Year |
Citation |
Score |
2005 |
Xuan J, Zalkin H, Weng M. Mutations in PurBox1 of the Bacillus subtilis pur operon control site affect adenine-regulated expression in vivo Science in China, Series C: Life Sciences. 48: 133-138. PMID 15986885 DOI: 10.1360/04Yc0041 |
0.415 |
|
2003 |
Bera AK, Zhu J, Zalkin H, Smith JL. Functional dissection of the Bacillus subtilis pur operator site. Journal of Bacteriology. 185: 4099-109. PMID 12837784 DOI: 10.1128/Jb.185.14.4099-4109.2003 |
0.427 |
|
2003 |
Sinha SC, Krahn J, Shin BS, Tomchick DR, Zalkin H, Smith JL. The purine repressor of Bacillus subtilis: a novel combination of domains adapted for transcription regulation. Journal of Bacteriology. 185: 4087-98. PMID 12837783 DOI: 10.1128/Jb.185.14.4087-4098.2003 |
0.445 |
|
2002 |
Huffman JL, Lu F, Zalkin H, Brennan RG. Role of residue 147 in the gene regulatory function of the Escherichia coli purine repressor. Biochemistry. 41: 511-20. PMID 11781089 DOI: 10.1021/Bi0156660 |
0.408 |
|
2000 |
Weng M, Zalkin H. Mutations in the Bacillus subtilis Purine Repressor That Perturb PRPP Effector Function In Vitro and In Vivo Current Microbiology. 41: 56-59. PMID 10919400 DOI: 10.1007/S002840010091 |
0.418 |
|
2000 |
Bera AK, Chen S, Smith JL, Zalkin H. Temperature-dependent function of the glutamine phosphoribosylpyrophosphate amidotransferase ammonia channel and coupling with glycinamide ribonucleotide synthetase in a hyperthermophile. Journal of Bacteriology. 182: 3734-9. PMID 10850988 DOI: 10.1128/Jb.182.13.3734-3739.2000 |
0.341 |
|
2000 |
Bera AK, Smith JL, Zalkin H. Dual role for the glutamine phosphoribosylpyrophosphate amidotransferase ammonia channel. Interdomain signaling and intermediate channeling. The Journal of Biological Chemistry. 275: 7975-9. PMID 10713115 DOI: 10.1074/Jbc.275.11.7975 |
0.324 |
|
1999 |
Bera AK, Chen S, Smith JL, Zalkin H. Interdomain signaling in glutamine phosphoribosylpyrophosphate amidotransferase. The Journal of Biological Chemistry. 274: 36498-504. PMID 10593947 DOI: 10.1074/Jbc.274.51.36498 |
0.41 |
|
1999 |
Sinha S, Rappu P, Lange SC, Mäntsälä P, Zalkin H, Smith JL. Crystal structure of Bacillus subtilis YabJ, a purine regulatory protein and member of the highly conserved YjgF family. Proceedings of the National Academy of Sciences of the United States of America. 96: 13074-9. PMID 10557275 DOI: 10.1073/Pnas.96.23.13074 |
0.383 |
|
1999 |
Chen S, Burgner JW, Krahn JM, Smith JL, Zalkin H. Tryptophan fluorescence monitors multiple conformational changes required for glutamine phosphoribosylpyrophosphate amidotransferase interdomain signaling and catalysis. Biochemistry. 38: 11659-69. PMID 10512621 DOI: 10.1021/Bi991060O |
0.426 |
|
1999 |
Rappu P, Shin BS, Zalkin H, Mäntsälä P. A Role for a Highly Conserved Protein of Unknown Function in Regulation of Bacillus subtilis purA by the Purine Repressor Journal of Bacteriology. 181: 3810-3815. PMID 10368157 DOI: 10.1128/Jb.181.12.3810-3815.1999 |
0.422 |
|
1999 |
Li S, Smith JL, Zalkin H. Mutational analysis of Bacillus subtilis glutamine phosphoribosylpyrophosphate amidotransferase propeptide processing. Journal of Bacteriology. 181: 1403-8. PMID 10049369 DOI: 10.1128/Jb.181.5.1403-1408.1999 |
