117 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
1999 Burke JR, Witmer MR, Zusi FC, Gregor KR, Davern LB, Padmanabha R, Swann RT, Smith D, Tredup JA, Micanovic R, Manly SP, Villafranca JJ, Tramposch KM. Competitive, reversible inhibition of cytosolic phospholipase A2 at the lipid-water interface by choline derivatives that partially partition into the phospholipid bilayer. The Journal of Biological Chemistry. 274: 18864-71. PMID 10383382 DOI: 10.1074/Jbc.274.27.18864  0.349
1997 Emanuele JJ, Jin H, Yanchunas J, Villafranca JJ. Evaluation of the kinetic mechanism of Escherichia coli uridine diphosphate-N-acetylmuramate:L-alanine ligase. Biochemistry. 36: 7264-71. PMID 9188728 DOI: 10.1021/Bi970266R  0.38
1997 Burke JR, Guenther MG, Witmer MR, Tredup JA, Hail ME, Micanovic R, Villafranca JJ. Presence of glycerol masks the effects of phosphorylation on the catalytic efficiency of cytosolic phospholipase A2. Archives of Biochemistry and Biophysics. 341: 177-85. PMID 9143367 DOI: 10.1006/Abbi.1997.9974  0.428
1997 Axley MJ, Fairman R, Yanchunas J, Villafranca JJ, Robertson JG. Spectroscopic properties of Escherichia coli UDP-N-acetylenolpyruvylglucosamine reductase. Biochemistry. 36: 812-22. PMID 9020779 DOI: 10.1021/Bi962260S  0.418
1996 Emanuele JJ, Jin H, Jacobson BL, Chang CY, Einspahr HM, Villafranca JJ. Kinetic and crystallographic studies of Escherichia coli UDP-N-acetylmuramate:L-alanine ligase. Protein Science : a Publication of the Protein Society. 5: 2566-74. PMID 8976565 DOI: 10.1002/Pro.5560051219  0.366
1996 Reynaldo LP, Villafranca JJ, Horrocks WD. Investigating the effects of posttranslational adenylylation on the metal binding sites of Escherichia coli glutamine synthetase using lanthanide luminescence spectroscopy. Protein Science : a Publication of the Protein Society. 5: 2532-44. PMID 8976562 DOI: 10.1002/Pro.5560051216  0.756
1996 Jin H, Emanuele JJ, Fairman R, Robertson JG, Hail ME, Ho HT, Falk PJ, Villafranca JJ. Structural studies of Escherichia coli UDP-N-acetylmuramate:L-alanine ligase. Biochemistry. 35: 1423-31. PMID 8634272 DOI: 10.1021/Bi952334K  0.395
1995 Abell LM, Schineller J, Keck PJ, Villafranca JJ. Effect of metal-ligand mutations on phosphoryl transfer reactions catalyzed by Escherichia coli glutamine synthetase. Biochemistry. 34: 16695-702. PMID 8527443 DOI: 10.1021/bi00051a018  0.315
1995 Robertson JG, Yanchunas J, Villafranca JJ. Dimerization of native and C-terminally proteolyzed p56lck tyrosine kinase. Archives of Biochemistry and Biophysics. 317: 259-66. PMID 7872793 DOI: 10.1006/Abbi.1995.1161  0.389
1995 Witmer MR, Micanovic R, Tredup J, Lin W, Hail M, Villafranca JJ. Active recombinant human cytosolic phospholipase A2 is expressed in Escherichia coli. Archives of Biochemistry and Biophysics. 318: 430-8. PMID 7733674 DOI: 10.1006/Abbi.1995.1251  0.419
1995 Dhalla AM, Yanchunas J, Ho HT, Falk PJ, Villafranca JJ, Robertson JG. Steady-state kinetic mechanism of Escherichia coli UDP-N-acetylenolpyruvylglucosamine reductase. Biochemistry. 34: 5390-402. PMID 7727397 DOI: 10.1021/Bi00016A010  0.442
1995 Burke JR, Witmer MR, Tredup J, Micanovic R, Gregor KR, Lahiri J, Tramposch KM, Villafranca JJ. Cooperativity and binding in the mechanism of cytosolic phospholipase A2. Biochemistry. 34: 15165-74. PMID 7578131 DOI: 10.1021/Bi00046A024  0.419
1994 Kulathila R, Consalvo AP, Fitzpatrick PF, Freeman JC, Snyder LM, Villafranca JJ, Merkler DJ. Bifunctional peptidylglcine alpha-amidating enzyme requires two copper atoms for maximum activity. Archives of Biochemistry and Biophysics. 311: 191-5. PMID 8185317 DOI: 10.1006/Abbi.1994.1225  0.589
