HEADER VIRAL PROTEIN/INHIBITOR 06-SEP-99 1CZQ TITLE CRYSTAL STRUCTURE OF THE D10-P1/IQN17 COMPLEX: A D-PEPTIDE INHIBITOR TITLE 2 OF HIV-1 ENTRY BOUND TO THE GP41 COILED-COIL POCKET. COMPND MOL_ID: 1; COMPND 2 MOLECULE: FUSION PROTEIN BETWEEN THE HYDROPHOBIC POCKET OF HIV GP41 COMPND 3 AND GCN4-PIQI; COMPND 4 CHAIN: A; COMPND 5 FRAGMENT: HYDROPHOBIC POCKET; COMPND 6 SYNONYM: IQN17; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: D-PEPTIDE INHIBITOR; COMPND 10 CHAIN: D; COMPND 11 SYNONYM: D10-P1; COMPND 12 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE, HUMAN SOURCE 3 IMMUNODEFICIENCY VIRUS; SOURCE 4 ORGANISM_COMMON: BAKER'S YEAST,; SOURCE 5 ORGANISM_TAXID: 4932,12721; SOURCE 6 STRAIN: ,; SOURCE 7 MOL_ID: 2; SOURCE 8 SYNTHETIC: YES; SOURCE 9 OTHER_DETAILS: THIS PEPTIDE WAS CHEMICALLY SYNTHESIZED KEYWDS ENVELOPE GLYCOPROTEIN, VIRAL PROTEIN-INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR D.M.ECKERT,V.N.MALASHKEVICH,L.H.HONG,P.A.CARR,P.S.KIM REVDAT 5 13-JUL-11 1CZQ 1 VERSN REVDAT 4 24-FEB-09 1CZQ 1 VERSN REVDAT 3 01-APR-03 1CZQ 1 JRNL REVDAT 2 05-NOV-99 1CZQ 1 JRNL REVDAT 1 13-OCT-99 1CZQ 0 JRNL AUTH D.M.ECKERT,V.N.MALASHKEVICH,L.H.HONG,P.A.CARR,P.S.KIM JRNL TITL INHIBITING HIV-1 ENTRY: DISCOVERY OF D-PEPTIDE INHIBITORS JRNL TITL 2 THAT TARGET THE GP41 COILED-COIL POCKET. JRNL REF CELL(CAMBRIDGE,MASS.) V. 99 103 1999 JRNL REFN ISSN 0092-8674 JRNL PMID 10520998 JRNL DOI 10.1016/S0092-8674(00)80066-5 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 TITL CRYSTAL STRUCTURE OF GCN4-PIQI, A TRIMERIC COILED-COIL WITH REMARK 1 TITL 2 BURIED POLAR RESIDUES. REMARK 1 REF J.MOL.BIOL. V. 284 859 1998 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 2 REMARK 1 TITL CORE STRUCTURE OF GP41 FROM THE HIV ENVELOPE GLYCOPROTEIN REMARK 1 REF CELL(CAMBRIDGE,MASS.) V. 89 15613 1997 REMARK 1 REFN ISSN 0092-8674 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.5 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) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 646169.440 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.6 REMARK 3 NUMBER OF REFLECTIONS : 13549 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.214 REMARK 3 FREE R VALUE : 0.245 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1362 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.007 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.59 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 96.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2008 REMARK 3 BIN R VALUE (WORKING SET) : 0.2330 REMARK 3 BIN FREE R VALUE : 0.2700 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 219 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.018 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 515 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 150 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 29.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 3.61000 REMARK 3 B22 (A**2) : 3.61000 REMARK 3 B33 (A**2) : -7.22000 REMARK 3 B12 (A**2) : 1.74000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.18 REMARK 3 ESD FROM SIGMAA (A) : 0.09 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.12 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : 1.50 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 15.