HEADER HYDROLASE 02-APR-03 1OXG TITLE CRYSTAL STRUCTURE OF A COMPLEX FORMED BETWEEN ORGANIC SOLVENT TREATED TITLE 2 BOVINE ALPHA-CHYMOTRYPSIN AND ITS AUTOCATALYTICALLY PRODUCED HIGHLY TITLE 3 POTENT 14-RESIDUE PEPTIDE AT 2.2 RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHYMOTRYPSINOGEN A; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ALPHA CHYMOTRYPSIN; COMPND 5 EC: 3.4.21.1; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: CHYMOTRYPSINOGEN A; COMPND 8 CHAIN: B; COMPND 9 FRAGMENT: RESIDUES 1-14; COMPND 10 SYNONYM: ALPHA CHYMOTRYPSIN; COMPND 11 EC: 3.4.21.1 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: BOVINE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 SECRETION: PANCREATIC SECRETION; SOURCE 6 MOL_ID: 2; SOURCE 7 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 8 ORGANISM_COMMON: BOVINE; SOURCE 9 ORGANISM_TAXID: 9913; SOURCE 10 SECRETION: PANCREATIC SECRETION KEYWDS AUTOCATALYSIS, ORGANIC SOLVENT TREATMENT, INHIBITION, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR N.SINGH,T.JABEEN,S.SHARMA,I.ROY,M.N.GUPTA,S.BILGRAMI,T.P.SINGH REVDAT 5 30-OCT-24 1OXG 1 REMARK REVDAT 4 25-OCT-23 1OXG 1 REMARK ATOM REVDAT 3 24-FEB-09 1OXG 1 VERSN REVDAT 2 01-FEB-05 1OXG 1 JRNL AUTHOR REVDAT 1 18-MAY-04 1OXG 0 JRNL AUTH N.SINGH,T.JABEEN,S.SHARMA,I.ROY,M.N.GUPTA,S.BILGRAMI, JRNL AUTH 2 R.K.SOMVANSHI,S.DEY,M.PERBANDT,C.BETZEL,A.SRINIVASAN, JRNL AUTH 3 T.P.SINGH JRNL TITL DETECTION OF NATIVE PEPTIDES AS POTENT INHIBITORS OF JRNL TITL 2 ENZYMES. CRYSTAL STRUCTURE OF THE COMPLEX FORMED BETWEEN JRNL TITL 3 TREATED BOVINE ALPHA-CHYMOTRYPSIN AND AN AUTOCATALYTICALLY JRNL TITL 4 PRODUCED FRAGMENT, JRNL TITL 5 IIE-VAL-ASN-GLY-GLU-GLU-ALA-VAL-PRO-GLY-SER-TRP-PRO-TRP, AT JRNL TITL 6 2.2 ANGSTROMS RESOLUTION. JRNL REF FEBS J. V. 272 562 2005 JRNL REFN ISSN 1742-464X JRNL PMID 15654893 JRNL DOI 10.1111/J.1742-4658.2004.04499.X REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.9 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.69 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1842156.110 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 11673 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.192 REMARK 3 FREE R VALUE : 0.207 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.200 REMARK 3 FREE R VALUE TEST SET COUNT : 602 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.34 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1831 REMARK 3 BIN R VALUE (WORKING SET) : 0.1860 REMARK 3 BIN FREE R VALUE : 0.2390 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 84 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.026 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1855 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 30 REMARK 3 SOLVENT ATOMS : 230 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 12.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 21.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -2.91000 REMARK 3 B22 (A**2) : 5.23000 REMARK 3 B33 (A**2) : -2.32000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.21 REMARK 3 ESD FROM SIGMAA (A) : 0.07 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.16 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.018 REMARK 3 BOND ANGLES (DEGREES) : 2.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 27.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.880 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.360 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.110 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.190 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.860 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.34 REMARK 3 BSOL : 62.64 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : SUL.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : ATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : SUL.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1OXG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 08-APR-03. REMARK 100 THE DEPOSITION ID IS D_1000018772. