HEADER HYDROLASE 21-JAN-03 1NQC TITLE CRYSTAL STRUCTURES OF CATHEPSIN S INHIBITOR COMPLEXES COMPND MOL_ID: 1; COMPND 2 MOLECULE: CATHEPSIN S; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.22.27 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606 KEYWDS ANTIGEN PRESENTATION, BINDING SPECIFICITY, CYSTEINE PROTEASES, KEYWDS 2 INHIBITOR COMPLEXES, STRUCTURE-BASED DESIGN, STRUCTURAL PLASTICITY, KEYWDS 3 HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR T.A.PAULY,T.SULEA,M.AMMIRATI,J.SIVARAMAN,D.E.DANLEY,M.C.GRIFFOR, AUTHOR 2 A.V.KAMATH,I.K.WANG,E.R.LAIRD,R.MENARD,M.CYGLER,V.L.RATH REVDAT 5 16-AUG-23 1NQC 1 REMARK LINK REVDAT 4 11-OCT-17 1NQC 1 REMARK REVDAT 3 24-FEB-09 1NQC 1 VERSN REVDAT 2 03-FEB-04 1NQC 1 REMARK REVDAT 1 15-APR-03 1NQC 0 JRNL AUTH T.A.PAULY,T.SULEA,M.AMMIRATI,J.SIVARAMAN,D.E.DANLEY, JRNL AUTH 2 M.C.GRIFFOR,A.V.KAMATH,I.K.WANG,E.R.LAIRD,A.P.SEDDON, JRNL AUTH 3 R.MENARD,M.CYGLER,V.L.RATH JRNL TITL SPECIFICITY DETERMINANTS OF HUMAN CATHEPSIN S REVEALED BY JRNL TITL 2 CRYSTAL STRUCTURES OF COMPLEXES. JRNL REF BIOCHEMISTRY V. 42 3203 2003 JRNL REFN ISSN 0006-2960 JRNL PMID 12641451 JRNL DOI 10.1021/BI027308I REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 24541 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.199 REMARK 3 FREE R VALUE : 0.219 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1184 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1687 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 32 REMARK 3 SOLVENT ATOMS : 245 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.02 REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.20 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.860 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; 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 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1NQC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-FEB-03. REMARK 100 THE DEPOSITION ID IS D_1000018106. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-JUL-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00 REMARK 200 MONOCHROMATOR : SILICON REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : ADX REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 207486 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 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 (%) : 91.4 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.14800 REMARK 200 FOR THE DATA SET : 6.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.83 REMARK 200 COMPLETENESS FOR SHELL (%) : 50.5 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.53500 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: CNS REMARK 200 STARTING MODEL: SEARCH MODEL CONSISTS OF A POLYALANINE HOMOLGY REMARK 200 MODEL OF CATHEPSIN S CONSTRUCTED FROM CATHEPSIN K (PDB CODE 1ATK) REMARK 200 AND CATHEPSIN L FROM THE PROCATHEPSIN L (PDB CODE 1CJ1) REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.62 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM ACETATE, AMMONIUM SULPHATE, PH REMARK 280 5.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-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 18.45000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 50.95000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 38.25000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 50.95000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 18.45000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 38.25000 REMARK 290 SMTRY3 4 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: 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 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 