0.421 |
|
1998 |
Lu F, Brennan RG, Zalkin H. Escherichia coli purine repressor: Key residues for the allosteric transition between active and inactive conformations and for interdomain signaling Biochemistry. 37: 15680-15690. PMID 9843372 DOI: 10.1021/Bi981617K |
0.413 |
|
1998 |
Arvidson DN, Lu F, Faber C, Zalkin H, Brennan RG. The structure of PurR mutant L54M shows an alternative to DNA kinking Nature Structural Biology. 5: 436-441. PMID 9628480 DOI: 10.1038/Nsb0698-436 |
0.382 |
|
1998 |
Zalkin H, Smith JL. Enzymes Utilizing Glutamine as an Amide Donor Advances in Enzymology and Related Areas of Molecular Biology. 72: 87-144. PMID 9559052 DOI: 10.1002/9780470123188.Ch4 |
0.362 |
|
1998 |
Muchmore CR, Krahn JM, Kim JH, Zalkin H, Smith JL. Crystal structure of glutamine phosphoribosylpyrophosphate amidotransferase from Escherichia coli. Protein Science : a Publication of the Protein Society. 7: 39-51. PMID 9514258 DOI: 10.1002/Pro.5560070104 |
0.459 |
|
1998 |
Lu F, Schumacher MA, Arvidson DN, Haldimann A, Wanner BL, Zalkin H, Brennan RG. Structure-based redesign of corepressor specificity of the Escherichia coli purine repressor by substitution of residue 190 Biochemistry. 37: 971-982. PMID 9454587 DOI: 10.1021/Bi971942S |
0.454 |
|
1997 |
Chen S, Zheng L, Dean DR, Zalkin H. Role of NifS in maturation of glutamine phosphoribosylpyrophosphate amidotransferase Journal of Bacteriology. 179: 7587-7590. PMID 9393728 DOI: 10.1128/Jb.179.23.7587-7590.1997 |
0.362 |
|
1997 |
Shin BS, Stein A, Zalkin H. Interaction of Bacillus subtilis purine repressor with DNA Journal of Bacteriology. 179: 7394-7402. PMID 9393704 DOI: 10.1128/Jb.179.23.7394-7402.1997 |
0.403 |
|
1997 |
Krahn JM, Kim JH, Burns MR, Parry RJ, Zalkin H, Smith JL. Coupled formation of an amidotransferase interdomain ammonia channel and a phosphoribosyltransferase active site. Biochemistry. 36: 11061-8. PMID 9333323 DOI: 10.1021/Bi9714114 |
0.444 |
|
1997 |
Schumacher MA, Glasfeld A, Zalkin H, Brennan RG. The x-ray structure of the PurR-guanine-purF operator complex reveals the contributions of complementary electrostatic surfaces and a water- mediated hydrogen bond to corepressor specificity and binding affinity Journal of Biological Chemistry. 272: 22648-22653. PMID 9278422 DOI: 10.1074/Jbc.272.36.22648 |
0.408 |
|
1997 |
Chen S, Tomchick DR, Wolle D, Hu P, Smith JL, Switzer RL, Zalkin H. Mechanism of the synergistic end-product regulation of Bacillus subtilis glutamine phosphoribosylpyrophosphate amidotransferase by nucleotides. Biochemistry. 36: 10718-26. PMID 9271502 DOI: 10.1021/Bi9711893 |
0.439 |
|
1997 |
Zalkin H. Formyltetrahydrofolate Hydrolase From Escherichia Coli Methods in Enzymology. 281: 214-218. PMID 9250985 DOI: 10.1016/S0076-6879(97)81027-0 |
0.408 |
|
1997 |
Chen S, Nagy PL, Zalkin H. Role of NRF-1 in bidirectional transcription of the human GPAT-AIRC purine biosynthesis locus. Nucleic Acids Research. 25: 1809-1816. PMID 9108165 DOI: 10.1093/Nar/25.9.1809 |
0.399 |
|
1996 |
