HEADER HYDROLASE/HYDROLASE INHIBITOR 02-DEC-98 6FIV TITLE STRUCTURAL STUDIES OF HIV AND FIV PROTEASES COMPLEXED WITH AN TITLE 2 EFFICIENT INHIBITOR OF FIV PR COMPND MOL_ID: 1; COMPND 2 MOLECULE: RETROPEPSIN; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.23.16; COMPND 5 ENGINEERED: YES; COMPND 6 OTHER_DETAILS: COMPLEXED WITH TL-3-093 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: FELINE IMMUNODEFICIENCY VIRUS; SOURCE 3 ORGANISM_TAXID: 11674; SOURCE 4 STRAIN: (ISOLATE PETALUMA); SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS FIV PROTEASE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR M.LI,T.LEE,G.MORRIS,G.LACO,C.WONG,A.OLSON,J.ELDER,A.WLODAWER, AUTHOR 2 A.GUSTCHINA REVDAT 8 27-DEC-23 6FIV 1 REMARK SEQADV LINK REVDAT 7 13-JUL-11 6FIV 1 VERSN REVDAT 6 08-DEC-09 6FIV 1 HET HETATM HETNAM FORMUL REVDAT 6 2 1 REMARK REVDAT 5 24-FEB-09 6FIV 1 VERSN REVDAT 4 01-APR-03 6FIV 1 JRNL REVDAT 3 03-FEB-00 6FIV 1 JRNL REVDAT 2 22-DEC-99 6FIV 1 HEADER COMPND REMARK JRNL REVDAT 2 2 1 ATOM SOURCE SEQRES REVDAT 1 09-DEC-98 6FIV 0 JRNL AUTH M.LI,G.M.MORRIS,T.LEE,G.S.LACO,C.H.WONG,A.J.OLSON,J.H.ELDER, JRNL AUTH 2 A.WLODAWER,A.GUSTCHINA JRNL TITL STRUCTURAL STUDIES OF FIV AND HIV-1 PROTEASES COMPLEXED WITH JRNL TITL 2 AN EFFICIENT INHIBITOR OF FIV PROTEASE JRNL REF PROTEINS V. 38 29 2000 JRNL REFN ISSN 0887-3585 JRNL PMID 10651036 JRNL DOI 10.1002/(SICI)1097-0134(20000101)38:1<29::AID-PROT4>3.0.CO;2 JRNL DOI 2 -N REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.WLODAWER,A.GUSTCHINA,L.RESHETNIKOVA,J.LUBKOWSKI,A.ZDANOV, REMARK 1 AUTH 2 K.HUI,E.ANGLETON,W.FARMERIE,M.GOODENOW,D.BHATT,L.ZHANG, REMARK 1 AUTH 3 B.DUNN REMARK 1 TITL STRUCTURAL STUDIES OF HIV AND FIV PROTEASES COMPLEXED WITH REMARK 1 TITL 2 AN EFFICIENT INHIBITOR OF FIV PR REMARK 1 REF NAT.STRUCT.BIOL. V. 2 480 1995 REMARK 1 REFN ISSN 1072-8368 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 82.5 REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT 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) : 0.155 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.157 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.266 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 11.900 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 879 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 7385 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.147 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.149 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.251 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 11.800 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 789 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 6663 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 891 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 38 REMARK 3 SOLVENT ATOMS : 76 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 991.00 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 0.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 2 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 4069 REMARK 3 NUMBER OF RESTRAINTS : 3813 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 ANGLE DISTANCES (A) : 0.024 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.027 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.030 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.041 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.007 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.000 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.089 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.000 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: MOEWS & KRETSINGER REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 ANISOTROPIC SCALING APPLIED BY METHOD PF PARKIN, MOEZZI & HOPE, REMARK 3 J.APPL.CRYST.28(1995)53-56 REMARK 4 REMARK 4 6FIV COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-DEC-98. REMARK 100 THE DEPOSITION ID IS D_1000000199. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NOV-97 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 4.5-7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS HI-STAR REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SAINT REMARK 200 DATA SCALING SOFTWARE : SAINT REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 8437 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 3.1 REMARK 200 DATA REDUNDANCY : 6.300 REMARK 200 R MERGE (I) : 0.07800 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) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.97 REMARK 200 COMPLETENESS FOR SHELL (%) : 75.