1994 Robertson JG, Adams GW, Medzihradszky KF, Burlingame AL, Villafranca JJ. Complete assignment of disulfide bonds in bovine dopamine beta-hydroxylase. Biochemistry. 33: 11563-75. PMID 7918370 DOI: 10.1021/Bi00204A019  0.325
1994 Dhalla AM, Li B, Alibhai MF, Yost KJ, Hemmingsen JM, Atkins WM, Schineller J, Villafranca JJ. Regeneration of catalytic activity of glutamine synthetase mutants by chemical activation: exploration of the role of arginines 339 and 359 in activity. Protein Science : a Publication of the Protein Society. 3: 476-81. PMID 7912599 DOI: 10.1002/Pro.5560030313  0.392
1994 Alibhai M, Villafranca JJ. Kinetic and mutagenic studies of the role of the active site residues Asp-50 and Glu-327 of Escherichia coli glutamine synthetase. Biochemistry. 33: 682-6. PMID 7904829 DOI: 10.1021/Bi00169A008  0.478
1994 Witmer MR, Palmieri-Young D, Villafranca JJ. Probing the catalytic roles of n2-site glutamate residues in Escherichia coli glutamine synthetase by mutagenesis. Protein Science : a Publication of the Protein Society. 3: 1746-59. PMID 7849593 DOI: 10.1002/Pro.5560031015  0.481
1994 Witmer MR, Palmieri-Young D, Villafranca JJ. Mutagenesis of n2-site Metal-Binding Glutamate Residues in E. coli Glutamine Synthetase Techniques in Protein Chemistry. 5: 321-329. DOI: 10.1016/B978-0-12-194710-1.50041-2  0.421
1993 Freeman JC, Nayar PG, Begley TP, Villafranca JJ. Stoichiometry and spectroscopic identity of copper centers in phenoxazinone synthase: a new addition to the blue copper oxidase family. Biochemistry. 32: 4826-30. PMID 8387816 DOI: 10.1021/Bi00069A018  0.327
1993 Robertson JG, Villafranca JJ. Characterization of metal ion activation and inhibition of CTP synthetase. Biochemistry. 32: 3769-77. PMID 8385490 DOI: 10.1021/Bi00065A032  0.461
1993 Liaw SH, Villafranca JJ, Eisenberg D. A model for oxidative modification of glutamine synthetase, based on crystal structures of mutant H269N and the oxidized enzyme. Biochemistry. 32: 7999-8003. PMID 8102250 DOI: 10.1021/Bi00082A022  0.434
1993 Atkins WM, Cader BM, Hemmingsen J, Villafranca JJ. Time-resolved fluorescence and computational studies of adenylylated glutamine synthetase: analysis of intersubunit interactions. Protein Science : a Publication of the Protein Society. 2: 800-13. PMID 8098638 DOI: 10.1002/Pro.5560020510  0.372
1993 Freeman JC, Villafranca JJ, Merkler DJ. Redox cycling of enzyme-bound copper during peptide amidation Journal of the American Chemical Society. 115: 4923-4924. DOI: 10.1021/Ja00064A077  0.321
1993 Reynaldo LP, Maruyama T, Horrocks WD, Villafranca J. Tb3+ luminescence studies of Escherichia coli glutamine synthetase provides metal ion binding constants. Journal of Inorganic Biochemistry. 51: 170. DOI: 10.1016/0162-0134(93)85206-N  0.737
1992 Atkins WM, Villafranca JJ. Time-resolved fluorescence studies of tryptophan mutants of Escherichia coli glutamine synthetase: conformational analysis of intermediates and transition-state complexes. Protein Science : a Publication of the Protein Society. 1: 342-55. PMID 1363912 DOI: 10.1002/Pro.5560010306  0.373
1992 Robertson JG, Sparvero LJ, Villafranca JJ. Inactivation and covalent modification of CTP synthetase by thiourea dioxide. Protein Science : a Publication of the Protein Society. 1: 1298-307. PMID 1303749 DOI: 10.1002/Pro.5560011009  0.409
1992 Villafranca JJ, Nowak T. 2 Metal Ions at Enzyme Active Sites Enzymes. 20: 63-94. DOI: 10.1016/S1874-6047(08)60020-7  0.447