Kim JH, Krahn JM, Tomchick DR, Smith JL, Zalkin H. Structure and function of the glutamine phosphoribosylpyrophosphate amidotransferase glutamine site and communication with the phosphoribosylpyrophosphate site. The Journal of Biological Chemistry. 271: 15549-57. PMID 8663035 DOI: 10.1074/Jbc.271.26.15549 |
0.479 |
|
1995 |
Nagy PL, Marolewski A, Benkovic SJ, Zalkin H. Formyltetrahydrofolate hydrolase, a regulatory enzyme that functions to balance pools of tetrahydrofolate and one-carbon tetrahydrofolate adducts in Escherichia coli. Journal of Bacteriology. 177: 1292-8. PMID 7868604 DOI: 10.1128/Jb.177.5.1292-1298.1995 |
0.45 |
|
1995 |
Gavalas A, Zalkin H. Analysis of the Chicken GPAT/AIRC Bidirectional Promoter for de Novo Purine Nucleotide Synthesis Journal of Biological Chemistry. 270: 2403-2410. PMID 7836476 DOI: 10.1074/Jbc.270.5.2403 |
0.397 |
|
1995 |
Weng M, Nagy PL, Zalkin H. Identification of the Bacillus subtilis pur operon repressor Proceedings of the National Academy of Sciences of the United States of America. 92: 7455-7459. PMID 7638212 DOI: 10.1073/Pnas.92.16.7455 |
0.459 |
|
1995 |
Schumacher MA, Choi KY, Lu F, Zalkin H, Brennan RG. Mechanism of corepressor-mediated specific DNA binding by the purine repressor Cell. 83: 147-155. PMID 7553867 DOI: 10.1016/0092-8674(95)90243-0 |
0.39 |
|
1995 |
Kim JH, Wolle D, Haridas K, Parry RJ, Smith JL, Zalkin H. A stable carbocyclic analog of 5-phosphoribosyl-1-pyrophosphate to probe the mechanism of catalysis and regulation of glutamine phosphoribosylpyrophosphate amidotransferase. The Journal of Biological Chemistry. 270: 17394-9. PMID 7542237 DOI: 10.1074/Jbc.270.29.17394 |
0.457 |
|
1994 |
Smith JL, Zaluzec EJ, Wery JP, Niu L, Switzer RL, Zalkin H, Satow Y. Structure of the allosteric regulatory enzyme of purine biosynthesis. Science (New York, N.Y.). 264: 1427-33. PMID 8197456 DOI: 10.1126/Science.8197456 |
0.475 |
|
1994 |
Choi KY, Zalkin H. Role of the purine repressor hinge sequence in repressor function. Journal of Bacteriology. 176: 1767-1772. PMID 8132474 DOI: 10.1128/Jb.176.6.1767-1772.1994 |
0.411 |
|
1994 |
He B, Zalkin H. Regulation of Escherichia coli purA by purine repressor, one component of a dual control mechanism. Journal of Bacteriology. 176: 1009-1013. PMID 8106311 DOI: 10.1128/Jb.176.4.1009-1013.1994 |
0.409 |
|
1994 |
Schumacher MA, Choi KY, Zalkin H, Brennan RG. Crystallization and preliminary X-ray analysis of an Escherichia coli purine repressor-hypoxanthine-DNA complex Journal of Molecular Biology. 242: 302-305. PMID 8089849 DOI: 10.1006/Jmbi.1994.1580 |
0.34 |
|
1994 |
Schumacher MA, Choi KY, Zalkin H, Brennan RG. Crystal structure of lacl member, PurR, bound to DNA: Minor groove binding by α helices Science. 266: 763-770. PMID 7973627 DOI: 10.1126/Science.7973627 |
0.411 |
|
1993 |
Zalkin H. Overview of multienzyme systems in biosynthetic pathways Biochemical Society Transactions. 21: 203-207. PMID 8449294 DOI: 10.1042/Bst0210203 |
0.32 |
|
1993 |
He B, Choi KY, Zalkin H. Regulation of Escherichia coli glnB, prsA, and speA by the purine repressor. Journal of Bacteriology. 175: 3598-3606. PMID 8388874 DOI: 10.1128/Jb.175.11.3598-3606.1993 |
0.404 |
|
1993 |