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.00 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 0.956 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.503 ; 3.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.853 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.676 ; 3.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.39 REMARK 3 BSOL : 58.34 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 : PROTEIN_REP_D.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARA REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1CZQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-SEP-99. REMARK 100 THE RCSB ID CODE IS RCSB009653. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 24-MAR-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X4A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.1197, 1.1393, 1.1403, 1.1399 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13604 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 35.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.8 REMARK 200 DATA REDUNDANCY : 6.500 REMARK 200 R MERGE (I) : 0.04800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 16.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.55 REMARK 200 COMPLETENESS FOR SHELL (%) : 86.8 REMARK 200 DATA REDUNDANCY IN SHELL : 6.10 REMARK 200 R MERGE FOR SHELL (I) : 0.23500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: MLPHARE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.70 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10% PEG 4000 0.1 M SODIUM CITRATE 20% REMARK 280 2-PROPANOL, PH 5.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 3 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 REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z REMARK 290 6555 -X,-X+Y,-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 -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 0.00000 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 0.00000 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 0.00000 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 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: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 9460 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10980 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -115.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, D 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 -0.500000 -0.866025 0.000000 41.82900 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 20.91450 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 36.22498 REMARK 350 BIOMT3 3 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 CL CL A1001 LIES ON A SPECIAL POSITION. REMARK 375 HOH A1020 LIES ON A SPECIAL POSITION. REMARK 375 HOH A1109 LIES ON A SPECIAL POSITION. REMARK 375 HOH A1107 LIES ON A SPECIAL POSITION. REMARK 375 HOH A1063 LIES ON A SPECIAL POSITION. REMARK 375 HOH A1088 LIES ON A SPECIAL POSITION. 