1992 Villafranca JJ, Freeman J, Kotchevar A. Mechanisms of copper enzymes Journal of Inorganic Biochemistry. 47: 35. DOI: 10.1016/0162-0134(92)84106-W  0.357
1991 Klinman JP, Dooley DM, Duine JA, Knowles PF, Mondovi B, Villafranca JJ. Status of the cofactor identity in copper oxidative enzymes. Febs Letters. 282: 1-4. PMID 1851106 DOI: 10.1016/0014-5793(91)80431-2  0.388
1991 Abell LM, Villafranca JJ. Investigation of the mechanism of phosphinothricin inactivation of Escherichia coli glutamine synthetase using rapid quench kinetic technique. Biochemistry. 30: 6135-41. PMID 1676298 DOI: 10.1021/Bi00239A008  0.469
1991 Lin WY, Dombrosky P, Atkins WM, Villafranca JJ. Terbium(III) luminescence study of tyrosine emission from Escherichia coli glutamine synthetase. Biochemistry. 30: 3427-31. PMID 1672823 DOI: 10.1021/Bi00228A011  0.399
1991 Lin WY, Eads CD, Villafranca JJ. Fluorescent probes for measuring the binding constants and distances between the metal ions bound to Escherichia coli glutamine synthetase. Biochemistry. 30: 3421-6. PMID 1672822 DOI: 10.1021/Bi00228A010  0.458
1991 McNemar LS, Lin WY, Eads CD, Atkins WM, Dombrosky P, Villafranca JJ. Terbium(III) luminescence study of the spatial relationship of tryptophan residues to the two metal ion binding sites of Escherichia coli glutamine synthetase. Biochemistry. 30: 3417-21. PMID 1672821 DOI: 10.1021/Bi00228A009  0.46
1991 Atkins WM, Stayton PS, Villafranca JJ. Time-resolved fluorescence studies of genetically engineered Escherichia coli glutamine synthetase. Effects of ATP on the tryptophan-57 loop. Biochemistry. 30: 3406-16. PMID 1672820 DOI: 10.1021/Bi00228A008  0.386
1991 Abell LM, Villafranca JJ. Effect of metal ions and adenylylation state on the internal thermodynamics of phosphoryl transfer in the Escherichia coli glutamine synthetase reaction. Biochemistry. 30: 1413-8. PMID 1671336 DOI: 10.1021/Bi00219A035  0.486
1991 Villafranca JJ. Metal-assisted catalysis Current Opinion in Structural Biology. 1: 821-825. DOI: 10.1016/0959-440X(91)90185-V  0.413
1990 Robertson JG, Desai PR, Kumar A, Farrington GK, Fitzpatrick PF, Villafranca JJ. Primary amino acid sequence of bovine dopamine beta-hydroxylase. The Journal of Biological Chemistry. 265: 1029-35. PMID 2295597  0.462
1990 Logusch EW, Walker DM, McDonald JF, Franz JE, Villafranca JJ, DiIanni CL, Colanduoni JA, Li B, Schineller JB. Inhibition of Escherichia coli glutamine synthetase by alpha- and gamma-substituted phosphinothricins. Biochemistry. 29: 366-72. PMID 1967948 DOI: 10.1021/Bi00454A009  0.435
1989 Pember SO, Johnson KA, Villafranca JJ, Benkovic SJ. Mechanistic studies on phenylalanine hydroxylase from Chromobacterium violaceum. Evidence for the formation of an enzyme-oxygen complex. Biochemistry. 28: 2124-30. PMID 2719947 DOI: 10.1021/Bi00431A024  0.39
1989 Villafranca JJ. Positional isotope exchange using phosphorus-31 nuclear magnetic resonance. Methods in Enzymology. 177: 390-403. PMID 2607989 DOI: 10.1016/0076-6879(89)77022-1  0.383
1989 Villafranca JJ. Paramagnetic probes of macromolecules. Methods in Enzymology. 177: 403-13. PMID 2575205 DOI: 10.1016/0076-6879(89)77023-3  0.393
1989 Di Ianni CL, Villafranca JJ. Identification of amino acid residues modified by pyridoxal 5'-phosphate in Escherichia coli glutamine synthetase. The Journal of Biological Chemistry. 264: 8686-91. PMID 2566607  0.301
1989 Lewis DA, Villafranca JJ. Investigation of the mechanism of CTP synthetase using rapid quench and isotope partitioning methods. Biochemistry. 28: 8454-9. PMID 2532543 DOI: 10.1021/Bi00447A027  0.361
