| | This journal provides immediate access to some articles. Research Articles A Commitment to Excellence H. Neurath Protein Sci. 1996 June; 5(6): 989–990. PMCID: PMC2143448 Protein folding for realists: a timeless phenomenon. D. Shortle, Y. Wang, J. R. Gillespie, and J. O. Wrabl Protein Sci. 1996 June; 5(6): 991–1000. PMCID: PMC2143424 Derivation of 3D coordinate templates for searching structural databases: application to Ser-His-Asp catalytic triads in the serine proteinases and lipases. A. C. Wallace, R. A. Laskowski, and J. M. Thornton Protein Sci. 1996 June; 5(6): 1001–1013. PMCID: PMC2143436 An unusual route to thermostability disclosed by the comparison of Thermus thermophilus and Escherichia coli inorganic pyrophosphatases. T. Salminen, A. Teplyakov, J. Kankare, B. S. Cooperman, R. Lahti, and A. Goldman Protein Sci. 1996 June; 5(6): 1014–1025. PMCID: PMC2143442 Mobile unnatural amino acid side chains in the core of staphylococcal nuclease. R. Wynn, P. C. Harkins, F. M. Richards, and R. O. Fox Protein Sci. 1996 June; 5(6): 1026–1031. PMCID: PMC2143447 Tyrosine 8 contributes to catalysis but is not required for activity of rat liver glutathione S-transferase, 1-1. J. Wang, J. J. Barycki, and R. F. Colman Protein Sci. 1996 June; 5(6): 1032–1042. PMCID: PMC2143441 Self-consistently optimized statistical mechanical energy functions for sequence structure alignment. K. K. Koretke, Z. Luthey-Schulten, and P. G. Wolynes Protein Sci. 1996 June; 5(6): 1043–1059. PMCID: PMC2143433 Direct evidence for a two-state protein unfolding transition from hydrogen-deuterium exchange, mass spectrometry, and NMR. Q. Yi and D. Baker Protein Sci. 1996 June; 5(6): 1060–1066. PMCID: PMC2143434 Improving the quality of NMR and crystallographic protein structures by means of a conformational database potential derived from structure databases. J. Kuszewski, A. M. Gronenborn, and G. M. Clore Protein Sci. 1996 June; 5(6): 1067–1080. PMCID: PMC2143426 The heme redox center of chloroplast cytochrome f is linked to a buried five-water chain. S. E. Martinez, D. Huang, M. Ponomarev, W. A. Cramer, and J. L. Smith Protein Sci. 1996 June; 5(6): 1081–1092. PMCID: PMC2143431 The proteins encoded by the rbs operon of Escherichia coli: I. Overproduction, purification, characterization, and functional analysis of RbsA. C. F. Barroga, H. Zhang, N. Wajih, J. H. Bouyer, and M. A. Hermodson Protein Sci. 1996 June; 5(6): 1093–1099. PMCID: PMC2143435 The proteins encoded by the rbs operon of Escherichia coli: II. Use of chimeric protein constructs to isolate and characterize RbsC. J. Zaitseva, H. Zhang, R. A. Binnie, and M. Hermodson Protein Sci. 1996 June; 5(6): 1100–1107. PMCID: PMC2143443 Intrinsic tryptophans of CRABPI as probes of structure and folding. P. L. Clark, Z. P. Liu, J. Zhang, and L. M. Gierasch Protein Sci. 1996 June; 5(6): 1108–1117. PMCID: PMC2143446 Secondary structure and NMR assignments of Bacillus circulans xylanase. L. A. Plesniak, W. W. Wakarchuk, and L. P. McIntosh Protein Sci. 1996 June; 5(6): 1118–1135. PMCID: PMC2143425 Invariant glycines and prolines flanking in loops the strand beta 2 of various (alpha/beta)8-barrel enzymes: a hidden homology? S. Janecek Protein Sci. 1996 June; 5(6): 1136–1143. PMCID: PMC2143438 Substrate-induced conformational changes in yeast 3-phosphoglycerate kinase monitored by fluorescence of single tryptophan probes. C. W. Cheung and M. T. Mas Protein Sci. 1996 June; 5(6): 1144–1149. PMCID: PMC2143445 A natural variant of type I antifreeze protein with four ice-binding repeats is a particularly potent antifreeze. H. Chao, R. S. Hodges, C. M. Kay, S. Y. Gauthier, and P. L. Davies Protein Sci. 1996 June; 5(6): 1150–1156. PMCID: PMC2143429 Microheterogeneity of human filaggrin: analysis of a complex peptide mixture using mass spectrometry. C. D. Thulin, J. A. Taylor, and K. A. Walsh Protein Sci. 1996 June; 5(6): 1157–1164. PMCID: PMC2143439 In vitro methionine oxidation of Escherichia coli-derived human stem cell factor: effects on the molecular structure, biological activity, and dimerization. Y. R. Hsu, L. O. Narhi, C. Spahr, K. E. Langley, and H. S. Lu Protein Sci. 1996 June; 5(6): 1165–1173. PMCID: PMC2143427 Crystal structure of two new bifunctional nonsubstrate type thrombin inhibitors complexed with human alpha-thrombin. J. Féthière, Y. Tsuda, R. Coulombe, Y. Konishi, and M. Cygler Protein Sci. 1996 June; 5(6): 1174–1183. PMCID: PMC2143430 Tumor marker disaccharide D-Gal-beta 1, 3-GalNAc complexed to heat-labile enterotoxin from Escherichia coli. F. van den Akker, E. Steensma, and W. G. Hol Protein Sci. 1996 June; 5(6): 1184–1188. PMCID: PMC2143437 Preliminary crystallographic analysis of the oxidized form of a two mono-nuclear iron centres protein from Desulfovibrio desulfuricans ATCC 27774. A. V. Coelho, P. M. Matias, M. A. Carrondo, P. Tavares, J. J. Moura, I. Moura, V. Fülop, J. Hajdu, and J. Le Gall Protein Sci. 1996 June; 5(6): 1189–1191. PMCID: PMC2143428 Subcloning of a DNA fragment encoding a single cohesin domain of the Clostridium thermocellum cellulosome-integrating protein CipA: purification, crystallization, and preliminary diffraction analysis of the encoded polypeptide. P. Béguin, O. Raynaud, M. K. Chaveroche, A. Dridi, and P. M. Alzari Protein Sci. 1996 June; 5(6): 1192–1194. PMCID: PMC2143444 Flexibility of DNA binding domain of trp repressor required for recognition of different operator sequences. M. R. Gryk, O. Jardetzky, L. S. Klig, and C. Yanofsky Protein Sci. 1996 June; 5(6): 1195–1197. PMCID: PMC2143432 Crystallization of the A alpha subunit of protein phosphatase 2A. M. O. Skidmore, M. R. Sawaya, S. Parkin, B. Rupp, H. Hope, S. J. Everse, and G. Walter Protein Sci. 1996 June; 5(6): 1198–1200. PMCID: PMC2143440 In search of dihydrofolate reductase. F. M. Huennekens Protein Sci. 1996 June; 5(6): 1201–1208. 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