J C Escalante-Semerena

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Top papers

Rank Title Journal Year PubWeight™‹?›
1 A phylogenetically conserved NAD+-dependent protein deacetylase activity in the Sir2 protein family. Proc Natl Acad Sci U S A 2000 6.49
2 Sir2-dependent activation of acetyl-CoA synthetase by deacetylation of active lysine. Science 2002 4.61
3 Regulation of cobalamin biosynthetic operons in Salmonella typhimurium. J Bacteriol 1987 2.74
4 CobB, a new member of the SIR2 family of eucaryotic regulatory proteins, is required to compensate for the lack of nicotinate mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase activity in cobT mutants during cobalamin biosynthesis in Salmonella typhimurium LT2. J Biol Chem 1998 2.37
5 The poc locus is required for 1,2-propanediol-dependent transcription of the cobalamin biosynthetic (cob) and propanediol utilization (pdu) genes of Salmonella typhimurium. J Bacteriol 1992 1.96
6 Propionate catabolism in Salmonella typhimurium LT2: two divergently transcribed units comprise the prp locus at 8.5 centisomes, prpR encodes a member of the sigma-54 family of activators, and the prpBCDE genes constitute an operon. J Bacteriol 1997 1.94
7 Tetrahydromethanopterin, a carbon carrier in methanogenesis. J Biol Chem 1984 1.94
8 Acetyl-coenzyme A synthetase (AMP forming). Cell Mol Life Sci 2004 1.88
9 Salmonella typhimurium LT2 catabolizes propionate via the 2-methylcitric acid cycle. J Bacteriol 1999 1.72
10 Construction and use of new cloning vectors for the rapid isolation of recombinant proteins from Escherichia coli. Plasmid 2008 1.71
11 Purification and initial characterization of the ATP:corrinoid adenosyltransferase encoded by the cobA gene of Salmonella typhimurium. J Bacteriol 1995 1.66
12 In vitro conversion of propionate to pyruvate by Salmonella enterica enzymes: 2-methylcitrate dehydratase (PrpD) and aconitase Enzymes catalyze the conversion of 2-methylcitrate to 2-methylisocitrate. Biochemistry 2001 1.42
13 Analysis of mutants of Salmonella typhimurium defective in the synthesis of the nucleotide loop of cobalamin. J Bacteriol 1993 1.38
14 Coenzyme F420 dependence of the methylenetetrahydromethanopterin dehydrogenase of Methanobacterium thermoautotrophicum. Biochem Biophys Res Commun 1985 1.37
15 Glutathione is required for maximal transcription of the cobalamin biosynthetic and 1,2-propanediol utilization (cob/pdu) regulon and for the catabolism of ethanolamine, 1,2-propanediol, and propionate in Salmonella typhimurium LT2. J Bacteriol 1995 1.36
16 The cobT gene of Salmonella typhimurium encodes the NaMN: 5,6-dimethylbenzimidazole phosphoribosyltransferase responsible for the synthesis of N1-(5-phospho-alpha-D-ribosyl)-5,6-dimethylbenzimidazole, an intermediate in the synthesis of the nucleotide loop of cobalamin. J Bacteriol 1994 1.35
17 Three-dimensional structure of ATP:corrinoid adenosyltransferase from Salmonella typhimurium in its free state, complexed with MgATP, or complexed with hydroxycobalamin and MgATP. Biochemistry 2001 1.34
18 The prpE gene of Salmonella typhimurium LT2 encodes propionyl-CoA synthetase. Microbiology 1999 1.29
19 An in vitro reducing system for the enzymic conversion of cobalamin to adenosylcobalamin. J Biol Chem 2001 1.28
20 Component A2 of the methylcoenzyme M methylreductase system from Methanobacterium thermoautotrophicum. J Bacteriol 1985 1.28
21 In vitro synthesis of the nucleotide loop of cobalamin by Salmonella typhimurium enzymes. Proc Natl Acad Sci U S A 1999 1.23
22 Studies of regulation of expression of the propionate (prpBCDE) operon provide insights into how Salmonella typhimurium LT2 integrates its 1,2-propanediol and propionate catabolic pathways. J Bacteriol 1998 1.23
23 Cloning, sequencing and overexpression of cobA which encodes ATP:corrinoid adenosyltransferase in Salmonella typhimurium. Gene 1993 1.22
24 The cobY gene of the archaeon Halobacterium sp. strain NRC-1 is required for de novo cobamide synthesis. J Bacteriol 2003 1.20
25 Purification and characterization of the bifunctional CobU enzyme of Salmonella typhimurium LT2. Evidence for a CobU-GMP intermediate. J Biol Chem 1995 1.19
26 Studies of propionate toxicity in Salmonella enterica identify 2-methylcitrate as a potent inhibitor of cell growth. J Biol Chem 2001 1.18
27 CobD, a novel enzyme with L-threonine-O-3-phosphate decarboxylase activity, is responsible for the synthesis of (R)-1-amino-2-propanol O-2-phosphate, a proposed new intermediate in cobalamin biosynthesis in Salmonella typhimurium LT2. J Biol Chem 1998 1.18
28 Purification and characterization of CobT, the nicotinate-mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase enzyme from Salmonella typhimurium LT2. J Biol Chem 1997 1.17
29 DNA polymerase I function is required for the utilization of ethanolamine, 1,2-propanediol, and propionate by Salmonella typhimurium LT2. J Bacteriol 1995 1.15