1988 Raushel FM, Villafranca JJ. Positional isotope exchange. Crc Critical Reviews in Biochemistry. 23: 1-26. PMID 3284712  0.453
1988 Kasprzak AA, Villafranca JJ. Interactive binding between the substrate and allosteric sites of carbamoyl-phosphate synthetase. Biochemistry. 27: 8050-6. PMID 3069127 DOI: 10.1021/Bi00421A012  0.434
1988 Eads CD, LoBrutto R, Kumar A, Villafranca JJ. Identification of nonprotein ligands to the metal ions bound to glutamine synthetase. Biochemistry. 27: 165-70. PMID 2894845 DOI: 10.1021/Bi00401A025  0.378
1988 McCracken J, Desai PR, Papadopoulos NJ, Villafranca JJ, Peisach J. Electron spin-echo studies of the copper(II) binding sites in dopamine beta-hydroxylase. Biochemistry. 27: 4133-7. PMID 2843225 DOI: 10.1021/Bi00411A034  0.353
1988 Wang HC, Ciskanik L, Dunaway-Mariano D, von der Saal W, Villafranca JJ. Investigations of the partial reactions catalyzed by pyruvate phosphate dikinase. Biochemistry. 27: 625-33. PMID 2831971 DOI: 10.1021/Bi00402A020  0.373
1988 McCracken J, Pember S, Benkovic SJ, Villafranca JJ, Miller RJ, Peisach J. Electron spin-echo studies of the copper binding site in phenylalanine hydroxylase from Chromobacterium violaceum Journal of the American Chemical Society. 110: 1069-1074. DOI: 10.1021/Ja00212A012  0.327
1988 Flory DR, Villafranca JJ. Characterization of 3-phenylpropenes as mechanism-based inhibitors of dopamine β-hydroxylase Bioorganic Chemistry. 16: 232-244. DOI: 10.1016/0045-2068(88)90012-0  0.327
1987 Fitzpatrick PF, Villafranca JJ. Mechanism-based inhibitors of dopamine beta-hydroxylase. Archives of Biochemistry and Biophysics. 257: 231-50. PMID 3662525 DOI: 10.1016/0003-9861(87)90563-7  0.483
1987 Colombo G, Papadopoulos NJ, Ash DE, Villafranca JJ. Characterization of highly purified dopamine beta-hydroxylase. Archives of Biochemistry and Biophysics. 252: 71-80. PMID 3101599 DOI: 10.1016/0003-9861(87)90009-9  0.44
1987 Colanduoni J, Nissan R, Villafranca JJ. Studies of the mechanism of glutamine synthetase utilizing pH-dependent behavior in catalysis and binding. The Journal of Biological Chemistry. 262: 3037-43. PMID 2880845  0.335
1987 Eads CD, Villafranca JJ. Interaction among substrates, inhibitors and Mn2+ bound to glutamine synthetase as studied by NMR relaxation rate measurements. Archives of Biochemistry and Biophysics. 252: 382-7. PMID 2880564 DOI: 10.1016/0003-9861(87)90044-0  0.466
1987 Pember SO, Benkovic SJ, Villafranca JJ, Pasenkiewicz-Gierula M, Antholine WE. Adduct formation between the cupric site of phenylalanine hydroxylase from Chromobacterium violaceum and 6,7-dimethyltetrahydropterin. Biochemistry. 26: 4477-83. PMID 2822093 DOI: 10.1021/Bi00388A045  0.404
1986 Fitzpatrick PF, Harpel MR, Villafranca JJ. Use of alternate substrates to probe the order of substrate addition to dopamine beta-hydroxylase. Archives of Biochemistry and Biophysics. 249: 70-5. PMID 3740855 DOI: 10.1016/0003-9861(86)90561-8  0.581
1986 Pember SO, Villafranca JJ, Benkovic SJ. Phenylalanine hydroxylase from Chromobacterium violaceum is a copper-containing monooxygenase. Kinetics of the reductive activation of the enzyme. Biochemistry. 25: 6611-9. PMID 3024714 DOI: 10.1021/Bi00369A042  0.426
1986 Fitzpatrick PF, Villafranca JJ. The mechanism of inactivation of dopamine beta-hydroxylase by hydrazines. The Journal of Biological Chemistry. 261: 4510-8. PMID 3007460  0.533
1986 DiIanni CL, Colanduoni JA, Villafranca JJ. Inactivation of Escherichia coli glutamine synthetase by thiourea trioxide Bioorganic Chemistry. 14: 242-248. DOI: 10.1016/0045-2068(86)90035-0  0.403
