PubRank

J M Calvo

Author PubWeight™ 127.07‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Nucleotide sequence of the E coli gene coding for dihydrofolate reductase. Nucleic Acids Res 1980 8.75
2 A large family of bacterial activator proteins. Proc Natl Acad Sci U S A 1988 8.19
3 Compounds which serve as the sole source of carbon or nitrogen for Salmonella typhimurium LT-2. J Bacteriol 1969 5.99
4 leu operon of Salmonella typhimurium is controlled by an attenuation mechanism. Proc Natl Acad Sci U S A 1979 2.91
5 Regulation of branched-chain amino acid biosynthesis in Salmonella typhimurium: isolation of regulatory mutants. J Bacteriol 1969 2.88
6 Characterization of Lrp, and Escherichia coli regulatory protein that mediates a global response to leucine. J Biol Chem 1991 2.83
7 The ilvIH operon of Escherichia coli is positively regulated. J Bacteriol 1990 2.71
8 Alternative secondary structures of leader RNAs and the regulation of the trp, phe, his, thr, and leu operons. Proc Natl Acad Sci U S A 1979 2.71
9 Molecular structure of ilvIH and its evolutionary relationship to ilvG in Escherichia coli K12. Nucleic Acids Res 1983 2.39
10 Mutants of Salmonella typhimurium with an altered leucyl-transfer ribonucleic acid synthetase. J Bacteriol 1971 2.19
11 A multisite-mutation map of the leucine operon of Salmonella typhimurium. Genetics 1970 2.17
12 Lrp, a global regulatory protein of Escherichia coli, binds co-operatively to multiple sites and activates transcription of ilvIH. J Mol Biol 1993 2.17
13 Control of leu operon expression in Escherichia coli by a transcription attenuation mechanism. J Mol Biol 1981 2.01
14 Transcriptional regulation of the ilv-leu operon of Bacillus subtilis. J Bacteriol 1992 1.96
15 A consensus sequence for binding of Lrp to DNA. J Bacteriol 1995 1.88
16 Physical characterization of the ilvHI operon of Escherichia coli K-12. J Bacteriol 1981 1.85
17 Operator constitutive mutations in the leucine operon of Salmonella typhimurium. Genetics 1969 1.84
18 Acetohydroxy acid synthase isoenzymes of Escherichia coli K12 and Salmonella typhimurium. Ann Microbiol (Paris) 1982 1.82
19 The nucleotide sequence of a rat myosin light chain 2 gene. Nucleic Acids Res 1984 1.81
20 Leucine-responsive regulatory protein controls the expression of both the pap and fan pili operons in Escherichia coli. Proc Natl Acad Sci U S A 1992 1.81
21 Regions of the Bacillus subtilis ilv-leu operon involved in regulation by leucine. J Bacteriol 1993 1.76
22 Fluorometric assay of enzymatic reactions involving acetyl Coenzyme A in aldol condensations. Anal Biochem 1969 1.75
23 A protein that binds to the regulatory region of the Escherichia coli ilvIH operon. J Bacteriol 1989 1.75
24 Lrp, a leucine-responsive protein, regulates branched-chain amino acid transport genes in Escherichia coli. J Bacteriol 1992 1.74
25 Lrp, a major regulatory protein in Escherichia coli, bends DNA and can organize the assembly of a higher-order nucleoprotein structure. EMBO J 1993 1.74
26 Mutations affecting the ability of Escherichia coli Lrp to bind DNA, activate transcription, or respond to leucine. J Bacteriol 1993 1.70
27 Unusual organization of the ilvIH promoter of Escherichia coli. J Bacteriol 1985 1.68
28 Effects of nutrition and growth rate on Lrp levels in Escherichia coli. J Bacteriol 1996 1.67
29 Characterization of the 3' end of the leucine operon of Salmonella typhimurium. Mol Gen Genet 1985 1.63
30 Regulation of the Escherichia coli lrp gene. J Bacteriol 1994 1.56
31 Regulation of dihydrofolate reductase synthesis in Escherichia coli. Mol Gen Genet 1979 1.53
32 Salmonella locus affecting phosphoenolpyruvate synthase activity identified by a deletion analysis. J Bacteriol 1971 1.30
