HEADER HYDROLASE 28-DEC-99 1C6Y TITLE ALTERNATE BINDING SITE FOR THE P1-P3 GROUP OF A CLASS OF POTENT HIV-1 TITLE 2 PROTEASE INHIBITORS AS A RESULT OF CONCERTED STRUCTURAL CHANGE IN TITLE 3 80'S LOOP. COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (PROTEASE); COMPND 3 CHAIN: A, B; COMPND 4 EC: 3.4.24.-; COMPND 5 ENGINEERED: YES; COMPND 6 OTHER_DETAILS: NY5 ISOLATE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HUMAN IMMUNODEFICIENCY VIRUS 1; SOURCE 3 ORGANISM_TAXID: 11676; SOURCE 4 GENE: NY5 ISOLATE; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR S.MUNSHI REVDAT 3 27-DEC-23 1C6Y 1 REMARK REVDAT 2 24-FEB-09 1C6Y 1 VERSN REVDAT 1 28-DEC-00 1C6Y 0 JRNL AUTH S.MUNSHI,Z.CHEN,Y.YAN,Y.LI,D.B.OLSEN,H.B.SCHOCK,B.B.GALVIN, JRNL AUTH 2 B.DORSEY,L.C.KUO JRNL TITL AN ALTERNATE BINDING SITE FOR THE P1-P3 GROUP OF A CLASS OF JRNL TITL 2 POTENT HIV-1 PROTEASE INHIBITORS AS A RESULT OF CONCERTED JRNL TITL 3 STRUCTURAL CHANGE IN THE 80S LOOP OF THE PROTEASE. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 56 381 2000 JRNL REFN ISSN 0907-4449 JRNL PMID 10739910 JRNL DOI 10.1107/S0907444900000469 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH Z.CHEN,Y.LI,E.CHEN,D.L.HALL,P.L.DARKE,C.CULBERSON, REMARK 1 AUTH 2 J.A.SHAFER,L.C.KUO REMARK 1 TITL CRYSTAL STRUCTURE AT 1.9-A RESOLUTION OF HUMAN REMARK 1 TITL 2 IMMUNODEFICIENCY VIRUS (HIV) II PROTEASE COMPLEXED WITH REMARK 1 TITL 3 L-735,524, AN ORALLY BIOAVAILABLE INHIBITOR OF THE HIV REMARK 1 TITL 4 PROTEASES REMARK 1 REF J.BIOL.CHEM. V. 269 26344 1994 REMARK 1 REFN ISSN 0021-9258 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 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 : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.180 REMARK 3 FREE R VALUE : 0.310 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 1514 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 45 REMARK 3 SOLVENT ATOMS : 84 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) : NULL 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) : 0.017 REMARK 3 BOND ANGLES (DEGREES) : 2.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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 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 1C6Y COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-JAN-00. REMARK 100 THE DEPOSITION ID IS D_1000001411. 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) : M 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 : 7254 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 (%) : 89.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.05200 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.59 REMARK 200 COMPLETENESS FOR SHELL (%) : 84.0 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 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL 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 (%): 51.98 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.56 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: THE CRYSTAL WAS PREPARED WITH CO REMARK 280 CRYSTALLIZATION METHOD. 9X MUTANT PROTEASE HAS NINE POINT REMARK 280 MUTATIONS COMPARED TO WILD TYPE: L10V,K20M,L24I,S37D,M46I,I54V, REMARK 280 L63P,A71V,V82T THERE IS ONE PROTEASE DIMER IN AN ASYMMETRICAL REMARK 280 UNIT. THE TWO MOLECULES ARE LABELED AS CHAIN A AND CHAIN B. REMARK 280 THERE IS ONE L-735,524 INHIBITOR MOLECULE LABELED AS MK1. REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 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 -X+1/2,Y+1/2,-Z 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 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 29.22000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 44.13000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 29.22000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 44.13000 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 5060 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9560 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -21.0 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 