1986 Colanduoni JA, Villafranca JJ. Inhibition of Escherichia coli glutamine synthetase by phosphinothricin Bioorganic Chemistry. 14: 163-169. DOI: 10.1016/0045-2068(86)90026-X  0.392
1985 Fitzpatrick PF, Flory DR, Villafranca JJ. 3-Phenylpropenes as mechanism-based inhibitors of dopamine beta-hydroxylase: evidence for a radical mechanism. Biochemistry. 24: 2108-14. PMID 3995005 DOI: 10.1021/Bi00330A003  0.555
1985 von der Saal W, Crysler CS, Villafranca JJ. Positional isotope exchange and kinetic experiments with Escherichia coli guanosine-5'-monophosphate synthetase. Biochemistry. 24: 5343-50. PMID 3907701 DOI: 10.1021/Bi00341A011  0.369
1985 Eads CD, Mulqueen P, Horrocks WD, Villafranca JJ. Comparative study of glutamine synthetase bound lanthanide(III) ions using NMR relaxation and lanthanide(III) luminescence techniques. Biochemistry. 24: 1221-6. PMID 2869779 DOI: 10.1021/Bi00326A025  0.429
1985 Villafranca JJ, Ransom SC, Gibbs EJ. Biophysical studies of Escherichia coli glutamine synthetase. Current Topics in Cellular Regulation. 26: 207-19. PMID 2866935 DOI: 10.1016/B978-0-12-152826-3.50023-1  0.494
1985 Clark DD, Villafranca JJ. Isotope-exchange enhancement studies of Escherichia coli glutamine synthetase. Biochemistry. 24: 5147-52. PMID 2866792 DOI: 10.1021/Bi00340A029  0.441
1985 Ransom SC, Colanduoni JA, Eads CD, Gibbs EJ, Villafranca JJ. Affinity labeling of Escherichia coli glutamine synthetase by beta, gamma-Cr(III)(H2O)4ATP. Biochemical and Biophysical Research Communications. 130: 418-25. PMID 2862863 DOI: 10.1016/0006-291X(85)90433-4  0.455
1985 Colanduoni JA, Villafranca JJ. Labeling of a specific arginine residue at the active site of glutamine synthetase (E.coli). Biochemical and Biophysical Research Communications. 126: 412-8. PMID 2857563 DOI: 10.1016/0006-291X(85)90621-7  0.454
1985 Kasprzyk PG, Whalen-Pederson E, Anderson PM, Villafranca JJ. Spatial relationships among the active and allosteric sites of carbamoyl-phosphate synthetase Bioorganic Chemistry. 13: 98-109. DOI: 10.1016/0045-2068(85)90012-4  0.418
1985 Fitzpatrick PF, Villafranca JJ. Mechanism-based inhibitors of dopamine β-hydroxylase containing acetylenic or cyclopropyl groups Journal of the American Chemical Society. 107: 5022-5023. DOI: 10.1002/Chin.198549099  0.489
1985 Fitzpatrick PF, Villafranca JJ. Mechanism-based inhibitors for dopamine β-hydroxylase containing vinyl, acetylenic, or cyclopropyl substituents: Evidence for a radical mechanism Federation Proceedings. 44: No. 5777.  0.439
1984 Rajashekhar B, Fitzpatrick PF, Colombo G, Villafranca JJ. Synthesis of several 2-substituted 3-(p-hydroxyphenyl)-1-propenes and their characterization as mechanism-based inhibitors of dopamine beta-hydroxylase. The Journal of Biological Chemistry. 259: 6925-30. PMID 6547138  0.511
1984 Colombo G, Rajashekhar B, Giedroc DP, Villafranca JJ. Mechanism-based inhibitors of dopamine beta-hydroxylase: inhibition by 2-bromo-3-(p-hydroxyphenyl)-1-propene. Biochemistry. 23: 3590-8. PMID 6477886 DOI: 10.1021/Bi00311A004  0.393
1984 Gibbs EJ, Ransom SC, Cuppett S, Villafranca JJ. Mn-Mn interaction in adenylylated and unadenylylated glutamine synthetase. Biochemical and Biophysical Research Communications. 120: 939-45. PMID 6145412 DOI: 10.1016/S0006-291X(84)80197-7  0.43
1984 Knight WB, Dunaway-Mariano D, Ransom SC, Villafranca JJ. Investigations of the metal ion-binding sites of yeast inorganic pyrophosphatase. The Journal of Biological Chemistry. 259: 2886-95. PMID 6142048  0.367