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-APR-02 REMARK 200 TEMPERATURE (KELVIN) : 278 REMARK 200 PH : 4.8 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X11 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.91 REMARK 200 MONOCHROMATOR : MIRROR REMARK 200 OPTICS : MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11673 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.7 REMARK 200 DATA REDUNDANCY : 20.30 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04300 REMARK 200 FOR THE DATA SET : 18.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.24 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.7 REMARK 200 DATA REDUNDANCY IN SHELL : 23.90 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.09300 REMARK 200 FOR SHELL : 2.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: 1ACB REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.07 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2M AMMONIUM SULPHATE, 20MM SODIUM REMARK 280 ACETATE BUFFER, PH 4.8, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 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 -X,Y,-Z REMARK 290 4555 X,-Y,-Z 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 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-Z+1/2 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 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 28.09350 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 38.19100 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 52.54900 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 28.09350 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 38.19100 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 52.54900 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 28.09350 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 38.19100 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 52.54900 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 28.09350 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 38.19100 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 52.54900 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1510 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10830 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -53.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 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 SER A 14 REMARK 465 ARG A 15 REMARK 465 THR A 147 REMARK 465 ASN A 148 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 ILE B 1 CB CG1 CG2 CD1 REMARK 470 VAL B 2 CB CG1 CG2 REMARK 470 ASN B 3 CB CG OD1 ND2 REMARK 470 GLU B 5 CB CG CD OE1 OE2 REMARK 470 GLU B 6 CB CG CD OE1 OE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OG SER A 195 C TRP B 14 1.35 REMARK 500 OG SER A 195 O TRP B 14 1.93 REMARK 500 OG SER A 218 O PRO B 9 2.18 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 ASP A 64 CB - CG - OD2 ANGL. DEV. = 6.0 DEGREES REMARK 500 ASP A 72 CB - CG - OD2 ANGL. DEV. = 6.9 DEGREES REMARK 500 PRO A 152 C - N - CA ANGL. DEV. = -9.4 DEGREES REMARK 500 VAL B 8 O - C - N ANGL. DEV. = 12.1 DEGREES REMARK 500 PRO B 9 C - N - CA ANGL. DEV. = 56.7 DEGREES REMARK 500 PRO B 9 C - N - CD ANGL. DEV. = -42.0 DEGREES REMARK 500 PRO B 9 CA - N - CD ANGL. DEV. = -21.5 DEGREES REMARK 500 PRO B 9 N - CA - CB ANGL. DEV. = 15.8 DEGREES REMARK 500 PRO B 9 N - CD - CG ANGL. DEV. = 14.5 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 GLU A 70 55.70 -93.30 REMARK 500 ASP A 72 63.75 39.80 REMARK 500 GLN A 73 27.11 -148.07 REMARK 500 SER A 76 -161.03 44.90 REMARK 500 SER A 77 82.96 -8.85 REMARK 500 GLU A 78 -153.24 -130.09 REMARK 500 SER A 115 -169.50 -165.60 REMARK 500 ASN A 150 40.44 -75.84 REMARK 500 SER A 214 -63.13 -120.81 REMARK 500 VAL B 2 94.38 159.59 REMARK 500 ASN B 3 -137.01 135.08 REMARK 500 GLU B 6 62.56 -112.56 REMARK 500 PRO B 9 107.07 126.80 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1002 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1003 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1004 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1005 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 1006 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1ACB RELATED