HEADER HYDROLASE/PEPTIDE 04-SEP-90 2GCT TITLE STRUCTURE OF GAMMA-CHYMOTRYPSIN IN THE RANGE PH 2.0 TO PH 10.5 TITLE 2 SUGGESTS THAT GAMMA-CHYMOTRYPSIN IS A COVALENT ACYL-ENZYME ADDUCT AT TITLE 3 LOW PH COMPND MOL_ID: 1; COMPND 2 MOLECULE: GAMMA-CHYMOTRYPSIN A; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.1; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: GAMMA-CHYMOTRYPSIN A; COMPND 7 CHAIN: B; COMPND 8 EC: 3.4.21.1; COMPND 9 MOL_ID: 3; COMPND 10 MOLECULE: GAMMA-CHYMOTRYPSIN A; COMPND 11 CHAIN: C; COMPND 12 EC: 3.4.21.1; COMPND 13 MOL_ID: 4; COMPND 14 MOLECULE: TETRAPEPTIDE ADDUCT; COMPND 15 CHAIN: D; COMPND 16 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_TAXID: 9913; SOURCE 4 MOL_ID: 2; SOURCE 5 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 6 ORGANISM_TAXID: 9913; SOURCE 7 MOL_ID: 3; SOURCE 8 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 9 ORGANISM_TAXID: 9913; SOURCE 10 MOL_ID: 4 KEYWDS HYDROLASE, SERINE PROTEINASE, HYDROLASE-PEPTIDE COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR M.M.DIXON,B.W.MATTHEWS REVDAT 5 05-JUN-24 2GCT 1 REMARK LINK REVDAT 4 13-JUL-11 2GCT 1 VERSN REVDAT 3 19-MAY-09 2GCT 1 REMARK REVDAT 2 24-FEB-09 2GCT 1 VERSN REVDAT 1 15-OCT-91 2GCT 0 JRNL AUTH M.M.DIXON,R.G.BRENNAN,B.W.MATTHEWS JRNL TITL STRUCTURE OF GAMMA-CHYMOTRYPSIN IN THE RANGE PH 2.0 TO PH JRNL TITL 2 10.5 SUGGESTS THAT GAMMA-CHYMOTRYPSIN IS A COVALENT JRNL TITL 3 ACYL-ENZYME ADDUCT AT LOW PH. JRNL REF INT.J.BIOL.MACROMOL. V. 13 89 1991 JRNL REFN ISSN 0141-8130 JRNL PMID 1888717 JRNL DOI 10.1016/0141-8130(91)90054-X REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.M.DIXON,B.W.MATTHEWS REMARK 1 TITL IS GAMMA-CHYMOTRYPSIN A TETRAPEPTIDE ACYL-ENZYME ADDUCT OF REMARK 1 TITL 2 GAMMA-CHYMOTRYPSIN? REMARK 1 REF BIOCHEMISTRY V. 28 7033 1989 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : NULL REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.169 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1766 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 131 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.019 ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : 3.100 ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : 18.100; 0.000 ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; 0.000 ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : 0.020 ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : 0.021 ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; 0.000 ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : NULL REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2GCT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000178129. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 285 REMARK 200 PH : 2.