30 The cobC gene of Salmonella typhimurium codes for a novel phosphatase involved in the assembly of the nucleotide loop of cobalamin. J Biol Chem 1994 1.14
31 Tetrahydromethanopterin-dependent methanogenesis from non-physiological C1 donors in Methanobacterium thermoautotrophicum. J Bacteriol 1985 1.13
32 Identification of an alternative nucleoside triphosphate: 5'-deoxyadenosylcobinamide phosphate nucleotidyltransferase in Methanobacterium thermoautotrophicum delta H. J Bacteriol 2000 1.11
33 Reduction of Cob(III)alamin to Cob(II)alamin in Salmonella enterica serovar typhimurium LT2. J Bacteriol 2000 1.10
34 Identification of 5,6-dimethylbenzimidazole as the Co alpha ligand of the cobamide synthesized by Salmonella typhimurium. Nutritional characterization of mutants defective in biosynthesis of the imidazole ring. J Biol Chem 1992 1.10
35 prpR, ntrA, and ihf functions are required for expression of the prpBCDE operon, encoding enzymes that catabolize propionate in Salmonella enterica serovar typhimurium LT2. J Bacteriol 2000 1.06
36 In vitro analysis of the interactions between the PocR regulatory protein and the promoter region of the cobalamin biosynthetic (cob) operon of Salmonella typhimurium LT2. J Bacteriol 1996 1.05
37 Identification of a new prp locus required for propionate catabolism in Salmonella typhimurium LT2. FEMS Microbiol Lett 1996 1.04
38 Methenyl-tetrahydromethanopterin cyclohydrolase in cell extracts of Methanobacterium. Arch Biochem Biophys 1985 1.02
39 Biochemistry and molecular genetics of cobalamin biosynthesis. Prog Nucleic Acid Res Mol Biol 1997 1.02
40 Three-dimensional structure of adenosylcobinamide kinase/adenosylcobinamide phosphate guanylyltransferase from Salmonella typhimurium determined to 2.3 A resolution,. Biochemistry 1998 1.00
41 cobB function is required for catabolism of propionate in Salmonella typhimurium LT2: evidence for existence of a substitute function for CobB within the 1,2-propanediol utilization (pdu) operon. J Bacteriol 1996 0.98
42 A link between transcription and intermediary metabolism: a role for Sir2 in the control of acetyl-coenzyme A synthetase. Curr Opin Microbiol 2004 0.97
43 Identification and initial characterization of the eutF locus of Salmonella typhimurium. J Bacteriol 1991 0.97
44 Formaldehyde oxidation and methanogenesis. J Bacteriol 1984 0.97
45 cobU-dependent assimilation of nonadenosylated cobinamide in cobA mutants of Salmonella typhimurium. J Bacteriol 1993 0.96
46 Structural investigation of the biosynthesis of alternative lower ligands for cobamides by nicotinate mononucleotide: 5,6-dimethylbenzimidazole phosphoribosyltransferase from Salmonella enterica. J Biol Chem 2001 0.94
47 Three-dimensional structure of adenosylcobinamide kinase/adenosylcobinamide phosphate guanylyltransferase (CobU) complexed with GMP: evidence for a substrate-induced transferase active site. Biochemistry 1999 0.94
48 Analysis of the adenosylcobinamide kinase/adenosylcobinamide-phosphate guanylyltransferase (CobU) enzyme of Salmonella typhimurium LT2. Identification of residue His-46 as the site of guanylylation. J Biol Chem 2000 0.93
49 The three-dimensional structures of nicotinate mononucleotide:5,6- dimethylbenzimidazole phosphoribosyltransferase (CobT) from Salmonella typhimurium complexed with 5,6-dimethybenzimidazole and its reaction products determined to 1.9 A resolution. Biochemistry 1999 0.87
50 Molecular characterization of eutF mutants of Salmonella typhimurium LT2 identifies eutF lesions as partial-loss-of-function tonB alleles. J Bacteriol 1999 0.87
51 Residues C123 and D58 of the 2-methylisocitrate lyase (PrpB) enzyme of Salmonella enterica are essential for catalysis. J Bacteriol 2003 0.86
52 Functional analysis of the nicotinate mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase (CobT) enzyme, involved in the late steps of coenzyme B12 biosynthesis in Salmonella enterica. J Bacteriol 2010 0.85
53 The coenzyme b12 analog 5'-deoxyadenosylcobinamide-gdp supports catalysis by methylmalonyl-coa mutase in the absence of trans-ligand coordination. J Biol Chem 2001 0.82
54 Integration host factor is required for 1,2-propanediol-dependent transcription of the cob/pdu regulon in Salmonella typhimurium LT2. J Bacteriol 1997 0.80
55 A simplified methylcoenzyme M methylreductase assay with artificial electron donors and different preparations of component C from Methanobacterium thermoautotrophicum delta H. J Bacteriol 1988 0.78
56 Impact of genomics and genetics on the elucidation of bacterial metabolism. Methods 2000 0.76
57 High levels of transcription factor RpoS (sigma S) in mviA mutants negatively affect 1,2-propanediol-dependent transcription of the cob/pdu regulon of Salmonella typhimurium LT2. FEMS Microbiol Lett 1998 0.75