HEADER HYDROLASE/HYDROLASE INHIBITOR 19-OCT-94 1IDB TITLE CRYSTAL STRUCTURES OF HIV-2 PROTEASE IN COMPLEX WITH INHIBITORS TITLE 2 CONTAINING THE HYDROXYETHYLAMINE DIPEPTIDE ISOSTERE COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEASE; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HUMAN IMMUNODEFICIENCY VIRUS 2; SOURCE 3 ORGANISM_TAXID: 11709; SOURCE 4 GENE: POL; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS HYDROLASE-HYDROLASE INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR L.TONG,P.C.ANDERSON REVDAT 7 07-FEB-24 1IDB 1 REMARK REVDAT 6 24-JUN-20 1IDB 1 COMPND SOURCE DBREF REVDAT 5 14-AUG-19 1IDB 1 REMARK REVDAT 4 17-JUL-19 1IDB 1 REMARK REVDAT 3 13-JUL-11 1IDB 1 VERSN REVDAT 2 24-FEB-09 1IDB 1 VERSN REVDAT 1 26-JAN-95 1IDB 0 JRNL AUTH L.TONG,S.PAV,S.MUI,D.LAMARRE,C.YOAKIM,P.BEAULIEU, JRNL AUTH 2 P.C.ANDERSON JRNL TITL CRYSTAL STRUCTURES OF HIV-2 PROTEASE IN COMPLEX WITH JRNL TITL 2 INHIBITORS CONTAINING THE HYDROXYETHYLAMINE DIPEPTIDE JRNL TITL 3 ISOSTERE. JRNL REF STRUCTURE V. 3 33 1995 JRNL REFN ISSN 0969-2126 JRNL PMID 7743130 JRNL DOI 10.1016/S0969-2126(01)00133-2 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH L.TONG,S.PAV,C.PARGELLIS,F.DO,D.LAMARRE,P.C.ANDERSON REMARK 1 TITL CRYSTAL STRUCTURE OF HUMAN IMMUNODEFICIENCY VIRUS (HIV) TYPE REMARK 1 TITL 2 2 PROTEASE IN COMPLEX WITH A REDUCED AMIDE INHIBITOR AND REMARK 1 TITL 3 COMPARISON WITH HIV-1 PROTEASE STRUCTURES REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 90 8387 1993 REMARK 1 REFN ISSN 0027-8424 REMARK 2 REMARK 2 RESOLUTION. 2.20 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) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 10200 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) : 0.180 REMARK 3 R VALUE (WORKING SET) : 0.180 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 : 1510 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 46 REMARK 3 SOLVENT ATOMS : 42 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) : NULL ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; 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 1IDB 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_1000174107. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.45 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.64 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 57.90000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 31.30000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 31.30000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 86.85000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 31.30000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 31.30000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 28.95000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 31.30000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 31.30000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 86.85000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 31.30000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 31.30000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 28.95000 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 57.90000 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: 5350 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9200 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -5.0 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 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 A 21 CD GLU A 21 OE1 0.069 REMARK 500 GLU A 37 CD GLU A 37 OE2 0.086 REMARK 500 GLU A 63 CD GLU A 63 OE1 0.091 REMARK 500 