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : FILM REMARK 200 DETECTOR MANUFACTURER : KODAK REMARK 200 INTENSITY-INTEGRATION SOFTWARE : OSCTST REMARK 200 DATA SCALING SOFTWARE : AGROVATA/ROTAVATE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.19 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 2.0 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 42 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 34.90000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 34.90000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 49.05000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 34.90000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 34.90000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 49.05000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 34.90000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.90000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 49.05000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 34.90000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.90000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 49.05000 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: OCTAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: OCTAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 18540 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17420 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -205.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 2 -1.000000 0.000000 0.000000 69.80000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 400 REMARK 400 COMPOUND REMARK 400 THE GAMMA CHYMOTRYPSIN MOLECULE IS COMPRISED OF THREE REMARK 400 POLYPEPTIDE CHAINS WHICH ARE DERIVED FROM THE ZYMOGEN OF REMARK 400 THIS ENZYME BY EXCISION OF RESIDUES 14-15 AND 147-148. TO REMARK 400 ASSIGN SEPARATE CHAIN IDENTIFIERS TO THE THREE CHAINS REMARK 400 WOULD OBSCURE THIS RELATIONSHIP AND SO THIS WAS NOT DONE. REMARK 400 CHAIN TERMINATOR RECORDS WERE INSERTED AFTER RESIDUES 146 REMARK 400 AND 245 TO INDICATE EXPLICIT TERMINI AND THE SPECIAL CODE REMARK 400 EXC WAS USED IN THE SEQRES RECORDS TO DENOTE THE EXCISIONS. REMARK 400 RESIDUES 11 THROUGH 13 AND 149 THROUGH 150 ARE NOT VISIBLE REMARK 400 IN THE ELECTRON DENSITY MAP AND SO ARE OMITTED. IN THE REMARK 400 ABSENCE OF RESIDUE 13 THE TER RECORD WHICH WOULD HAVE REMARK 400 APPEARED AFTER RESIDUE 13 IS ALSO OMITTED. REMARK 400 REMARK 400 RESIDUES B 500 - B 504 ARE A TETRAPEPTIDE BOUND IN THE REMARK 400 ACTIVE SITE, COVALENTLY LINKED TO OG OF SER 195 AS AN ACYL REMARK 400 ADDUCT. IT IS, PRESUMABLY, AN AUTOLYTIC CLEAVAGE PRODUCT. REMARK 400 THE EXACT IDENTITY OF THE RESIDUES IS UNCERTAIN AS THE SIDE REMARK 400 CHAINS SEEM TO BE DISORDERED. THE ATOM IDENTIFIED AS REMARK 400 C UNK B 500 IS ACTUALLY THE CARBONYL CARBON OF AN REMARK 400 UNIDENTIFIED AMINO ACID NOT VISIBLE IN THE ELECTRON DENSITY REMARK 400 MAP. REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 GLY A 12 REMARK 465 LEU A 13 REMARK 465 ALA C 149 REMARK 465 ASN C 150 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 SER A 11 CA C O CB OG REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 20 O HOH B 624 5555 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU B 21 CD GLU B 21 OE2 0.072 REMARK 500 GLU B 70 CD GLU B 70 OE2 0.073 REMARK 500 ARG C 154 NE ARG C 154 CZ 0.081 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 PRO A 8 N - CA - CB ANGL. DEV. = 7.5 DEGREES REMARK 500 LEU A 10 CA - CB - CG ANGL. DEV. = -15.2 DEGREES REMARK 500 LEU A 10 N - CA - C