HEADER VIRAL PROTEIN 01-JUN-07 2Q5U TITLE CRYSTAL STRUCTURE OF IQN17 COMPND MOL_ID: 1; COMPND 2 MOLECULE: FUSION PROTEIN BETWEEN YEAST VARIANT GCN4 AND HIVGP41; COMPND 3 CHAIN: A, B, C; COMPND 4 SYNONYM: IQN17; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: SYNTHETIC PEPTIDE. THE SEQUENCE NATURALLY OCCURS IN SOURCE 4 SACCHAROMYCES CEREVISIAE AND HUMAN IMMUNODEFICIENCY VIRUS. KEYWDS ENVELOPE GLYCOPROTEIN, COILED COIL, VIRAL PROTEIN/VIRAL PROTEIN KEYWDS 2 INHIBITOR, VIRAL PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR V.N.MALASHKEVICH,D.M.ECKERT,L.H.HONG,P.S.KIM REVDAT 3 30-AUG-23 2Q5U 1 REMARK LINK REVDAT 2 24-FEB-09 2Q5U 1 VERSN REVDAT 1 12-JUN-07 2Q5U 0 JRNL AUTH D.M.ECKERT,V.N.MALASHKEVICH,L.H.HONG,P.A.CARR,P.S.KIM JRNL TITL INHIBITING HIV ENTRY: DISCOVERY OF D-PEPTIDE INHIBITORS THAT JRNL TITL 2 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 AUTH D.M.ECKERT,V.N.MALASHKEVICH,P.S.KIM 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 AUTH D.C.CHAN,D.FASS,J.M.BERGER,P.S.KIM REMARK 1 TITL CORE STRUCTURE OF GP41 FROM THE HIV ENVELOPE GLYCOPROTEIN REMARK 1 REF CELL(CAMBRIDGE,MASS.) V. 89 263 1997 REMARK 1 REFN ISSN 0092-8674 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.3.0034 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 18.69 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 3 NUMBER OF REFLECTIONS : 21525 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 + TEST SET) : 0.249 REMARK 3 R VALUE (WORKING SET) : 0.244 REMARK 3 FREE R VALUE : 0.300 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.100 REMARK 3 FREE R VALUE TEST SET COUNT : 2418 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.54 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1574 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.10 REMARK 3 BIN R VALUE (WORKING SET) : 0.2590 REMARK 3 BIN FREE R VALUE SET COUNT : 190 REMARK 3 BIN FREE R VALUE : 0.3290 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1152 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 224 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 21.69 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.01000 REMARK 3 B33 (A**2) : -0.01000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.112 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.119 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.063 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.603 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.915 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.855 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1165 ; 0.019 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1547 ; 1.778 ; 2.012 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 136 ; 2.891 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 51 ;45.352 ;25.882 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 297 ;15.574 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 9 ;19.162 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 180 ; 0.103 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 779 ; 0.007 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 649 ; 0.246 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 838 ; 0.308 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 114 ; 0.191 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 43 ; 0.286 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 20 ; 0.256 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 714 ; 1.448 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1117 ; 2.137 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 502 ; 3.961 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 428 ; 6.472 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 2Q5U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-JUN-07. REMARK 100 THE DEPOSITION ID IS D_1000043186. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 31-MAR-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.8 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) : 0.979 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : X4A REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 24434 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 5.500 REMARK 200 R MERGE (I) : 0.06500 REMARK 200 R SYM (I) : 0.06500 REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.59 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.5 REMARK 200 DATA REDUNDANCY IN SHELL : 2.50 REMARK 200 R MERGE FOR SHELL (I) : 0.32000 REMARK 200 R SYM FOR SHELL (I) : 0.32000 REMARK 200 FOR SHELL : 3.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1CZQ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.84 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 21% PEG4000, 0.15 M AMMONIUM SULFATE, REMARK 280 0.1 M SODIUM ACETATE, PH 4.8, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 294K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 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,Y,-Z REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-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 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 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 22.75750 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 23.94750 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 68.04550 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 22.75750 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 23.94750 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 68.04550 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 22.75750 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 23.94750 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 68.04550 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 22.75750 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 23.94750 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 68.04550 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 300 REMARK: UNIT CELL CONTAINS BIOLOGICAL ASSEMBLY, TRIMER 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 5830 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9480 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -60.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C 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 LEU A 29 CB - CG - CD2 ANGL. DEV. = 10.5 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 ARG A 43 10.90 -64.77 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 CL A 301 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1CZQ RELATED DB: PDB REMARK 900 RELATED ID: 2Q3I RELATED DB: PDB DBREF 2Q5U A 28 45 UNP A3F986 A3F986_9HIV1 566 583 DBREF 2Q5U B 28 45 UNP A3F986 A3F986_9HIV1 566 583 DBREF 2Q5U C 28 45 UNP A3F986 A3F986_9HIV1 566 583 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 B 46 ACE ARG MET LYS GLN ILE GLU ASP LYS ILE GLU GLU ILE SEQRES 2 B 46 GLU SER LYS GLN LYS LYS ILE GLU ASN GLU ILE ALA ARG SEQRES 3 B 46 ILE LYS LYS LEU LEU GLN LEU THR VAL TRP GLY ILE LYS SEQRES 4 B 46 GLN LEU GLN ALA ARG ILE LEU SEQRES 1 C 46 ACE ARG MET LYS GLN ILE GLU ASP LYS ILE GLU GLU ILE SEQRES 2 C 46 GLU SER LYS GLN LYS LYS ILE GLU ASN GLU ILE ALA ARG SEQRES 3 C 46 ILE LYS LYS LEU LEU GLN LEU THR VAL TRP GLY ILE LYS SEQRES 4 C 46 GLN LEU GLN ALA ARG ILE LEU HET ACE A 0 3 HET ACE B 0 3 HET ACE C 0 3 HET CL A 301 1 HETNAM ACE ACETYL GROUP HETNAM CL CHLORIDE ION FORMUL 1 ACE 3(C2 H4 O) FORMUL 4 CL CL 1- FORMUL 5 HOH *224(H2 O) HELIX 1 1 ARG A 1 ARG A 43 1 43 HELIX 2 2 ARG B 1 LEU B 45 1 45 HELIX 3 3 ARG C 1 LEU C 45 1 45 LINK C ACE A 0 N ARG A 1 1555 1555 1.31 LINK C ACE B 0 N ARG B 1 1555 1555 1.32 LINK C ACE C 0 N ARG C 1 1555 1555 1.32 SITE 1 AC1 2 ARG A 1 ARG A 43 CRYST1 45.515 47.895 136.091 90.00 90.00 90.00 I 2 2 2 24 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 0.021971 0.000000 0.000000 0.00000 SCALE2 0.000000 0.020879 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007348 0.00000 HETATM 1 C ACE A 0 15.813 19.764 86.596 1.00 21.33 C HETATM 2 O ACE A 0 15.627 19.870 85.393 1.00 21.22 O HETATM 3 CH3 ACE A 0 15.720 20.932 87.540 1.00 21.96 C