722 O HOH A 740 4556 2.13 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 CYS A 25 CB CYS A 25 SG -0.147 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 THR A 58 -133.17 -109.14 REMARK 500 ASN A 163 -0.42 -151.25 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 C4P A 218 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1NPZ RELATED DB: PDB DBREF 1NQC A 1 217 UNP P25774 CATS_HUMAN 115 331 SEQRES 1 A 217 LEU PRO ASP SER VAL ASP TRP ARG GLU LYS GLY CYS VAL SEQRES 2 A 217 THR GLU VAL LYS TYR GLN GLY SER CYS GLY ALA CYS TRP SEQRES 3 A 217 ALA PHE SER ALA VAL GLY ALA LEU GLU ALA GLN LEU LYS SEQRES 4 A 217 LEU LYS THR GLY LYS LEU VAL THR LEU SER ALA GLN ASN SEQRES 5 A 217 LEU VAL ASP CYS SER THR GLU LYS TYR GLY ASN LYS GLY SEQRES 6 A 217 CYS ASN GLY GLY PHE MET THR THR ALA PHE GLN TYR ILE SEQRES 7 A 217 ILE ASP ASN LYS GLY ILE ASP SER ASP ALA SER TYR PRO SEQRES 8 A 217 TYR LYS ALA MET ASP GLN LYS CYS GLN TYR ASP SER LYS SEQRES 9 A 217 TYR ARG ALA ALA THR CYS SER LYS TYR THR GLU LEU PRO SEQRES 10 A 217 TYR GLY ARG GLU ASP VAL LEU LYS GLU ALA VAL ALA ASN SEQRES 11 A 217 LYS GLY PRO VAL SER VAL GLY VAL ASP ALA ARG HIS PRO SEQRES 12 A 217 SER PHE PHE LEU TYR ARG SER GLY VAL TYR TYR GLU PRO SEQRES 13 A 217 SER CYS THR GLN ASN VAL ASN HIS GLY VAL LEU VAL VAL SEQRES 14 A 217 GLY TYR GLY ASP LEU ASN GLY LYS GLU TYR TRP LEU VAL SEQRES 15 A 217 LYS ASN SER TRP GLY HIS ASN PHE GLY GLU GLU GLY TYR SEQRES 16 A 217 ILE ARG MET ALA ARG ASN LYS GLY ASN HIS CYS GLY ILE SEQRES 17 A 217 ALA SER PHE PRO SER TYR PRO GLU ILE HET C4P A 218 32 HETNAM C4P N-[(1R)-2-(BENZYLSULFANYL)-1-FORMYLETHYL]-N-(MORPHOLIN- HETNAM 2 C4P 4-YLCARBONYL)-L-PHENYLALANINAMIDE HETSYN C4P MORPHOLINE-4-CARBOXYLIC ACID [1-(2-BENZYLSULFANYL-1- HETSYN 2 C4P FORMYL-ETHYLCARBAMOYL)-2-PHENYL-ETHYL]-AMIDE FORMUL 2 C4P C24 H29 N3 O4 S FORMUL 3 HOH *245(H2 O) HELIX 1 1 ARG A 8 GLY A 11 5 4 HELIX 2 2 ALA A 24 GLY A 43 1 20 HELIX 3 3 SER A 49 SER A 57 1 9 HELIX 4 4 THR A 58 GLY A 62 5 5 HELIX 5 5 LYS A 64 GLY A 68 5 5 HELIX 6 6 PHE A 70 LYS A 82 1 13 HELIX 7 7 ASP A 102 LYS A 104 5 3 HELIX 8 8 ARG A 120 LYS A 131 1 12 HELIX 9 9 HIS A 142 TYR A 148 1 7 HELIX 10 10 ASN A 204 ILE A 208 5 5 SHEET 1 A 5 VAL A 152 TYR A 153 0 SHEET 2 A 5 TYR A 195 ALA A 199 1 O ARG A 197 N TYR A 153 SHEET 3 A 5 LYS A 177 LYS A 183 -1 N VAL A 182 O ILE A 196 SHEET 4 A 5 HIS A 164 LEU A 174 -1 N LEU A 167 O LYS A 183 SHEET 5 A 5 VAL A 5 ASP A 6 -1 N VAL A 5 O TYR A 171 SHEET 1 B 5 VAL A 152 TYR A 153 0 SHEET 2 B 5 TYR A 195 ALA A 199 1 O ARG A 197 N TYR A 153 SHEET 3 B 5 LYS A 177 LYS A 183 -1 N VAL A 182 O ILE A 196 SHEET 4 B 5 HIS A 164 LEU A 174 -1 N LEU A 167 O LYS A 183 SHEET 5 B 5 VAL A 134 VAL A 138 -1 N VAL A 134 O VAL A 168 SHEET 1 C 2 ILE A 84 ASP A 85 0 SHEET 2 C 2 ARG A 106 ALA A 108 -1 O ALA A 107 N ILE A 84 SHEET 1 D 2 LYS A 112 GLU A 115 0 SHEET 2 D 2 SER A 213 GLU A 216 -1 O TYR A 214 N THR A 114 SSBOND 1 CYS A 22 CYS A 66 1555 1555 2.50 SSBOND 2 CYS A 56 CYS A 99 1555 1555 2.87 SSBOND 3 CYS A 158 CYS A 206 1555 1555 2.30 LINK SG CYS A 25 C56 C4P A 218 1555 1555 1.65 SITE 1 AC1 21 GLN A 19 SER A 21 GLY A 23 CYS A 25 SITE 2 AC1 21 TRP A 26 GLY A 62 LYS A 64 CYS A 66 SITE 3 AC1 21 ASN A 67 GLY A 68 GLY A 69 PHE A 70 SITE 4 AC1 21 MET A 71 PRO A 143 LEU A 147 GLN A 160 SITE 5 AC1 21 VAL A 162 ASN A 163 HOH A 625 HOH A 655 SITE 6 AC1 21 HOH A 699 CRYST1 36.900 76.500 101.900 90.00 90.00 90.00 P 21 21 21 4 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 0.027100 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013072 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009814 0.00000