33 The ilvIH operon of Escherichia coli K-12. Identification of the gene products and recognition of the translational start by polypeptide microsequencing. Biochim Biophys Acta 1985 1.25
34 IlvHI locus of Salmonella typhimurium. J Bacteriol 1983 1.21
35 The nucleotide sequence of leuA from Salmonella typhimurium. Nucleic Acids Res 1990 1.20
36 Leucine-regulated self-association of leucine-responsive regulatory protein (Lrp) from Escherichia coli. J Mol Biol 2001 1.20
37 Transcription attenuation is the major mechanism by which the leu operon of Salmonella typhimurium is controlled. J Mol Biol 1983 1.18
38 Lack of end-product inhibition and repression of leucine synthesis in a strain of Salmonella typhimurium. Science 1967 1.17
39 Isolation and characterization of lambda pleu bacteriophages. J Bacteriol 1977 1.16
40 Amplification and modification of dihydrofolate reductase in Escherichia coli. Nucleotide sequence of fol genes from mutationally altered plasmids. J Biol Chem 1982 1.14
41 Cloning of an EcoRI-generated fragment of the leucine operon of Salmonella typhimurium. Gene 1980 1.14
42 Transcription initiation sites of the leucine operons of Salmonella typhimurium and Escherichia coli. J Mol Biol 1983 1.14
43 A Salmonella typhimurium locus involved in the regulation of isoleucine, valine and leucine biosynthesis. Genetics 1969 1.14
44 Leucyl-transfer ribonucleic acid synthetase from a wild-type and temperature-sensitive mutant of Salmonella typhimurium. J Bacteriol 1972 1.14
45 High A + T content conserved in DNA sequences upstream of leuABCD in Escherichia coli and Salmonella typhimurium. J Bacteriol 1986 1.13
46 Nucleotide sequence of dihydrofolate reductase genes from trimethoprim-resistant mutants of Escherichia coli. Evidence that dihydrofolate reductase interacts with another essential gene product. Mol Gen Genet 1982 1.12
47 Distribution of the isopropylmalate pathway to leucine among diverse bacteria. J Bacteriol 1974 1.08
48 In vitro transcription from the Escherichia coli ilvIH promoter. J Bacteriol 1992 1.08
49 The leucine-responsive regulatory protein (Lrp) from Escherichia coli. Stoichiometry and minimal requirements for binding to DNA. J Biol Chem 1996 1.07
50 Transcription termination sites at the distal end of the leu operon of Salmonella typhimurium. J Mol Biol 1987 1.07
51 The nucleotide sequence of leuC from Salmonella typhimurium. Nucleic Acids Res 1990 1.05
52 Recognition of an Escherichia operator by a Salmonella repressor. J Bacteriol 1971 1.00
53 Acetolactate synthase isozyme III from Escherichia coli. Methods Enzymol 1988 1.00
54 Mutations that convert the four leucine codons of the Salmonella typhimurium leu leader to four threonine codons. J Bacteriol 1985 1.00
55 Relationship between messenger ribonucleic acid and enzyme levels specified by the leucine operon of Escherichia coli K-12. J Bacteriol 1977 1.00
56 Organization of Lrp-binding sites upstream of ilvIH in Salmonella typhimurium. Mol Microbiol 1993 1.00
57 Promoter mutation causing catabolite repression of the Salmonella typhimurium leucine operon. J Bacteriol 1984 0.99
58 flrB, a regulatory locus controlling branched-chain amino acid biosynthesis in Salmonella typhimurium. J Bacteriol 1974 0.99
59 Modulation of Lrp action in Escherichia coli by leucine: effects on non-specific binding of Lrp to DNA. J Mol Biol 2001 0.98
60 Transcription attenuation in Salmonella typhimurium: the significance of rare leucine codons in the leu leader. Proc Natl Acad Sci U S A 1986 0.97
61 Effect of 4-azaleucine upon leucine metabolism in Salmonella typhimurium. J Bacteriol 1971 0.95
62 Global versus local regulatory roles for Lrp-related proteins: Haemophilus influenzae as a case study. J Bacteriol 2001 0.92