1983 Pasternack RF, Gibbs EJ, Villafranca JJ. Interactions of porphyrins with nucleic acids. Biochemistry. 22: 2406-14. PMID 6860636 DOI: 10.1021/Bi00279A016  0.336
1983 Kasprzyk PG, Anderson PM, Villafranca JJ. Fluorescence energy transfer experiments with Escherichia coli carbamoyl-phosphate synthetase. Biochemistry. 22: 1877-82. PMID 6342671 DOI: 10.1021/Bi00277A021  0.37
1983 Raushel FM, Anderson PM, Villafranca JJ. A nuclear magnetic resonance study of the topography of binding sites of Escherichia coli carbamoyl-phosphate synthetase. Biochemistry. 22: 1872-6. PMID 6342670 DOI: 10.1021/Bi00277A020  0.6
1983 Viola RE, Shaw RW, Ransom SC, Villafranca JJ. Solvent proton relaxation studies of cytochrome c oxidase solutions. Archives of Biochemistry and Biophysics. 220: 106-15. PMID 6299195 DOI: 10.1016/0003-9861(83)90392-2  0.654
1983 Villafranca J, Ransom S, Gibbs E, Knight W, Dunaway-Mariano D. Metalmetal interactions in enzymes: EPR and NMR investigations Inorganica Chimica Acta. 79: 18. DOI: 10.1016/S0020-1693(00)95036-9  0.499
1982 Villafranca JJ, Raushel FM. The monovalent cation site of pyruvate kinase and other enzymes: NMR investigations. Federation Proceedings. 41: 2961-5. PMID 7140996  0.553
1982 Meek TD, Johnson KA, Villafranca JJ. Escherichia coli glutamine synthetase. Determination of rate-limiting steps by rapid-quench and isotope partitioning experiments. Biochemistry. 21: 2158-67. PMID 6124275 DOI: 10.1021/Bi00538A027  0.324
1981 Cunningham BA, Raushel FM, Villafranca JJ, Benkovic SJ. Distances between structural metal ion, substrates, and allosteric modifier of fructose bisphosphatase. Biochemistry. 20: 359-62. PMID 6258638 DOI: 10.1021/Bi00505A020  0.599
1980 Raushel FM, Villafranca JJ. A multinuclear nuclear magnetic resonance study of the monovalent-divalent cation sites of pyruvate kinase. Biochemistry. 19: 5481-5. PMID 7193048 DOI: 10.1021/Bi00565A003  0.61
1980 Raushel FM, Villafranca JJ. Phosphorus-31 nuclear magnetic resonance application to positional isotope exchange reactions catalyzed by Escherichia coli carbamoyl-phosphate synthetase: analysis of forward and reverse enzymatic reactions. Biochemistry. 19: 3170-4. PMID 6996701 DOI: 10.1021/Bi00555A009  0.508
1980 Pillai RP, Marshall M, Villafranca JJ. Substrate and metal ion binding to carbamate kinase: NMR and EPR studies. Archives of Biochemistry and Biophysics. 199: 21-7. PMID 6243908 DOI: 10.1016/0003-9861(80)90251-9  0.442
1980 Pillai RP, Marshall M, Villafranca JJ. Modification of an essential arginine of carbamate kinase. Archives of Biochemistry and Biophysics. 199: 16-20. PMID 6243907 DOI: 10.1016/0003-9861(80)90250-7  0.469
1980 Meek TD, Villafranca JJ. Kinetic mechanism of Escherichia coli glutamine synthetase. Biochemistry. 19: 5513-9. PMID 6109545 DOI: 10.1021/Bi00565A008  0.324
1980 Villafranca JJ, Raushel FM. Biophysical applications of NMR to phosphoryl transfer enzymes and metal nuclei of metalloproteins. Annual Review of Biophysics and Bioengineering. 9: 363-92. PMID 6104944 DOI: 10.1146/annurev.bb.09.060180.002051  0.513
1980 Pillai RP, Raushel FM, Villafranca JJ. Stereochemistry of binding of thiophosphate analogs of ATP and ADP to carbamate kinase, glutamine synthetase, and carbamoyl-phosphate synthetase. Archives of Biochemistry and Biophysics. 199: 7-15. PMID 6101943 DOI: 10.1016/0003-9861(80)90249-0  0.589
1980 Raushel FM, Villafranca JJ. A direct NMR method for the determination of correlation times in enzyme complexes involving monovalent cations and paramagnetic centers Journal of the American Chemical Society. 102: 6618-6619. DOI: 10.1021/Ja00541A067  0.555
