies of protein interfaces. resonance assignments of differentially enriched Escherichia coli thioredoxin reassembled by fragment complementation. J Am Chem Soc (2004) 1.21
Magic angle spinning NMR experiments for structural studies of differentially enriched protein interfaces and protein assemblies. J Am Chem Soc (2008) 1.17
Biochemical and structural characterization of the Pak1-LC8 interaction. J Biol Chem (2008) 1.17
Solid-state and solution NMR studies of the CAP-Gly domain of mammalian dynactin and its interaction with microtubules. J Am Chem Soc (2009) 1.14
1H-13C/1H-15N heteronuclear dipolar recoupling by R-symmetry sequences under fast magic angle spinning for dynamics analysis of biological and organic solids. J Am Chem Soc (2011) 1.14
Spin diffusion driven by R-symmetry sequences: applications to homonuclear correlation spectroscopy in MAS NMR of biological and organic solids. J Am Chem Soc (2011) 1.13
Glutamate 636 of the Escherichia coli pyruvate dehydrogenase-E1 participates in active center communication and behaves as an engineered acetolactate synthase with unusual stereoselectivity. J Biol Chem (2005) 1.12
Solid state NMR: new tools for insight into enzyme function. Curr Opin Struct Biol (2007) 1.12
Observation of thiamin-bound intermediates and microscopic rate constants for their interconversion on 1-deoxy-D-xylulose 5-phosphate synthase: 600-fold rate acceleration of pyruvate decarboxylation by D-glyceraldehyde-3-phosphate. J Am Chem Soc (2012) 1.10
Structure of the pyruvate dehydrogenase multienzyme complex E1 component from Escherichia coli at 1.85 A resolution. Biochemistry (2002) 1.09
Improvement in mechanical properties of jute fibres through mild alkali treatment as demonstrated by utilisation of the Weibull distribution model. Bioresour Technol (2011) 1.09
Resonance assignments and secondary structure analysis of E. coli thioredoxin by magic angle spinning solid-state NMR spectroscopy. J Phys Chem B (2005) 1.08
Electronic and nuclear magnetic resonance spectroscopic features of the 1',4'-iminopyrimidine tautomeric form of thiamin diphosphate, a novel intermediate on enzymes requiring this coenzyme. Biochemistry (2006) 1.08
Acetylphosphinate is the most potent mechanism-based substrate-like inhibitor of both the human and Escherichia coli pyruvate dehydrogenase components of the pyruvate dehydrogenase complex. Bioorg Chem (2006) 1.08
Determination of relative tensor orientations by γ-encoded chemical shift anisotropy/heteronuclear dipolar coupling 3D NMR spectroscopy in biological solids. Phys Chem Chem Phys (2010) 1.05
A dynamic loop at the active center of the Escherichia coli pyruvate dehydrogenase complex E1 component modulates substrate utilization and chemical communication with the E2 component. J Biol Chem (2007) 1.04
Multidimensional magic angle spinning NMR spectroscopy for site-resolved measurement of proton chemical shift anisotropy in biological solids. J Am Chem Soc (2013) 1.02
51V solid-state magic angle spinning NMR spectroscopy of vanadium chloroperoxidase. J Am Chem Soc (2006) 1.01
J-based 2D homonuclear and heteronuclear correlation in solid-state proteins. Magn Reson Chem (2007) 1.01
Efficient coupling of catalysis and dynamics in the E1 component of Escherichia coli pyruvate dehydrogenase multienzyme complex. Proc Natl Acad Sci U S A (2008) 1.01
Modeling unobserved sources of heterogeneity in animal abundance using a Dirichlet process prior. Biometrics (2007) 1.01
Recoupling of chemical shift anisotropy by R-symmetry sequences in magic angle spinning NMR spectroscopy. J Chem Phys (2012) 1.00
Magic angle spinning NMR reveals sequence-dependent structural plasticity, dynamics, and the spacer peptide 1 conformation in HIV-1 capsid protein assemblies. J Am Chem Soc (2013) 0.99
Amino-terminal residues 1-45 of the Escherichia coli pyruvate dehydrogenase complex E1 subunit interact with the E2 subunit and are required for activity of the complex but not for reductive acetylation of the E2 subunit. Biochemistry (2004) 0.98