Gavalas A, Dixon JE, Brayton KA, Zalkin H. Coexpression of two closely linked avian genes for purine nucleotide synthesis from a bidirectional promoter. Molecular and Cellular Biology. 13: 4784-92. PMID 8336716 DOI: 10.1128/Mcb.13.8.4784 |
0.411 |
|
1993 |
Nagy PL, McCorkle GM, Zalkin H. purU, a source of formate for purT-dependent phosphoribosyl-N-formylglycinamide synthesis. Journal of Bacteriology. 175: 7066-7073. PMID 8226647 DOI: 10.1128/Jb.175.21.7066-7073.1993 |
0.38 |
|
1992 |
He B, Smith JM, Zalkin H. Escherichia coli purB gene: cloning, nucleotide sequence, and regulation by purR. Journal of Bacteriology. 174: 130-136. PMID 1729205 DOI: 10.1128/Jb.174.1.130-136.1992 |
0.467 |
|
1992 |
Schumacher MA, Choi KY, Zalkin H, Brennan RG. Crystallization and preliminary X-ray studies on the co-repressor binding domain of the Escherichia coli purine repressor Journal of Molecular Biology. 225: 1131-1133. PMID 1613795 DOI: 10.1016/0022-2836(92)90111-V |
0.41 |
|
1992 |
Powell SM, Zalkin H, Dixon JE. Cloning and characterization of the cDNA encoding human adenylosuccinate synthetase Febs Letters. 303: 4-10. PMID 1592113 DOI: 10.1016/0014-5793(92)80465-S |
0.376 |
|
1992 |
Haeffner-Gormley L, Chen Z, Zalkin H, Colman RF. Importance of lysine-286 at the NADP site of glutamate dehydrogenase from Salmonella typhimurium. Biochemistry. 31: 7807-14. PMID 1510967 DOI: 10.1021/Bi00149A010 |
0.404 |
|
1992 |
Zheng L, Kennedy MC, Blondin GA, Beinert H, Zalkin H. Binding of cytosolic aconitase to the iron responsive element of porcine mitochondrial aconitase mRNA. Archives of Biochemistry and Biophysics. 299: 356-60. PMID 1444477 DOI: 10.1016/0003-9861(92)90287-7 |
0.359 |
|
1992 |
He B, Zalkin H. Repression of Escherichia coli purB is by a transcriptional roadblock mechanism. Journal of Bacteriology. 174: 7121-7127. PMID 1429435 DOI: 10.1128/Jb.174.22.7121-7127.1992 |
0.368 |
|
1992 |
Choi KY, Zalkin H. Structural characterization and corepressor binding of the Escherichia coli purine repressor. Journal of Bacteriology. 174: 6207-6214. PMID 1400170 DOI: 10.1128/Jb.174.19.6207-6214.1992 |
0.445 |
|
1992 |
Mäntsälä P, Zalkin H. Cloning and sequence of Bacillus subtilis purA and guaA, involved in the conversion of IMP to AMP and GMP. Journal of Bacteriology. 174: 1883-1890. PMID 1312531 DOI: 10.1128/Jb.174.6.1883-1890.1992 |
0.392 |
|
1992 |
Haeffner-Gormley L, Chen ZD, Zalkin H, Colman RF. Reaction of the nucleotide analogue 2-[(4-bromo-2,3-dioxobutyl)thio]adenosine 2',5'-bisphosphate at the coenzyme site of wild-type and mutant NADP(+)-specific glutamate dehydrogenases from Salmonella typhimurium. Archives of Biochemistry and Biophysics. 292: 179-89. PMID 1309291 DOI: 10.1016/0003-9861(92)90066-6 |
0.422 |
|
1992 |
Zalkin H, Dixon JE. De Novo Purine Nucleotide Biosynthesis Progress in Nucleic Acid Research and Molecular Biology. 42: 259-287. DOI: 10.1016/S0079-6603(08)60578-4 |
0.452 |
|
1991 |
Aimi J, Qiu H, Williams J, Zalkin H, Dixon JE. De novo purine nucleotide biosynthesis: cloning of human and avian cDNAs encoding the trifunctional glycinamide ribonucleotide synthetase-aminoimidazole ribonucleotide synthetase-glycinamide ribonucleotide transformylase by functional complementation in E. coli. Nucleic Acids Research. 18: 6665-72. PMID 2147474 DOI: 10.1093/Nar/18.22.6665 |
