HEADER HYDROLASE INHIBITOR 17-OCT-01 1K6U TITLE CRYSTAL STRUCTURE OF CYCLIC BOVINE PANCREATIC TRYPSIN INHIBITOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: PANCREATIC TRYPSIN INHIBITOR; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: BPTI; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THIS SEQUENCE WAS CHEMICALLY SYNTHESIZED. IT IS A 4- SOURCE 4 POINT MUTANT OF THE NATURALLY OCCURING BPTI FROM BOS TAURUS. KEYWDS BPTI, CYCLIC PROTEIN, ATOMIC RESOLUTION, HYDROLASE INHIBITOR EXPDTA X-RAY DIFFRACTION AUTHOR I.BOTOS,Z.WU,W.LU,A.WLODAWER REVDAT 4 16-AUG-23 1K6U 1 REMARK REVDAT 3 27-OCT-21 1K6U 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 1K6U 1 VERSN REVDAT 1 19-DEC-01 1K6U 0 JRNL AUTH I.BOTOS,Z.WU,W.LU,A.WLODAWER JRNL TITL CRYSTAL STRUCTURE OF A CYCLIC FORM OF BOVINE PANCREATIC JRNL TITL 2 TRYPSIN INHIBITOR. JRNL REF FEBS LETT. V. 509 90 2001 JRNL REFN ISSN 0014-5793 JRNL PMID 11734212 JRNL DOI 10.1016/S0014-5793(01)03113-1 REMARK 2 REMARK 2 RESOLUTION. 1.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 4.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.129 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.128 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.172 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 3202 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 32215 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.120 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.118 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.162 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 2634 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 26250 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 451 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 39 REMARK 3 SOLVENT ATOMS : 143 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 604.03 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 407.37 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 8 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 6174 REMARK 3 NUMBER OF RESTRAINTS : 7248 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.018 REMARK 3 ANGLE DISTANCES (A) : 0.036 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.031 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.083 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.102 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.064 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.006 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.056 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.102 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: MOEWS & KRETSINGER, J.MOL.BIOL.91(1973)201-22 REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1K6U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-NOV-01. REMARK 100 THE DEPOSITION ID IS D_1000014633. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-JUL-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X9B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.92 REMARK 200 MONOCHROMATOR : SAGITALLY FOCUSED SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 728960 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.000 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07000 REMARK 200 FOR THE DATA SET : 9.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.04 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 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: SHELX REMARK 200 STARTING MODEL: PDB ENTRY 1G6X REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 29.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.75 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2M AMMONIUM SULFATE, 2% PEG 400, 0.1M REMARK 280 HEPES, PH 7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-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 21.44800 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 25.95200 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 25.95200 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 32.17200 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 25.95200 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 25.95200 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 10.72400 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 