ANGL. DEV. = 18.5 DEGREES REMARK 500 LEU A 10 O - C - N ANGL. DEV. = -14.9 DEGREES REMARK 500 VAL B 65 CA - CB - CG2 ANGL. DEV. = 12.8 DEGREES REMARK 500 ASP B 72 CB - CG - OD1 ANGL. DEV. = 6.8 DEGREES REMARK 500 ASP B 72 CB - CG - OD2 ANGL. DEV. = -8.3 DEGREES REMARK 500 SER B 75 C - N - CA ANGL. DEV. = 15.3 DEGREES REMARK 500 LYS B 93 N - CA - CB ANGL. DEV. = 12.2 DEGREES REMARK 500 ASP B 128 CB - CG - OD1 ANGL. DEV. = 5.8 DEGREES REMARK 500 ASP B 128 CB - CG - OD2 ANGL. DEV. = -7.1 DEGREES REMARK 500 ARG B 145 CB - CA - C ANGL. DEV. = -13.2 DEGREES REMARK 500 ARG B 145 CD - NE - CZ ANGL. DEV. = 10.4 DEGREES REMARK 500 ARG C 154 NE - CZ - NH1 ANGL. DEV. = 5.5 DEGREES REMARK 500 LEU C 162 CB - CG - CD1 ANGL. DEV. = -11.1 DEGREES REMARK 500 ASP C 178 CB - CG - OD2 ANGL. DEV. = -6.1 DEGREES REMARK 500 THR C 219 CA - CB - CG2 ANGL. DEV. = -9.6 DEGREES REMARK 500 TYR C 228 CB - CG - CD1 ANGL. DEV. = -4.4 DEGREES REMARK 500 PRO D 501 C - N - CD ANGL. DEV. = -32.3 DEGREES REMARK 500 PRO D 501 CB - CA - C ANGL. DEV. = -15.9 DEGREES REMARK 500 TYR D 504 CB - CG - CD2 ANGL. DEV. = -13.4 DEGREES REMARK 500 TYR D 504 CB - CG - CD1 ANGL. DEV. = 8.8 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 ASN B 48 -179.06 -173.35 REMARK 500 LYS B 79 67.86 -102.98 REMARK 500 SER C 214 -78.10 -116.03 REMARK 500 REMARK 500 REMARK: NULL REMARK 700 REMARK 700 SHEET REMARK 700 THE SHEET PRESENTED AS *S1* ON SHEET RECORDS BELOW IS REMARK 700 ACTUALLY A SIX-STRANDED BETA-BARREL. THIS IS REPRESENTED REMARK 700 BY A SEVEN-STRANDED SHEET IN WHICH THE FIRST AND LAST REMARK 700 STRANDS ARE IDENTICAL. REMARK 700 SHEET S2 OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REMARK 700 REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, TWO REMARK 700 SHEETS ARE DEFINED. STRANDS 1, 2, 3, 4, 5, AND 7 OF SHEETS REMARK 700 S2A AND S2B ARE IDENTICAL. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: CAT REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CATALYTIC CENTER OF THE MOLECULE REMARK 800 REMARK 800 SITE_IDENTIFIER: BND REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: SUBSTRATE BINDING SITE REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 600 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 601 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR CHAIN D OF TETRAPEPTIDE ADDUCT REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1GCT RELATED DB: PDB REMARK 900 RELATED ID: 3GCT RELATED DB: PDB DBREF 2GCT A 1 13 UNP P00766 CTRA_BOVIN 1 13 DBREF 2GCT B 16 146 UNP P00766 CTRA_BOVIN 16 146 DBREF 2GCT C 149 245 UNP P00766 CTRA_BOVIN 149 245 DBREF 2GCT D 500 504 PDB 2GCT 2GCT 500 504 SEQRES 1 A 13 CYS GLY VAL PRO ALA ILE GLN PRO VAL LEU SER GLY LEU SEQRES 1 B 131 ILE VAL ASN GLY GLU GLU ALA VAL PRO GLY SER TRP PRO SEQRES 2 B 131 TRP GLN VAL SER LEU GLN ASP LYS THR GLY PHE HIS PHE SEQRES 3 B 131 CYS GLY GLY SER LEU ILE ASN GLU ASN TRP VAL VAL THR SEQRES 4 B 131 ALA ALA HIS CYS GLY VAL THR THR SER ASP VAL VAL VAL SEQRES 5 B 131 ALA GLY GLU PHE ASP GLN GLY SER SER SER GLU LYS ILE SEQRES 6 B 131 GLN LYS LEU LYS ILE ALA LYS VAL PHE LYS ASN SER LYS SEQRES 7 B 131 