THE ACTIVATION PEPTIDE (UP TO ARG 715) OF CTGC IS TWO RESIDUES SHORTER (701-712+715) THAN THE ...THE ACTIVATION PEPTIDE (UP TO ARG 715) OF CTGC IS TWO RESIDUES SHORTER (701-712+715) THAN THE CORRESPONDING PART IN CTGA, THE ACTIVATION PEPTIDE OF BPE IS 4 RESIDUES SHORTER AND STARTS AT COUNT 405 (405 - 415).
配列の詳細
FOR RATIONALITY REASONS AND IN ORDER TO PRESERVE THE CHYMOTRYPSINOGEN A (CTGA) NUMBERING FOR BOTH ...FOR RATIONALITY REASONS AND IN ORDER TO PRESERVE THE CHYMOTRYPSINOGEN A (CTGA) NUMBERING FOR BOTH SERINE PROPROTEINASES, 400 COUNTS AND THE CHAIN IDENTIFIER C HAVE BEEN ADDED TO THE (EQUIVALENT) RESIDUES OF PROPROTEINASE E (BPE) AND 700 PLUS THE CHAIN IDENTIFIER D HAVE BEEN ADDED TO THE CHYMOTRYPSINOGEN C (CTGC) RESIDUES. THEREFORE, THE CATALYTIC TRIAD SER 195, ASP 102, AND HIS 57 OF CHYMOTRYPSINOGEN A IS EQUIVALENT TO SER C 595, ASP C 502, AND HIS C 457 OF BPE AND SER D 895, ASP D 802, AND HIS D 757 OF CTGC. THE PROCARBOXYPEPTIDASE A(PCPA) NUMBERING HAS BEEN TAKEN FROM PDB ENTRY 1PCA (GUASCH ET AL., 1992), THAT IS, THE RESIDUES FROM THE PCPA ACTIVATION PEPTIDE HAVE BEEN LABELED A 4 TO A 99 (WITH A TWO RESIDUE INSERTION AT POSITIONS 34B AND 34C, AND A 4-RESIDUE DELETION [A 43 - A 46]).
解像度: 2.35→6 Å 詳細: NO PROPER DENSITY WAS OBSERVED FOR SEGMENTS 712 - 716, 846 - 847, AND 888 - 889 OF CTGC. THESE 16 RESIDUES AND SOME SURFACE-LOCATED SIDE-CHAINS (709, 710, 711, 770, 810, 848, 892, 943) HAVE ...詳細: NO PROPER DENSITY WAS OBSERVED FOR SEGMENTS 712 - 716, 846 - 847, AND 888 - 889 OF CTGC. THESE 16 RESIDUES AND SOME SURFACE-LOCATED SIDE-CHAINS (709, 710, 711, 770, 810, 848, 892, 943) HAVE BEEN TENTATIVELY TRACED IN ORDER TO PRESERVE CHAIN CONTINUITY AND SET TO ZERO OCCUPANCY (B = 20.0). NO PROPER DENSITY WAS OBSERVED FOR SEGMENT 405 - 409 OF BPE. THIS SEGMENT HAS NOT BEEN TRACED NOR INCLUDED IN THIS MODEL.