DB: PDB REMARK 900 CRYSTAL AND MOLECULAR STRUCTURE OF THE BOVINE ALPHA-CHYMOTRYPSIN- REMARK 900 EGLIN C COMPLEX AT 2.0 A RESOLUTION REMARK 900 RELATED ID: 4CHA RELATED DB: PDB REMARK 900 STRUCTURE OF ALPHA-CHYMOTRYPSIN REFINED AT 1.68 A RESOLUTION REMARK 900 RELATED ID: 6CHA RELATED DB: PDB REMARK 900 STRUCTURE OF A TETRAHEDRAL TRANSITION STATE COMPLEX OF ALPHA- REMARK 900 CHYMOTRYPSIN DIMER AT 1.8-A RESOLUTION DBREF 1OXG A 1 245 UNP P00766 CTRA_BOVIN 1 245 DBREF 1OXG B 1 14 UNP P00766 CTRA_BOVIN 16 29 SEQRES 1 A 245 CYS GLY VAL PRO ALA ILE GLN PRO VAL LEU SER GLY LEU SEQRES 2 A 245 SER ARG ILE VAL ASN GLY GLU GLU ALA VAL PRO GLY SER SEQRES 3 A 245 TRP PRO TRP GLN VAL SER LEU GLN ASP LYS THR GLY PHE SEQRES 4 A 245 HIS PHE CYS GLY GLY SER LEU ILE ASN GLU ASN TRP VAL SEQRES 5 A 245 VAL THR ALA ALA HIS CYS GLY VAL THR THR SER ASP VAL SEQRES 6 A 245 VAL VAL ALA GLY GLU PHE ASP GLN GLY SER SER SER GLU SEQRES 7 A 245 LYS ILE GLN LYS LEU LYS ILE ALA LYS VAL PHE LYS ASN SEQRES 8 A 245 SER LYS TYR ASN SER LEU THR ILE ASN ASN ASP ILE THR SEQRES 9 A 245 LEU LEU LYS LEU SER THR ALA ALA SER PHE SER GLN THR SEQRES 10 A 245 VAL SER ALA VAL CYS LEU PRO SER ALA SER ASP ASP PHE SEQRES 11 A 245 ALA ALA GLY THR THR CYS VAL THR THR GLY TRP GLY LEU SEQRES 12 A 245 THR ARG TYR THR ASN ALA ASN THR PRO ASP ARG LEU GLN SEQRES 13 A 245 GLN ALA SER LEU PRO LEU LEU SER ASN THR ASN CYS LYS SEQRES 14 A 245 LYS TYR TRP GLY THR LYS ILE LYS ASP ALA MET ILE CYS SEQRES 15 A 245 ALA GLY ALA SER GLY VAL SER SER CYS MET GLY ASP SER SEQRES 16 A 245 GLY GLY PRO LEU VAL CYS LYS LYS ASN GLY ALA TRP THR SEQRES 17 A 245 LEU VAL GLY ILE VAL SER TRP GLY SER SER THR CYS SER SEQRES 18 A 245 THR SER THR PRO GLY VAL TYR ALA ARG VAL THR ALA LEU SEQRES 19 A 245 VAL ASN TRP VAL GLN GLN THR LEU ALA ALA ASN SEQRES 1 B 14 ILE VAL ASN GLY GLU GLU ALA VAL PRO GLY SER TRP PRO SEQRES 2 B 14 TRP HET SO4 A1001 5 HET SO4 A1002 5 HET SO4 A1003 5 HET SO4 A1004 5 HET SO4 A1005 5 HET SO4 B1006 5 HETNAM SO4 SULFATE ION FORMUL 3 SO4 6(O4 S 2-) FORMUL 9 HOH *230(H2 O) HELIX 1 1 ALA A 55 GLY A 59 5 5 HELIX 2 2 SER A 164 GLY A 173 1 10 HELIX 3 3 THR A 174 ILE A 176 5 3 HELIX 4 4 LEU A 234 ASN A 245 1 12 SHEET 1 A 7 GLU A 20 GLU A 21 0 SHEET 2 A 7 GLN A 156 PRO A 161 -1 O GLN A 157 N GLU A 20 SHEET 3 A 7 THR A 135 GLY A 140 -1 N CYS A 136 O LEU A 160 SHEET 4 A 7 PRO A 198 LYS A 203 -1 O VAL A 200 N VAL A 137 SHEET 5 A 7 ALA A 206 SER A 217 -1 O ALA A 206 N LYS A 203 SHEET 6 A 7 PRO A 225 ARG A 230 -1 O ALA A 229 N ILE A 212 SHEET 7 A 7 MET A 180 GLY A 184 -1 N ILE A 181 O TYR A 228 SHEET 1 B 6 GLU A 20 GLU A 21 0 SHEET 2 B 6 GLN A 156 PRO A 161 -1 O GLN A 157 N GLU A 20 SHEET 3 B 6 THR A 135 GLY A 140 -1 N CYS A 136 O LEU A 160 SHEET 4 B 6 PRO A 198 LYS A 203 -1 O VAL A 200 N VAL A 137 SHEET 5 B 6 ALA A 206 SER A 217 -1 O ALA A 206 N LYS A 203 SHEET 6 B 6 SER B 11 PRO B 13 -1 O TRP B 12 N GLY A 216 SHEET 1 C 7 GLN A 30 GLN A 34 0 SHEET 2 C 7 HIS A 40 ASN A 48 -1 O CYS A 42 N LEU A 33 SHEET 3 C 7 TRP A 51 THR A 54 -1 O VAL A 53 N SER A 45 SHEET 4 C 7 THR A 104 LEU A 108 -1 O THR A 104 N THR A 54 SHEET 5 C 7 ILE A 80 LYS A 90 -1 N PHE A 89 O LEU A 105 SHEET 6 C 7 VAL A 65 GLY A 69 -1 N VAL A 66 O LEU A 83 SHEET 7 C 7 GLN A 30 GLN A 34 -1 N GLN A 34 O VAL A 65 SSBOND 1 CYS A 1 CYS A 122 1555 1555 2.07 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.04 SSBOND 3 CYS A 136 CYS A 201 1555 1555 2.02 SSBOND 4 CYS A 168 CYS A 182 1555 1555 2.02 SSBOND 5 CYS A 191 CYS A 220 1555 1555 2.05 SITE 1 AC1 8 SER A 115 GLN A 116 ASN A 167 THR A 222 SITE 2 AC1 8 SER A 223 HOH A1037 HOH A1049 HOH A1135 SITE 1 AC2 5 LYS A 177 ASP A 178 ILE B 1 VAL B 2 SITE 2 AC2 5 ASN B 3 SITE 1 AC3 4 ASN A 95 ASN A 100 ASN A 101 HOH A1059 SITE 1 AC4 4 THR A 61 THR A 62 HOH A1093 HOH A1150 SITE 1 AC5 1 HOH A1077 SITE 1 AC6 5 LYS A 175 GLY B 10 SER B 11 HOH B 149 SITE 2 AC6 5 HOH B 225 CRYST1 56.187 76.382 105.098 90.00 90.00 90.00 I 2 2 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 0.017798 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013092 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009515 0.00000