Backbone assignments in solid-state proteins using J-based 3D heteronuclear correlation spectroscopy. J Am Chem Soc (2007) 0.98
Subclinical atherosclerosis and endothelial dysfunction in patients with early rheumatoid arthritis as evidenced by measurement of carotid intima-media thickness and flow-mediated vasodilatation: an observational study. Semin Arthritis Rheum (2011) 0.97
Disease-associated mutations in the p150(Glued) subunit destabilize the CAP-gly domain. Biochemistry (2010) 0.96
Evidence for dramatic acceleration of a C-H bond ionization rate in thiamin diphosphate enzymes by the protein environment. Biochemistry (2005) 0.96
2H double quantum filtered (DQF) NMR spectroscopy of the nucleus pulposus tissues of the intervertebral disc. Magn Reson Med (2007) 0.95
Resonance Assignments and Secondary Structure Analysis of Dynein Light Chain 8 by Magic Angle Spinning NMR Spectroscopy. Can J Chem (2011) 0.95
51V solid-state magic angle spinning NMR spectroscopy and DFT studies of oxovanadium(V) complexes mimicking the active site of vanadium haloperoxidases. Inorg Chem (2003) 0.95
New model for activation of yeast pyruvate decarboxylase by substrate consistent with the alternating sites mechanism: demonstration of the existence of two active forms of the enzyme. Biochemistry (2002) 0.95
C2-alpha-lactylthiamin diphosphate is an intermediate on the pathway of thiamin diphosphate-dependent pyruvate decarboxylation. Evidence on enzymes and models. J Biol Chem (2004) 0.94
Structural and kinetic analysis of catalysis by a thiamin diphosphate-dependent enzyme, benzoylformate decarboxylase. Biochemistry (2003) 0.94
Dynein and dynactin leverage their bivalent character to form a high-affinity interaction. PLoS One (2013) 0.94
A time-saving strategy for MAS NMR spectroscopy by combining nonuniform sampling and paramagnetic relaxation assisted condensed data collection. J Phys Chem B (2012) 0.94
Magic angle spinning NMR spectroscopy of thioredoxin reassemblies. Magn Reson Chem (2007) 0.94
51V magic angle spinning NMR spectroscopy of Keggin anions [PVnW12-nO40](3+n)-: effect of countercation and vanadium substitution on fine structure constants. J Am Chem Soc (2004) 0.92
Synthesis with good enantiomeric excess of both enantiomers of alpha-ketols and acetolactates by two thiamin diphosphate-dependent decarboxylases. Bioorg Chem (2006) 0.92
Structural determinants of enzyme binding affinity: the E1 component of pyruvate dehydrogenase from Escherichia coli in complex with the inhibitor thiamin thiazolone diphosphate. Biochemistry (2004) 0.91
Solid-state NMR spectroscopy of protein complexes. Methods Mol Biol (2012) 0.91
Solid-state NMR and density functional theory studies of ionization states of thiamin. J Phys Chem B (2010) 0.90
Sensitivity gains, linearity, and spectral reproducibility in nonuniformly sampled multidimensional MAS NMR spectra of high dynamic range. J Biomol NMR (2014) 0.90
Communication between thiamin cofactors in the Escherichia coli pyruvate dehydrogenase complex E1 component active centers: evidence for a "direct pathway" between the 4'-aminopyrimidine N1' atoms. J Biol Chem (2010) 0.90
Insight to the interaction of the dihydrolipoamide acetyltransferase (E2) core with the peripheral components in the Escherichia coli pyruvate dehydrogenase complex via multifaceted structural approaches. J Biol Chem (2013) 0.89
Probing the active center of benzaldehyde lyase with substitutions and the pseudosubstrate analogue benzoylphosphonic acid methyl ester. Biochemistry (2008) 0.89
Assignment of function to histidines 260 and 298 by engineering the E1 component of the Escherichia coli 2-oxoglutarate dehydrogenase complex; substitutions that lead to acceptance of substrates lacking the 5-carboxyl group. Biochemistry (2011) 0.89
Double duty for a conserved glutamate in pyruvate decarboxylase: evidence of the participation in stereoelectronically controlled decarboxylation and in protonation of the nascent carbanion/enamine intermediate . Biochemistry (2010) 0.89