0.402 |
|
1991 |
Ni L, Guan K, Zalkin H, Dixon JE. De novo purine nucleotide biosynthesis: cloning, sequencing and expression of a chicken PurH cDNA encoding 5-aminoimidazole-4-carboxamide-ribonucleotide transformylase-IMP cyclohydrolase Gene. 106: 197-205. PMID 1937050 DOI: 10.1016/0378-1119(91)90199-L |
0.446 |
|
1990 |
Rolfes RJ, Zalkin H. Autoregulation of Escherichia coli purR requires two control sites downstream of the promoter. Journal of Bacteriology. 172: 5758-5766. PMID 2211510 DOI: 10.1128/Jb.172.10.5758-5766.1990 |
0.303 |
|
1990 |
Rolfes RJ, Zalkin H. Purification of the Escherichia coli purine regulon repressor and identification of corepressors. Journal of Bacteriology. 172: 5637-5642. PMID 2211500 DOI: 10.1128/Jb.172.10.5637-5642.1990 |
0.435 |
|
1990 |
He B, Shiau A, Choi KY, Zalkin H, Smith JM. Genes of the Escherichia coli pur regulon are negatively controlled by a repressor-operator interaction. Journal of Bacteriology. 172: 4555-4562. PMID 2198266 DOI: 10.1128/Jb.172.8.4555-4562.1990 |
0.418 |
|
1990 |
Mei BG, Zalkin H. Amino-terminal deletions define a glutamine amide transfer domain in glutamine phosphoribosylpyrophosphate amidotransferase and other PurF-type amidotransferases. Journal of Bacteriology. 172: 3512-3514. PMID 2188964 DOI: 10.1128/Jb.172.6.3512-3514.1990 |
0.394 |
|
1990 |
Choi KY, Zalkin H. Regulation of Escherichia coli pyrC by the purine regulon repressor protein. Journal of Bacteriology. 172: 3201-3207. PMID 1971620 DOI: 10.1128/Jb.172.6.3201-3207.1990 |
0.487 |
|
1990 |
Chen Z, Dixon JE, Zalkin H. Cloning of a chicken liver cDNA encoding 5-aminoimidazole ribonucleotide carboxylase and 5-aminoimidazole-4-N-succinocarboxamide ribonucleotide synthetase by functional complementation of Escherichia coli pur mutants Proceedings of the National Academy of Sciences of the United States of America. 87: 3097-3101. PMID 1691501 DOI: 10.1073/Pnas.87.8.3097 |
0.458 |
|
1989 |
Itakura M, Yamaoka T, Yoshikawa H, Yamashita K, Sabina R, Zalkin H, Holmes E. Controllable expression of an E. coli amidophosphoribosyltransferase (ATase) gene in ATase-deficient mammalian fibroblasts--a basic model for gene therapy Advances in Experimental Medicine and Biology. 253: 531-536. PMID 2696349 DOI: 10.1007/978-1-4684-5673-8_86 |
0.381 |
|
1989 |
Ebbole DJ, Zalkin H. Bacillus subtilis pur operon expression and regulation Journal of Bacteriology. 171: 2136-2141. PMID 2495272 DOI: 10.1128/Jb.171.4.2136-2141.1989 |
0.363 |
|
1988 |
Strauch MA, Zalkin H, Aronson AI. Characterization of the glutamyl-tRNA(Gln)-to-glutaminyl-tRNA(Gln) amidotransferase reaction of Bacillus subtilis Journal of Bacteriology. 170: 916-920. PMID 2892827 DOI: 10.1128/Jb.170.2.916-920.1988 |
0.348 |
|
1988 |
Itakura M, Yamaoka T, Yoshikawa H, Yamashita K, Sabina R, Zalkin H, Holmes E. 64 CONTROLLABLE EXPRESSION OF E.COLI AMIDOPHOSPHORIBOSYLTRANSFERASE (ATase) GENE IN ATase-DEFICIENT MAMMALIAN FIBROBLASTS-A BASIC MODEL FOR GENE THERAPY Pediatric Research. 24: 121-121. DOI: 10.1203/00006450-198807000-00088 |