1979 Raushel FM, Rawding CJ, Anderson PM, Villafranca JJ. Paramagnetic probes for carbamoyl-phosphate synthetase: metal ion binding studies and preparation of nitroxide spin-labeled derivatives. Biochemistry. 18: 5562-6. PMID 229896 DOI: 10.1021/Bi00592A006  0.576
1979 Raushel FM, Villafranca JJ. Determination of rate-limiting steps of Escherichia coli carbamoyl-phosphate synthase. Rapid quench and isotope partitioning experiments. Biochemistry. 18: 3424-9. PMID 223631 DOI: 10.1021/Bi00582A033  0.536
1979 Villafranca JJ, Balakrishnan MS. Glutamine synthetase: biophysical studies of structure-function-control relationships. The International Journal of Biochemistry. 10: 565-71. PMID 38153 DOI: 10.1016/0020-711X(79)90016-8  0.493
1979 Viola RE, Hartzell CR, Villafranca JJ. Copper(II) complexes of carnosine, glycylglycine, and glycylglycine-imidazole mixtures Journal of Inorganic Biochemistry. 10: 293-307. DOI: 10.1016/S0162-0134(00)80196-8  0.589
1978 Raushel FM, Anderson PM, Villafranca JJ. Kinetic mechanism of Escherichia coli carbamoyl-phosphate synthetase. Biochemistry. 17: 5587-91. PMID 215204 DOI: 10.1021/Bi00619A001  0.575
1978 Raushel FM, Anderson PM, Villafranca JJ. Carbamyl phosphate synthetase of Escherichia coli uses the same diastereomer of adenosine-5'-[2-thiotriphosphate] at both ATP sites. The Journal of Biological Chemistry. 253: 6627-9. PMID 211124  0.5
1978 Balakrishnan MS, Sharp TR, Villafranca JJ. Kinetic studies of 18O exchange from inorganic phosphate catalyzed by Mg2+-activated unadenylylated glutamine synthetase (E. coli w). Biochemical and Biophysical Research Communications. 85: 991-8. PMID 32887 DOI: 10.1016/0006-291X(78)90641-1  0.336
1978 Balakrishnan MS, Villafranca JJ. Distance determinations between the metal ion sites of Escherichia coli glutamine synthetase by electron paramagnetic resonance using Cr(III)--nucleotides as paramagnetic substrate analogues. Biochemistry. 17: 3531-8. PMID 28753 DOI: 10.1021/Bi00610A017  0.435
1977 Villafranca JJ, Levy RS, Kernich J, Vickroy T. TPN and Mn-isocitrate protect isocitrate dehydrogenase against inactivation but increase the number of modified sulfhydryl groups. Biochemical and Biophysical Research Communications. 77: 457-63. PMID 20091 DOI: 10.1016/S0006-291X(77)80002-8  0.404
1977 Balakrishnan MS, Villafranca JJ, Brenchley JE. Glutamine synthetase from Salmonella typhimurium: manganese(II), substrate, and inhibitor interaction with the unadenylylated enzyme. Archives of Biochemistry and Biophysics. 181: 603-15. PMID 20051 DOI: 10.1016/0003-9861(77)90267-3  0.49
1977 Levy RS, Villafranca JJ. Structure-function relationships in TPN-dependent isocitrate dehydrogenase. II. Determination of the paramagnetic relaxation rates of water protons in complexes of enzyme, Mn(II), substrates, cofactors, and inhibitors. Biochemistry. 16: 3301-9. PMID 19045 DOI: 10.1021/Bi00634A004  0.392
1977 Levy RS, Villafranca JJ. Structure-function relationships in TPN-dependent isocitrate dehydrogenase. I. Electron paramagnetic resonance studies of the interaction of enzyme-bound Mn(II) with substrates, cofactors, and substrate analogues. Biochemistry. 16: 3293-31. PMID 19044 DOI: 10.1021/Bi00634A003  0.456
1977 Villafranca JJ, Balakrishnan MS, Wedler FC. Determination of metal-metal distances in E. coli glutamine synthetase by EPR. Biochemical and Biophysical Research Communications. 75: 464-71. PMID 15566 DOI: 10.1016/0006-291X(77)91065-8  0.447