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 43 NE - CZ - NH2 ANGL. DEV. = -6.1 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A1009 DISTANCE = 5.06 ANGSTROMS REMARK 525 HOH A1010 DISTANCE = 5.57 ANGSTROMS REMARK 525 HOH A1014 DISTANCE = 5.44 ANGSTROMS REMARK 525 HOH A1030 DISTANCE = 6.00 ANGSTROMS REMARK 525 HOH A1037 DISTANCE = 5.62 ANGSTROMS REMARK 525 HOH A1040 DISTANCE = 5.89 ANGSTROMS REMARK 525 HOH A1064 DISTANCE = 6.41 ANGSTROMS REMARK 525 HOH A1072 DISTANCE = 5.64 ANGSTROMS REMARK 525 HOH A1082 DISTANCE = 5.95 ANGSTROMS REMARK 525 HOH A1088 DISTANCE = 5.07 ANGSTROMS REMARK 525 HOH A1090 DISTANCE = 5.69 ANGSTROMS REMARK 525 HOH A1094 DISTANCE = 5.04 ANGSTROMS REMARK 525 HOH A1104 DISTANCE = 5.13 ANGSTROMS REMARK 525 HOH A1112 DISTANCE = 5.22 ANGSTROMS REMARK 525 HOH A1113 DISTANCE = 5.32 ANGSTROMS REMARK 525 HOH D 84 DISTANCE = 6.08 ANGSTROMS REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 1001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR CHAIN D OF D-PEPTIDE INHIBITOR DBREF 1CZQ A 29 45 GB 1587615 U36871 565 581 DBREF 1CZQ D 0 16 PDB 1CZQ 1CZQ 0 16 SEQRES 1 A 46 ACE ARG MET LYS GLN ILE GLU ASP LYS ILE GLU GLU ILE SEQRES 2 A 46 GLU SER LYS GLN LYS LYS ILE GLU ASN GLU ILE ALA ARG SEQRES 3 A 46 ILE LYS LYS LEU LEU GLN LEU THR VAL TRP GLY ILE LYS SEQRES 4 A 46 GLN LEU GLN ALA ARG ILE LEU SEQRES 1 D 17 ACE GLY DAL DCY DGL DAL DAR DHI DAR DGL DTR DAL DTR SEQRES 2 D 17 DLE DCY DAL DAL HET ACE A 0 3 HET ACE D 0 3 HET DAL D 2 5 HET DCY D 3 6 HET DGL D 4 9 HET DAL D 5 5 HET DAR D 6 11 HET DHI D 7 10 HET DAR D 8 11 HET DGL D 9 9 HET DTR D 10 14 HET DAL D 11 5 HET DTR D 12 14 HET DLE D 13 8 HET DCY D 14 6 HET DAL D 15 5 HET DAL D 16 6 HET CL A1001 1 HETNAM ACE ACETYL GROUP HETNAM DAL D-ALANINE HETNAM DCY D-CYSTEINE HETNAM DGL D-GLUTAMIC ACID HETNAM DAR D-ARGININE HETNAM DHI D-HISTIDINE HETNAM DTR D-TRYPTOPHAN HETNAM DLE D-LEUCINE HETNAM CL CHLORIDE ION FORMUL 1 ACE 2(C2 H4 O) FORMUL 2 DAL 5(C3 H7 N O2) FORMUL 2 DCY 2(C3 H7 N O2 S) FORMUL 2 DGL 2(C5 H9 N O4) FORMUL 2 DAR 2(C6 H15 N4 O2 1+) FORMUL 2 DHI C6 H10 N3 O2 1+ FORMUL 2 DTR 2(C11 H12 N2 O2) FORMUL 2 DLE C6 H13 N O2 FORMUL 3 CL CL 1- FORMUL 4 HOH *150(H2 O) HELIX 1 1 ARG A 1 LEU A 45 1 45 SSBOND 1 DCY D 3 DCY D 14 1555 1555 2.05 LINK C ACE A 0 N ARG A 1 1555 1555 1.33 LINK C ACE D 0 N GLY D 1 1555 1555 1.34 LINK C GLY D 1 N DAL D 2 1555 1555 1.33 LINK C DAL D 2 N DCY D 3 1555 1555 1.32 LINK C DCY D 3 N DGL D 4 1555 1555 1.32 LINK SG DCY D 3 SG DCY D 14 1555 1555 2.05 LINK C DGL D 4 N DAL D 5 1555 1555 1.33 LINK C DAL D 5 N DAR D 6 1555 1555 1.33 LINK C DAR D 6 N DHI D 7 1555 1555 1.32 LINK C DHI D 7 N DAR D 8 1555 1555 1.33 LINK C DAR D 8 N DGL D 9 1555 1555 1.33 LINK C DGL D 9 N DTR D 10 1555 1555 1.33 LINK C DTR D 10 N DAL D 11 1555 1555 1.33 LINK C DAL D 11 N DTR D 12 1555 1555 1.34 LINK C DTR D 12 N DLE D 13 1555 1555 1.33 LINK C DLE D 13 N DCY D 14 1555 1555 1.34 LINK C DCY D 14 N DAL D 15 1555 1555 1.33 LINK C DAL D 15 N DAL D 16 1555 1555 1.33 SITE 1 AC1 1 GLN A 16 SITE 1 AC2 33 LEU A 32 VAL A 34 TRP A 35 LYS A 38 SITE 2 AC2 33 GLN A 41 ARG A 43 ILE A 44 LEU A 45 SITE 3 AC2 33 HOH A1057 HOH A1065 HOH A1077 HOH A1083 SITE 4 AC2 33 HOH A1086 HOH A1106 HOH A1114 HOH D 47 SITE 5 AC2 33 HOH D 52 HOH D 65 HOH D 67 HOH D 71 SITE 6 AC2 33 HOH D 72 HOH D 73 HOH D 74 HOH D 79 SITE 7 AC2 33 HOH D 83 HOH D 85 HOH D 86 HOH D 87 SITE 8 AC2 33 HOH D 88 HOH D 111 HOH D 140 HOH D 142 SITE 9 AC2 33 HOH D 143 CRYST1 41.829 41.829 84.817 90.00 90.00 120.00 P 3 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 0.023907 0.013803 0.000000 0.00000 SCALE2 0.000000 0.027605 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011790 0.00000 HETATM 1 C ACE A 0 26.773 9.004 -22.017 1.00 54.85 C HETATM 2 O ACE A 0 25.855 9.820 -22.124 1.00 54.90 O HETATM 3 CH3 ACE A 0 26.830 7.813 -22.925 1.00 54.89 C