0.301 |
|
1985 |
Zalkin H. [32] Glutamine amidotransferases Methods in Enzymology. 113: 263-264. PMID 4088068 DOI: 10.1016/S0076-6879(85)13035-1 |
0.414 |
|
1985 |
Zalkin H. [40] Glu-tRNAGln amidotransferase Methods in Enzymology. 113: 303-305. PMID 3937017 DOI: 10.1016/S0076-6879(85)13043-0 |
0.327 |
|
1985 |
Zalkin H. p-Aminobenzoate synthase. Methods in Enzymology. 113: 293-297. PMID 3937016 DOI: 10.1016/S0076-6879(85)13041-7 |
0.332 |
|
1985 |
Zalkin H. [36] CTP synthetase Methods in Enzymology. 113: 282-287. PMID 3911002 DOI: 10.1016/S0076-6879(85)13039-9 |
0.359 |
|
1985 |
Zalkin H. [34] GMP Synthetase Methods in Enzymology. 113: 273-278. PMID 3911001 DOI: 10.1016/S0076-6879(85)13037-5 |
0.37 |
|
1985 |
Zalkin H. [39] NAD synthetase Methods in Enzymology. 113: 297-302. PMID 3003498 DOI: 10.1016/S0076-6879(85)13042-9 |
0.395 |
|
1985 |
Zalkin H. [35] Glucosamine-6-phosphate synthase Methods in Enzymology. 113: 278-281. PMID 3003497 DOI: 10.1016/S0076-6879(85)13038-7 |
0.33 |
|
1985 |
Zalkin H. [37] Anthranilate synthase Methods in Enzymology. 113: 287-292. PMID 2935703 DOI: 10.1016/S0076-6879(85)13040-5 |
0.362 |
|
1983 |
Zalkin H. Structure, function, and regulation of amidophosphoribosyltransferase from prokaryotes Advances in Enzyme Regulation. 21: 225-237. PMID 6443594 DOI: 10.1016/0065-2571(83)90016-X |
0.462 |
|
1983 |
Bower S, Zalkin H. Chemical modification and ligand binding studies with Escherichia coli glutamate synthase. Biochemistry. 22: 1613-1620. PMID 6342664 DOI: 10.1021/Bi00276A014 |
0.428 |
|
1982 |
Bower S, Zalkin H. Modification of Serratia marcescens anthranilate synthase with pyridoxal 5'-phosphate. Archives of Biochemistry and Biophysics. 219: 121-127. PMID 6758701 DOI: 10.1016/0003-9861(82)90140-0 |
0.425 |
|
1976 |
Mäntsälä P, Zalkin H. Active Subunits of Escherichia coli Glutamate Synthase Journal of Bacteriology. 126: 539-541. PMID 770440 DOI: 10.1128/Jb.126.1.539-541.1976 |
0.333 |
|
1975 |
Reiners JJ, Zalkin H. Immunological study of anthranilate synthetase. Journal of Bacteriology. 123: 620-630. PMID 50316 DOI: 10.1128/Jb.123.2.620-630.1975 |
0.396 |
|
1975 |
Zalkin H, Murphy T. Utilization of ammonia for tryptophan synthesis Biochemical and Biophysical Research Communications. 67: 1370-1377. PMID 1034 DOI: 10.1016/0006-291X(75)90178-3 |
0.301 |
|
1970 |
Nagano H, Zalkin H. Tyrosine-inhibited 3-deoxy-d-arabino-heptulosonate 7-phosphate synthetase: Properties of the partially purified enzyme from Salmonella typhimurium Archives of Biochemistry and Biophysics. 138: 58-65. PMID 4911026 DOI: 10.1016/0003-9861(70)90284-5 |
0.393 |
|
1969 |
Schmit JC, Zalkin H. Chorismate mutase-prephenate dehydratase. Partial purification and properties of the enzyme from Salmonella typhimurium. Biochemistry. 8: 174-181. PMID 4887851 DOI: 10.1021/Bi00829A025 |
0.37 |
|
1969 |
Zalkin H, Henderson EJ. Tryptophan-mediated substrate inhibition of anthranilate-5-phosphoribosylpyrophosphate phosphoribosyltransferase. Biochemical and Biophysical Research Communications. 35: 52-8. PMID 4305273 DOI: 10.1016/0006-291X(69)90481-1 |
0.35 |
|
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