Broadband homonuclear correlation spectroscopy driven by combined R2(n)(v) sequences under fast magic angle spinning for NMR structural analysis of organic and biological solids. J Magn Reson (2013) 0.89
Snapshot of a reaction intermediate: analysis of benzoylformate decarboxylase in complex with a benzoylphosphonate inhibitor. Biochemistry (2009) 0.89
Conformational ensemble modulates cooperativity in the rate-determining catalytic step in the E1 component of the Escherichia coli pyruvate dehydrogenase multienzyme complex. J Biol Chem (2009) 0.87
Determination of pre-steady-state rate constants on the Escherichia coli pyruvate dehydrogenase complex reveals that loop movement controls the rate-limiting step. J Am Chem Soc (2012) 0.87
Active-site changes in the pyruvate dehydrogenase multienzyme complex E1 apoenzyme component from Escherichia coli observed at 2.32 A resolution. Acta Crystallogr D Biol Crystallogr (2006) 0.87
Conformations of alanine-based peptides in water probed by FTIR, Raman, vibrational circular dichroism, electronic circular dichroism, and NMR spectroscopy. Biochemistry (2007) 0.86
Mechanism of benzaldehyde lyase studied via thiamin diphosphate-bound intermediates and kinetic isotope effects. Biochemistry (2008) 0.86
Nuclear magnetic resonance evidence for the role of the flexible regions of the E1 component of the pyruvate dehydrogenase complex from gram-negative bacteria. J Biol Chem (2009) 0.86
Bifunctionality of the thiamin diphosphate cofactor: assignment of tautomeric/ionization states of the 4'-aminopyrimidine ring when various intermediates occupy the active sites during the catalysis of yeast pyruvate decarboxylase. J Am Chem Soc (2012) 0.86
Investigating the vanadium environments in hydroxylamido V(V) dipicolinate complexes using 51V NMR spectroscopy and density functional theory. Inorg Chem (2007) 0.85
Improving removal-based estimates of abundance by sampling a population of spatially distinct subpopulations. Biometrics (2005) 0.85
Expression and purification of the dihydrolipoamide acetyltransferase and dihydrolipoamide dehydrogenase subunits of the Escherichia coli pyruvate dehydrogenase multienzyme complex: a mass spectrometric assay for reductive acetylation of dihydrolipoamide acetyltransferase. Protein Expr Purif (2003) 0.85
Colonization of abandoned swimming pools by larval mosquitoes and their predators following Hurricane Katrina. J Vector Ecol (2008) 0.84
Detection of covalent and noncovalent intermediates in the polymerization reaction catalyzed by a C149S class III polyhydroxybutyrate synthase. Biochemistry (2009) 0.84
Influence of allosteric regulators on individual steps in the reaction catalyzed by Mycobacterium tuberculosis 2-hydroxy-3-oxoadipate synthase. J Biol Chem (2013) 0.83
Effects of disease modifying anti-rheumatic drugs on subclinical atherosclerosis and endothelial dysfunction which has been detected in early rheumatoid arthritis: 1-year follow-up study. Semin Arthritis Rheum (2013) 0.83
Probing local environments in paramagnetic europium-substituted Keggin solids by 31P magic angle spinning NMR spectroscopy. J Phys Chem B (2006) 0.83
Chloro-substituted dipicolinate vanadium complexes: synthesis, solution, solid-state, and insulin-enhancing properties. J Inorg Biochem (2008) 0.83
A novel disulfide-rich protein motif from avian eggshell membranes. PLoS One (2011) 0.83
Interchain acetyl transfer in the E2 component of bacterial pyruvate dehydrogenase suggests a model with different roles for each chain in a trimer of the homooligomeric component. Biochemistry (2012) 0.82
51V solid-state NMR and density functional theory studies of vanadium environments in V(V)O2 dipicolinic acid complexes. J Chem Phys (2008) 0.82
Three-dimensional structure of CAP-gly domain of mammalian dynactin determined by magic angle spinning NMR spectroscopy: conformational plasticity and interactions with end-binding protein EB1. J Mol Biol (2013) 0.82