GLU A 65 CD GLU A 65 OE1 0.090 REMARK 500 GLU B 16 CD GLU B 16 OE2 0.073 REMARK 500 GLU B 21 CD GLU B 21 OE2 0.116 REMARK 500 GLU B 37 CD GLU B 37 OE2 0.085 REMARK 500 GLU B 58 CD GLU B 58 OE1 -0.068 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 30 CB - CG - OD1 ANGL. DEV. = 7.3 DEGREES REMARK 500 ASP A 30 CB - CG - OD2 ANGL. DEV. = -6.7 DEGREES REMARK 500 ARG A 87 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 ASP B 25 CB - CG - OD1 ANGL. DEV. = 7.0 DEGREES REMARK 500 ASP B 79 CB - CG - OD1 ANGL. DEV. = 6.8 DEGREES REMARK 500 ASP B 79 CB - CG - OD2 ANGL. DEV. = -6.1 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 LEU A 5 31.74 -97.88 REMARK 500 ASP A 79 78.91 -66.95 REMARK 500 REMARK 500 REMARK: NULL REMARK 630 REMARK 630 MOLECULE TYPE: PEPTIDE-LIKE INHIBITOR REMARK 630 MOLECULE NAME: (2R,4S)-N-TERT-BUTYL-1-[(2S,3S)-3-{[(2,6- REMARK 630 DIMETHYLPHENOXY)ACETYL]AMINO}-2-HYDROXY-4-PHENYLBUTYL]-4-(PYRIDIN- REMARK 630 4-YLSULFONYL)PIPERIDINE-2-CARBOXAMIDE REMARK 630 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 630 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 630 REMARK 630 M RES C SSSEQI REMARK 630 0DO B 100 REMARK 630 SOURCE: NULL REMARK 630 TAXONOMY: NULL REMARK 630 SUBCOMP: DBA SZ0 NTB REMARK 630 DETAILS: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 0DO B 100 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1IDA RELATED DB: PDB DBREF 1IDB A 1 99 UNP Q9W9R3 Q9W9R3_9HIV2 1 99 DBREF 1IDB B 1 99 UNP Q9W9R3 Q9W9R3_9HIV2 1 99 SEQRES 1 A 99 PRO GLN PHE SER LEU TRP LYS ARG PRO VAL VAL THR ALA SEQRES 2 A 99 TYR ILE GLU GLY GLN PRO VAL GLU VAL LEU LEU ASP THR SEQRES 3 A 99 GLY ALA ASP ASP SER ILE VAL ALA GLY ILE GLU LEU GLY SEQRES 4 A 99 ASN ASN TYR SER PRO LYS ILE VAL GLY GLY ILE GLY GLY SEQRES 5 A 99 PHE ILE ASN THR LYS GLU TYR LYS ASN VAL GLU ILE GLU SEQRES 6 A 99 VAL LEU ASN LYS LYS VAL ARG ALA THR ILE MET THR GLY SEQRES 7 A 99 ASP THR PRO ILE ASN ILE PHE GLY ARG ASN ILE LEU THR SEQRES 8 A 99 ALA LEU GLY MET SER LEU ASN LEU SEQRES 1 B 99 PRO GLN PHE SER LEU TRP LYS ARG PRO VAL VAL THR ALA SEQRES 2 B 99 TYR ILE GLU GLY GLN PRO VAL GLU VAL LEU LEU ASP THR SEQRES 3 B 99 GLY ALA ASP ASP SER ILE VAL ALA GLY ILE GLU LEU GLY SEQRES 4 B 99 ASN ASN TYR SER PRO LYS ILE VAL GLY GLY ILE GLY GLY SEQRES 5 B 99 PHE ILE ASN THR LYS GLU TYR LYS ASN VAL GLU ILE GLU SEQRES 6 B 99 VAL LEU ASN LYS LYS VAL ARG ALA THR ILE MET THR GLY SEQRES 7 B 99 ASP THR PRO ILE ASN ILE PHE GLY ARG ASN ILE LEU THR SEQRES 8 B 99 ALA LEU GLY MET SER LEU ASN LEU HET 0DO B 100 46 HETNAM 0DO (2R,4S)-N-TERT-BUTYL-1-[(2S,3S)-3-{[(2,6- HETNAM 2 0DO DIMETHYLPHENOXY)ACETYL]AMINO}-2-HYDROXY-4- HETNAM 3 0DO PHENYLBUTYL]-4-(PYRIDIN-4-YLSULFONYL)PIPERIDINE-2- HETNAM 4 0DO CARBOXAMIDE FORMUL 3 0DO C35 H46 N4 O6 S FORMUL 4 HOH *42(H2 O) HELIX 1 1 GLY A 86 GLY A 94 1 9 HELIX 2 2 GLY B 86 GLY B 94 1 9 SHEET 1 A 4 GLN A 2 SER A 4 0 SHEET 2 A 4 SER B 96 ASN B 98 -1 O LEU B 97 N PHE A 3 SHEET 3 A 4 SER A 96 ASN A 98 -1 O SER A 96 N ASN B 98 SHEET 4 A 4 GLN B 2 PHE B 3 -1 N PHE B 3 O LEU A 97 SITE 1 AC1 21 ASP A 25 GLY A 27 GLY A 48 GLY A 49 SITE 2 AC1 21 ILE A 50 PRO A 81 ILE A 82 ILE A 84 SITE 3 AC1 21 HOH A 301 ASP B 25 GLY B 27 ALA B 28 SITE 4 AC1 21 ASP B 29 ASP B 30 VAL B 47 GLY B 48 SITE 5 AC1 21 GLY B 49 ILE B 50 PRO B 81 ILE B 82 SITE 6 AC1 21 HOH B 321 CRYST1 62.600 62.600 115.800 90.00 90.00 90.00 P 43 21 2 16 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 0.015974 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015974 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008636 0.00000