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.37200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.980 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER 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 (%): 44.40 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SAMPLE: 3.4MG/ML Q99V IN 25MM IMIDAZOL REMARK 280 BUFFER AT PH 7.0 WITH 1MM EDTA AND 10MM DTT. WELL SOLUTION: 1.6M REMARK 280 AMMONIUM SULFATE IN SODIUM ACETATE BUFFER AT PH 4.5 MIXING REMARK 280 SAMPLE AND WELL SOLLUTION 1:1, PH 5.0 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 24.45333 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 48.90667 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 48.90667 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 24.45333 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 3960 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10580 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -50.0 KCAL/MOL 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 350 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 48.90667 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 HOH A 301 LIES ON A SPECIAL POSITION. 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 VAL A 4 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 64 CG CD NE CZ NH1 NH2 REMARK 480 ARG A 76 NE CZ NH1 NH2 REMARK 480 GLU A 78 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 NH1 ARG A 76 O HOH A 304 1.99 REMARK 500 NH2 ARG A 76 O HOH A 304 2.17 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 LYS A 46 -124.26 51.50 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 THE INHIBITOR IS A C2 SYMMETRIC HIV PROTEASE REMARK 630 REMARK 630 MOLECULE TYPE: PEPTIDE-LIKE INHIBITOR REMARK 630 MOLECULE NAME: BENZYL [(1S,4S,7S,8R,9R,10S,13S,16S)-7,10-DIBENZYL- REMARK 630 8,9-DIHYDROXY-1,16-DIMETHYL-4,13-BIS(1-METHYLETHYL)-2,5,12,15,18- REMARK 630 PENTAOXO-20-PHENYL-19-OXA-3,6,11,14,17-PENTAAZAICOS-1-YL]CARBAMATE 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 3TL A 201 REMARK 630 SOURCE: NULL REMARK 630 TAXONOMY: NULL REMARK 630 SUBCOMP: PHQ ALA VAL PHL PHL VAL ALA PHQ 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 SO4 A 251 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 3TL A 201 DBREF 6FIV A 4 116 UNP P16088 POL_FIVPE 42 154 SEQADV 6FIV VAL A 99 UNP P16088 GLN 137 CONFLICT SEQRES 1 A 113 VAL GLY THR THR THR THR LEU GLU LYS ARG PRO GLU ILE SEQRES 2 A 113 LEU ILE PHE VAL ASN GLY TYR PRO ILE LYS PHE LEU LEU SEQRES 3 A 113 ASP THR GLY ALA ASP ILE THR ILE LEU ASN ARG ARG ASP SEQRES 4 A 113 PHE GLN VAL LYS ASN SER ILE GLU ASN GLY ARG GLN ASN SEQRES 5 A 113 MET ILE GLY VAL GLY GLY GLY LYS ARG GLY THR ASN TYR SEQRES 6 A 113 ILE ASN VAL HIS LEU GLU ILE ARG ASP GLU ASN TYR LYS SEQRES 7 A 113 THR GLN CYS ILE PHE GLY ASN VAL CYS VAL LEU GLU ASP SEQRES 8 A 113 ASN SER LEU ILE VAL PRO LEU LEU GLY ARG ASP ASN MET SEQRES 9 A 113 ILE LYS PHE ASN ILE ARG LEU VAL MET HET SO4 A 251 5 HET 3TL A 201 33 HETNAM SO4 SULFATE ION HETNAM 3TL BENZYL [(1S,4S,7S,8R,9R,10S,13S,16S)-7,10-DIBENZYL-8,9- HETNAM 2 3TL DIHYDROXY-1,16-DIMETHYL-4,13-BIS(1-METHYLETHYL)-2,5, HETNAM 3 3TL 12,15,18-PENTAOXO-20-PHENYL-19-OXA-3,6,11,14,17- HETNAM 4 3TL PENTAAZAICOS-1-YL]CARBAMATE HETSYN 3TL TL-3, C2 SYMMETRIC INHIBITOR FORMUL 2 SO4 O4 S 2- FORMUL 3 3TL C50 H64 N6 O10 FORMUL 4 HOH *76(H2 O) HELIX 1 1 ARG A 40 ASP A 42 5 3 HELIX 2 2 ARG A 104 MET A 107 1 4 SHEET 1 A 5 GLN A 83 GLY A 87 0 SHEET 2 A 5 VAL A 71 ILE A 75 -1 N ILE A 75 O GLN A 83 SHEET 3 A 5 GLU A 15 VAL A 20 -1 N PHE A 19 O GLU A 74 SHEET 4 A 5 TYR A 23 LEU A 29 -1 N PHE A 27 O ILE A 16 SHEET 5 A 5 PRO A 100 LEU A 102 1 N PRO A 100 O LEU A 28 SHEET 1 B 4 ILE A 37 ASN A 39 0 SHEET 2 B 4 VAL A 89 LEU A 92 1 N CYS A 90 O LEU A 38 SHEET 3 B 4 GLY A 62 TYR A 68 -1 N TYR A 68 O VAL A 89 SHEET 4 B 4 ARG A 53 ILE A 57 -1 N MET A 56 O LYS A 63 LINK C2 3TL A 201 C2 3TL A 201 1555 5555 1.54 SITE 1 AC1 5 LYS A 12 ARG A 13 TYR A 23 LYS A 46 SITE 2 AC1 5 HOH A 364 SITE 1 AC2 12 PRO A 24 ASP A 30 GLY A 32 ALA A 33 SITE 2 AC2 12 ASP A 34 ASN A 55 MET A 56 ILE A 57 SITE 3 AC2 12 GLY A 58 VAL A 59 LEU A 101 HOH A 301 CRYST1 50.760 50.760 73.360 90.00 90.00 120.00 P 31 2 1 6 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 0.019700 0.011374 0.000000 0.00000 SCALE2 0.000000 0.022748 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013631 0.00000