25.95200 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 25.95200 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 32.17200 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 25.95200 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 25.95200 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 10.72400 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 21.44800 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: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 S SO4 A 61 LIES ON A SPECIAL POSITION. REMARK 375 S SO4 A 65 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 170 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 181 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 189 LIES ON A SPECIAL POSITION. REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 ARG A 17 NH1 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 O2 EDO A 66 O HOH A 145 2.14 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 ARG A 1 CD - NE - CZ ANGL. DEV. = 9.4 DEGREES REMARK 500 ARG A 17 CD - NE - CZ ANGL. DEV. = 9.3 DEGREES REMARK 500 ARG A 17 NE - CZ - NH1 ANGL. DEV. = 4.4 DEGREES REMARK 500 ARG A 17 NE - CZ - NH2 ANGL. DEV. = -6.8 DEGREES REMARK 500 CYS A 38 CA - CB - SG ANGL. DEV. = 7.1 DEGREES REMARK 500 ARG A 39 CD - NE - CZ ANGL. DEV. = 12.8 DEGREES REMARK 500 ARG A 39 CD - NE - CZ ANGL. DEV. = 17.4 DEGREES REMARK 500 ARG A 39 NE - CZ - NH1 ANGL. DEV. = 4.0 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 A 44 107.82 -161.26 REMARK 500 REMARK 500 REMARK: NULL REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 SO4 A 61 REMARK 610 SO4 A 65 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 59 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 60 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 61 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 62 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 63 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 64 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 65 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 66 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 67 DBREF 1K6U A 1 58 UNP P00974 BPT1_BOVIN 36 93 SEQADV 1K6U ALA A 11 UNP P00974 THR 46 ENGINEERED MUTATION SEQADV 1K6U ALA A 13 UNP P00974 PRO 48 ENGINEERED MUTATION SEQADV 1K6U ARG A 15 UNP P00974 LYS 50 ENGINEERED MUTATION SEQADV 1K6U LEU A 52 UNP P00974 MET 87 ENGINEERED MUTATION SEQRES 1 A 58 ARG PRO ASP PHE CYS LEU GLU PRO PRO TYR ALA GLY ALA SEQRES 2 A 58 CYS ARG ALA ARG ILE ILE ARG TYR PHE TYR ASN ALA LYS SEQRES 3 A 58 ALA GLY LEU CYS GLN THR PHE VAL TYR GLY GLY CYS ARG SEQRES 4 A 58 ALA LYS ARG ASN ASN PHE LYS SER ALA GLU ASP CYS LEU SEQRES 5 A 58 ARG THR CYS GLY GLY ALA HET SO4 A 59 5 HET SO4 A 60 5 HET SO4 A 61 3 HET SO4 A 62 5 HET SO4 A 63 5 HET SO4 A 64 5 HET SO4 A 65 3 HET EDO A 66 4 HET EDO A 67 4 HETNAM SO4 SULFATE ION HETNAM EDO 1,2-ETHANEDIOL HETSYN EDO ETHYLENE GLYCOL FORMUL 2 SO4 7(O4 S 2-) FORMUL 9 EDO 2(C2 H6 O2) FORMUL 11 HOH *143(H2 O) HELIX 1 1 PRO A 2 GLU A 7 5 6 HELIX 2 2 SER A 47 GLY A 56 1 10 SHEET 1 A 2 ILE A 18 ASN A 24 0 SHEET 2 A 2 LEU A 29 TYR A 35 -1 O TYR A 35 N ILE A 18 SSBOND 1 CYS A 5 CYS A 55 1555 1555 2.04 SSBOND 2 CYS A 14 CYS A 38 1555 1555 1.91 SSBOND 3 CYS A 30 CYS A 51 1555 1555 2.03 LINK N ARG A 1 C ALA A 58 1555 1555 1.33 SITE 1 AC1 8 PHE A 4 GLU A 7 ARG A 42 HOH A 109 SITE 2 AC1 8 HOH A 125 HOH A 137 HOH A 138 HOH A 209 SITE 1 AC2 11 ARG A 20 TYR A 35 GLY A 37 ALA A 40 SITE 2 AC2 11 ARG A 53 HOH A 124 HOH A 160 HOH A 188 SITE 3 AC2 11 HOH A 191 HOH A 199 HOH A 221 SITE 1 AC3 3 ARG A 15 HOH A 150 HOH A 234 SITE 1 AC4 8 CYS A 38 ARG A 39 HOH A 124 HOH A 154 SITE 2 AC4 8 HOH A 196 HOH A 207 HOH A 221 HOH A 244 SITE 1 AC5 4 ARG A 1 LYS A 26 HOH A 115 HOH A 219 SITE 1 AC6 8 PRO A 9 TYR A 10 ALA A 11 HOH A 101 SITE 2 AC6 8 HOH A 102 HOH A 103 HOH A 153 HOH A 216 SITE 1 AC7 2 PRO A 2 ASP A 3 SITE 1 AC8 4 ARG A 39 ALA A 40 LYS A 41 HOH A 145 SITE 1 AC9 3 ALA A 25 LEU A 52 HOH A 158 CRYST1 51.904 51.904 42.896 90.00 90.00 90.00 P 43 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 0.019266 0.000000 0.000000 0.00000 SCALE2 0.000000 0.019266 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023312 0.00000