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 1 CA - N - CD ANGL. DEV. = -9.0 DEGREES REMARK 500 PRO B 201 CA - N - CD ANGL. DEV. = -9.6 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 PRO A 9 93.58 -67.63 REMARK 500 GLU A 34 -175.73 -69.49 REMARK 500 GLN A 61 56.83 34.98 REMARK 500 PRO A 79 82.99 -66.28 REMARK 500 PRO B 209 97.40 -66.48 REMARK 500 CYS B 267 60.37 39.45 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 L-735,524 IS N-[2(R)-HYDROXY-1(S)-INDANYL]-5-[(2(S)- REMARK 600 TERTIARY BUTYLAMINOCARBONYL)-4(3-PYRIDYLMETHYL)PIPERAZINO] REMARK 600 -4(S)-HYDROXY-2(R)-PHENYLMETHLPENTANAMIDE. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MK1 B 524 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1C6X RELATED DB: PDB REMARK 900 HIV-1 PROTEASE WITH L-739,622 REMARK 900 RELATED ID: 1C6Z RELATED DB: PDB REMARK 900 HIV-1 PROTEASE WITH SAQUINAVIR REMARK 900 RELATED ID: 1C70 RELATED DB: PDB REMARK 900 HIV-1 PROTEASE WITH L-756,423 DBREF 1C6Y A 1 99 UNP O09893 O09893_9HIV1 1 99 DBREF 1C6Y B 201 299 UNP O09893 O09893_9HIV1 1 99 SEQRES 1 A 99 PRO GLN ILE THR LEU TRP GLN ARG PRO VAL VAL THR ILE SEQRES 2 A 99 LYS ILE GLY GLY GLN LEU MET GLU ALA LEU ILE ASP THR SEQRES 3 A 99 GLY ALA ASP ASP THR VAL LEU GLU GLU MET ASP LEU PRO SEQRES 4 A 99 GLY ARG TRP LYS PRO LYS ILE ILE GLY GLY ILE GLY GLY SEQRES 5 A 99 PHE VAL LYS VAL ARG GLN TYR ASP GLN ILE PRO ILE GLU SEQRES 6 A 99 ILE CYS GLY HIS LYS VAL ILE GLY THR VAL LEU VAL GLY SEQRES 7 A 99 PRO THR PRO THR ASN ILE ILE GLY ARG ASN LEU LEU THR SEQRES 8 A 99 GLN ILE GLY CYS THR LEU ASN PHE SEQRES 1 B 99 PRO GLN ILE THR LEU TRP GLN ARG PRO VAL VAL THR ILE SEQRES 2 B 99 LYS ILE GLY GLY GLN LEU MET GLU ALA LEU ILE ASP THR SEQRES 3 B 99 GLY ALA ASP ASP THR VAL LEU GLU GLU MET ASP LEU PRO SEQRES 4 B 99 GLY ARG TRP LYS PRO LYS ILE ILE GLY GLY ILE GLY GLY SEQRES 5 B 99 PHE VAL LYS VAL ARG GLN TYR ASP GLN ILE PRO ILE GLU SEQRES 6 B 99 ILE CYS GLY HIS LYS VAL ILE GLY THR VAL LEU VAL GLY SEQRES 7 B 99 PRO THR PRO THR ASN ILE ILE GLY ARG ASN LEU LEU THR SEQRES 8 B 99 GLN ILE GLY CYS THR LEU ASN PHE HET MK1 B 524 45 HETNAM MK1 N-[2(R)-HYDROXY-1(S)-INDANYL]-5-[(2(S)-TERTIARY HETNAM 2 MK1 BUTYLAMINOCARBONYL)-4(3-PYRIDYLMETHYL)PIPERAZINO]- HETNAM 3 MK1 4(S)-HYDROXY-2(R)-PHENYLMETHYLPENTANAMIDE HETSYN MK1 INDINAVIR FORMUL 3 MK1 C36 H47 N5 O4 FORMUL 4 HOH *84(H2 O) HELIX 1 1 GLY A 86 THR A 91 1 6 HELIX 2 2 GLN A 92 GLY A 94 5 3 HELIX 3 3 GLY B 286 THR B 291 1 6 SHEET 1 A 4 GLN A 2 THR A 4 0 SHEET 2 A 4 THR B 296 ASN B 298 -1 O LEU B 297 N ILE A 3 SHEET 3 A 4 THR A 96 ASN A 98 -1 O THR A 96 N ASN B 298 SHEET 4 A 4 GLN B 202 ILE B 203 -1 N ILE B 203 O LEU A 97 SHEET 1 B 8 LYS A 43 GLY A 49 0 SHEET 2 B 8 GLY A 52 ILE A 66 -1 O GLY A 52 N GLY A 49 SHEET 3 B 8 HIS A 69 VAL A 77 -1 O HIS A 69 N ILE A 66 SHEET 4 B 8 THR A 31 LEU A 33 1 O THR A 31 N LEU A 76 SHEET 5 B 8 ILE A 84 ILE A 85 -1 N ILE A 84 O VAL A 32 SHEET 6 B 8 GLN A 18 ILE A 24 1 O LEU A 23 N ILE A 85 SHEET 7 B 8 VAL A 10 ILE A 15 -1 N VAL A 11 O ALA A 22 SHEET 8 B 8 GLY A 52 ILE A 66 -1 N GLU A 65 O LYS A 14 SHEET 1 C 8 TRP B 242 GLY B 248 0 SHEET 2 C 8 PHE B 253 ILE B 266 -1 N VAL B 254 O ILE B 247 SHEET 3 C 8 HIS B 269 GLY B 278 -1 N HIS B 269 O ILE B 266 SHEET 4 C 8 VAL B 232 GLU B 234 1 N LEU B 233 O LEU B 276 SHEET 5 C 8 ASN B 283 ILE B 285 -1 N ILE B 284 O VAL B 232 SHEET 6 C 8 GLN B 218 ILE B 224 1 O GLU B 221 N ASN B 283 SHEET 7 C 8 VAL B 210 ILE B 215 -1 N VAL B 211 O ALA B 222 SHEET 8 C 8 PHE B 253 ILE B 266 -1 O GLU B 265 N LYS B 214 SITE 1 AC1 20 ASP A 25 GLY A 48 GLY A 49 THR A 82 SITE 2 AC1 20 ILE A 84 ASP B 225 GLY B 227 ALA B 228 SITE 3 AC1 20 ASP B 229 ASP B 230 GLY B 248 GLY B 249 SITE 4 AC1 20 ILE B 250 THR B 280 PRO B 281 THR B 282 SITE 5 AC1 20 ILE B 284 HOH B 302 HOH B 311 HOH B 328 CRYST1 58.440 88.260 42.940 90.00 90.00 90.00 P 21 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 0.017111 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011330 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023288 0.00000