TYR ASN SER LEU THR ILE ASN ASN ASP ILE THR LEU LEU SEQRES 8 B 131 LYS LEU SER THR ALA ALA SER PHE SER GLN THR VAL SER SEQRES 9 B 131 ALA VAL CYS LEU PRO SER ALA SER ASP ASP PHE ALA ALA SEQRES 10 B 131 GLY THR THR CYS VAL THR THR GLY TRP GLY LEU THR ARG SEQRES 11 B 131 TYR SEQRES 1 C 97 ALA ASN THR PRO ASP ARG LEU GLN GLN ALA SER LEU PRO SEQRES 2 C 97 LEU LEU SER ASN THR ASN CYS LYS LYS TYR TRP GLY THR SEQRES 3 C 97 LYS ILE LYS ASP ALA MET ILE CYS ALA GLY ALA SER GLY SEQRES 4 C 97 VAL SER SER CYS MET GLY ASP SER GLY GLY PRO LEU VAL SEQRES 5 C 97 CYS LYS LYS ASN GLY ALA TRP THR LEU VAL GLY ILE VAL SEQRES 6 C 97 SER TRP GLY SER SER THR CYS SER THR SER THR PRO GLY SEQRES 7 C 97 VAL TYR ALA ARG VAL THR ALA LEU VAL ASN TRP VAL GLN SEQRES 8 C 97 GLN THR LEU ALA ALA ASN SEQRES 1 D 5 UNK PRO GLY ALA TYR HET SO4 B 600 5 HET SO4 B 601 5 HETNAM SO4 SULFATE ION FORMUL 5 SO4 2(O4 S 2-) FORMUL 7 HOH *131(H2 O) HELIX 1 H1 ASN C 167 ILE C 176 1 10 HELIX 2 H2 VAL C 231 ASN C 245 1 15 SHEET 1 S1 7 PRO B 28 ASP B 35 0 SHEET 2 S1 7 CYS B 42 GLU B 49 -1 O GLY B 44 N VAL B 31 SHEET 3 S1 7 ASN B 50 ALA B 56 -1 N VAL B 53 O SER B 45 SHEET 4 S1 7 ASN B 101 THR B 110 -1 O THR B 104 N THR B 54 SHEET 5 S1 7 GLN B 81 SER B 92 -1 N PHE B 89 O LEU B 105 SHEET 6 S1 7 SER B 63 GLY B 69 -1 N VAL B 66 O LEU B 83 SHEET 7 S1 7 PRO B 28 ASP B 35 -1 N GLN B 34 O VAL B 65 SHEET 1 S2A 7 GLY B 133 TRP B 141 0 SHEET 2 S2A 7 LEU C 155 LEU C 162 -1 N GLN C 157 O THR B 138 SHEET 3 S2A 7 ALA C 179 SER C 186 -1 N GLY C 184 O PRO C 161 SHEET 4 S2A 7 SER C 223 ALA C 229 -1 N GLY C 226 O ALA C 183 SHEET 5 S2A 7 ILE C 212 SER C 218 -1 N ILE C 212 O ALA C 229 SHEET 6 S2A 7 GLY C 193 CYS C 201 -1 O GLY C 197 N VAL C 213 SHEET 7 S2A 7 GLY B 133 TRP B 141 -1 N VAL B 137 O CYS C 201 SHEET 1 S2B 7 GLY B 133 TRP B 141 0 SHEET 2 S2B 7 LEU C 155 LEU C 162 -1 N GLN C 157 O THR B 138 SHEET 3 S2B 7 ALA C 179 SER C 186 -1 N GLY C 184 O PRO C 161 SHEET 4 S2B 7 SER C 223 ALA C 229 -1 N GLY C 226 O ALA C 183 SHEET 5 S2B 7 ILE C 212 SER C 218 -1 N ILE C 212 O ALA C 229 SHEET 6 S2B 7 GLY D 502 ALA D 503 -1 N GLY D 502 O GLY C 216 SHEET 7 S2B 7 GLY B 133 TRP B 141 -1 SSBOND 1 CYS A 1 CYS B 122 1555 1555 1.98 SSBOND 2 CYS B 42 CYS B 58 1555 1555 1.95 SSBOND 3 CYS B 136 CYS C 201 1555 1555 1.95 SSBOND 4 CYS C 168 CYS C 182 1555 1555 1.97 SSBOND 5 CYS C 191 CYS C 220 1555 1555 2.06 LINK OG SER C 195 C TYR D 504 1555 1555 1.56 SITE 1 CAT 3 HIS B 57 ASP B 102 SER C 195 SITE 1 BND 9 SER C 190 CYS C 191 MET C 192 VAL C 213 SITE 2 BND 9 SER C 214 TRP C 215 SER C 218 CYS C 220 SITE 3 BND 9 TYR C 228 SITE 1 AC1 5 HOH A 16 LYS B 36 SER B 92 HOH B 627 SITE 2 AC1 5 TRP C 237 SITE 1 AC2 4 HIS B 40 GLU B 70 GLN B 73 LYS B 82 SITE 1 AC3 13 LYS C 175 SER C 190 MET C 192 GLY C 193 SITE 2 AC3 13 ASP C 194 SER C 195 SER C 214 TRP C 215 SITE 3 AC3 13 GLY C 216 SER C 217 HOH C 280 HOH D 505 SITE 4 AC3 13 HOH D 506 CRYST1 69.800 69.800 98.100 90.00 90.00 90.00 P 42 21 2 8 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.014327 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014327 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010194 0.00000