1976 Villafranca JJ, Ash DE, Wedler FC. Manganese(II) and substrate interaction with unadenylylated glutamine synthetase (Escherichia coli w). I. Temperature and frequency dependent nuclear magnetic resonance studies. Biochemistry. 15: 536-43. PMID 766828 DOI: 10.1021/Bi00648A013  0.484
1976 Villafranca JJ, Pillai RP, Woodworth RC. Magnetic resonance studies of Mn(II)-, Mn(III)-, and Fe(III)-conalbumin complexes. Bioinorganic Chemistry. 6: 233-45. PMID 233741 DOI: 10.1016/S0006-3061(00)80230-6  0.361
1976 Villafranca JJ, Ash DE, Wedler FC. Manganese (II) and substrate interaction with unadenylylated glutamine synthetase (Escherichia coli w). II. Electron paramagnetic resonance and nuclear magnetic resonance studies of enzyme-bound manganese(II) with substrates and a potential transition-state analogue, methionine sulfoximine. Biochemistry. 15: 544-53. PMID 3200 DOI: 10.1021/Bi00648A014  0.463
1976 Viola RE, Hartzell CR, Villafranca JJ. Temperature Dependence of the EPR Spectrum of Copper(II)- carnosine Journal of Coordination Chemistry. 6: 119-121. DOI: 10.1080/00958977608079895  0.551
1975 Villafranca JJ, Ash DE, Wedler FC. Evidence for methionine sulfoximine as a transition-state analog for glutamine synthetase from NMR and EPR data Biochemical and Biophysical Research Communications. 66: 1003-1010. PMID 241345 DOI: 10.1016/0006-291X(75)90739-1  0.492
1975 Libby CB, Frey WA, Villafranca JJ, Benkovic SJ. Kinetic and binding studies of Mn (II) and fructose 1,6-bisphosphate with rabbit liver hexosebisphosphatase. The Journal of Biological Chemistry. 250: 7564-73. PMID 240832  0.415
1974 Villafranca JJ, Platus E. Fluorocitrate inhibition of aconitase. Reversibility of the inactivation. Biochemical and Biophysical Research Communications. 55: 1197-207. PMID 4771993 DOI: 10.1016/S0006-291X(73)80021-X  0.372
1974 Villafranca JJ, Viola RE. Proton nuclear magnetic resonance studies of the manganese (II) binding site of concanavalin A. Effect of saccharides on the solvent relaxation rates. Archives of Biochemistry and Biophysics. 165: 51-9. PMID 4441085 DOI: 10.1016/0003-9861(74)90140-4  0.6
1974 Villafranca JJ, Viola RE. The use of 13C spin lattice relaxation times to study the interaction of alpha-methyl-D-glucopyranoside with concanavalin A. Archives of Biochemistry and Biophysics. 160: 465-8. PMID 4364767 DOI: 10.1016/0003-9861(74)90422-6  0.581
1974 Benkovic SJ, Frey WA, Libby CB, Villafranca JJ. The role of tryptophan in neutral fructose diphosphatase. Biochemical and Biophysical Research Communications. 57: 196-203. PMID 4364002 DOI: 10.1016/S0006-291X(74)80376-1  0.364
1974 Villafranca JJ, Colman RF. Frequency and temperature dependence of the proton relaxation rates of solvent and substrate interaction with isocitrate dehydrogenase bound Mn(II). Biochemistry. 13: 1152-60. PMID 4360780 DOI: 10.1021/Bi00703A016  0.341
1974 Villafranca JJ, Wedler FC. Nuclear magnetic resonance study of the complexes of manganese(II) and fully adenylated glutamine synthetase (Escherichia coli W). Frequency, temperature, and substrate dependence of water proton relaxation rates. Biochemistry. 13: 3286-91. PMID 4152181 DOI: 10.1021/Bi00713A017  0.34
1973 Benkovic SJ, Villafranca JJ, Kleinschuster JJ. 31 P and 13 C nmr measurements of a fructose-1-phosphate, Mn (II) and fructose 1,6-diphosphatase complex. Archives of Biochemistry and Biophysics. 155: 458-63. PMID 4350254 DOI: 10.1016/0003-9861(73)90137-9  0.349
1971 Villafranca JJ, Axelrod B. Heptulose synthesis from nonphosphorylated aldoses and ketoses by spinach transketolase. The Journal of Biological Chemistry. 246: 3126-31. PMID 5574390  0.414
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