63 Alpha-isopropylmalate synthase from Salmonella typhimurium. Carboxypeptidase digestion studies of parent and feedback-insensitive enzymes. Biochim Biophys Acta 1971 0.92
64 The amino acid sequence of Lrp is highly conserved in four enteric microorganisms. J Bacteriol 1995 0.91
65 Transcriptional proofreading in Escherichia coli. EMBO J 1989 0.89
66 Escherichia coli B/r leuK mutant lacking pseudouridine synthase I activity. J Bacteriol 1986 0.86
67 Transcription attenuation-mediated control of leu operon expression: influence of the number of Leu control codons. J Bacteriol 1991 0.85
68 Phasic activity of the basolateral amygdala, cingulate gyrus, and hippocampus during REM sleep in the cat. Sleep 1984 0.84
69 Permeabilized cell and radiochemical assays for beta-isopropylmalate dehydrogenase. Methods Enzymol 1988 0.83
70 Acetylcholine as a brain state modulator: triggering and long-term regulation of REM sleep. Prog Brain Res 1993 0.80
71 Cholinergic microstimulation of the peribrachial nucleus in the cat. I. Immediate and prolonged increases in ponto-geniculo-occipital waves. Arch Ital Biol 1992 0.79
72 Wild-type and hexahistidine-tagged derivatives of leucine-responsive regulatory protein from Escherichia coli. Methods Enzymol 2000 0.79
73 Sequence determinants of DNA bending in the ilvlH promoter and regulatory region of Escherichia coli. Nucleic Acids Res 1994 0.78
74 Effect of DNA superhelicity on transcription termination. Mol Gen Genet 1987 0.78
75 Long-term enhancement of REM sleep following cholinergic stimulation. Neuroreport 1991 0.78
76 Habituation to bearable experimental pain elicited by tooth pulp electrical stimulation. Pain 1981 0.78
77 Escherichia coli Lrp (leucine-responsive regulatory protein) does not directly regulate expression of the leu operon promoter. J Bacteriol 1999 0.77
78 [Orbital rhabdomyosarcoma: difficulties with European treatment protocol]. Arch Soc Esp Oftalmol 2005 0.76
79 [Visceral leishmaniasis presenting with peripheral leukocytosis and lymphocytosis]. Sangre (Barc) 1994 0.76
80 The role of the temporal lobe amygdala in ponto-geniculo-occipital activity and sleep organization in cats. Brain Res 1987 0.76
81 Amygdaloid kindling during rapid eye movement (REM) sleep in cats. Neurosci Lett 1982 0.75
82 [Sleep and wakefulness. Current concepts]. Gac Med Mex 1989 0.75
83 [Experimental models of epilepsy]. Gac Med Mex 1993 0.75
84 Anatomical organization of the phasic activity produced by reserpine at the level of the oculomotor system. Electroencephalogr Clin Neurophysiol 1976 0.75
85 Kindling in the spinal cord: differential effects on mono- and polysynaptic reflexes and its modifications by atropine and naloxone. Electroencephalogr Clin Neurophysiol Suppl 1982 0.75
86 [Paraneoplastic Clostridium septicum bacteremia]. Enferm Infecc Microbiol Clin 2001 0.75
87 Effects of two antidepressants on the different sleep stages in healthy human subjects. Bol Estud Med Biol 1978 0.75
88 Alpha-isopropylmalate synthase from Salmonella typhimurium--amino acid composition, NH 2 -terminal analysis, and fingerprint analysis. Biochim Biophys Acta 1971 0.75
89 [Epilepsy. Recent advances in the knowledge of its physiopathology]. Gac Med Mex 1990 0.75
90 [Phasic activity in rats]. Physiol Behav 1977 0.75
91 Effects of diphenylhydantoin on the spontaneous activity of Purkinje, nucleus interpositus, red nucleus and motor cortex cells. Electroencephalogr Clin Neurophysiol 1979 0.75
92 [Sleep and its disorders]. Gac Med Mex 1992 0.75
93 [Access to bone marrow transplantation in acute myeloblastic leukemia. Study of 52 patients treated in a single center]. Med Clin (Barc) 1997 0.75
94 Transcriptional termination. Charging it cancels the order. Curr Biol 1994 0.75
95 Massed amygdaloid kindling in encéphale isolé cats: its facilitation by naloxone. Epilepsy Res 1989 0.75