PDB Short entry for 1CZB HEADER TRANSFERASE 01-SEP-99 1CZB TITLE ATOMIC RESOLUTION ASV INTEGRASE CORE DOMAIN FROM HEPES COMPND MOL_ID: 1; COMPND 2 MOLECULE: AVIAN SARCOMA VIRUS INTEGRASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: CATALYTIC CORE DOMAIN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: AVIAN SARCOMA VIRUS; SOURCE 3 ORGANISM_TAXID: 11876; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_PLASMID: PRC23IN(52-207) KEYWDS MIXED BETA-SHEET SURROUNDED BY ALPHA-HELICES, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.LUBKOWSKI,Z.DAUTER,F.YANG,J.ALEXANDRATOS,G.MERKEL,A.M.SKALKA, AUTHOR 2 A.WLODAWER REVDAT 4 04-OCT-17 1CZB 1 REMARK REVDAT 3 24-FEB-09 1CZB 1 VERSN REVDAT 2 02-APR-00 1CZB 3 ATOM JRNL REMARK COMPND REVDAT 2 2 3 SEQRES REVDAT 1 08-SEP-99 1CZB 0 JRNL AUTH J.LUBKOWSKI,Z.DAUTER,F.YANG,J.ALEXANDRATOS,G.MERKEL, JRNL AUTH 2 A.M.SKALKA,A.WLODAWER JRNL TITL ATOMIC RESOLUTION STRUCTURES OF THE CORE DOMAIN OF AVIAN JRNL TITL 2 SARCOMA VIRUS INTEGRASE AND ITS D64N MUTANT. JRNL REF BIOCHEMISTRY V. 38 13512 1999 JRNL REFN ISSN 0006-2960 JRNL PMID 10521258 JRNL DOI 10.1021/BI991362Q REMARK 2 REMARK 2 RESOLUTION. 1.06 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) : 1.06 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 94.4 REMARK 3 CROSS-VALIDATION METHOD : NULL 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) : 0.143 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.143 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.164 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 1490 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 74543 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.132 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 6355 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1086 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 137 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1189.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 1001.0 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 1 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 1157 REMARK 3 NUMBER OF RESTRAINTS : 1443 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.016 REMARK 3 ANGLE DISTANCES (A) : 0.031 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.024 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.347 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.083 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.098 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.006 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.046 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.068 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1CZB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-SEP-99. REMARK 100 THE DEPOSITION ID IS D_1000009641. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 21-MAR-98 REMARK 200 TEMPERATURE (KELVIN) : 95.0 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X9B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.98 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MAR REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 69419 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.060 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.0 REMARK 200 DATA REDUNDANCY : 3.600 REMARK 200 R MERGE (I) : 0.03400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 32.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.06 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.08 REMARK 200 COMPLETENESS FOR SHELL (%) : 86.7 REMARK 200 DATA REDUNDANCY IN SHELL : 4.20 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: AB INITIO 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 (%): 48.67 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 4000, 10% ISOPROPANOL, 100 MM REMARK 280 HEPES PH 7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K 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 40.07000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 32.68500 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 32.68500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 60.10500 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 32.68500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 32.68500 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 20.03500 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 32.68500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 32.68500 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 60.10500 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 32.68500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 32.68500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 20.03500 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 40.07000 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: THE BIOLOGICAL ASSEMBLY IS (AT LEAST) A DIMER CONSTRUCTED REMARK 300 FROM CHAIN A AND A SYMMETRY PARTNER GENERATED BY THE TWO-FOLD REMARK 300 SYMMETRY OPERATOR. 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 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 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 80.14000 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 PRO A 48 REMARK 465 LEU A 49 REMARK 465 ARG A 50 REMARK 465 GLU A 51 REMARK 465 ILE A 146 REMARK 465 PRO A 147 REMARK 465 GLY A 148 REMARK 465 ASN A 149 REMARK 465 SER A 150 REMARK 465 GLN A 151 REMARK 465 PHE A 199 REMARK 465 GLU A 200 REMARK 465 ARG A 201 REMARK 465 GLY A 202 REMARK 465 GLU A 203 REMARK 465 ASN A 204 REMARK 465 THR A 205 REMARK 465 LYS A 206 REMARK 465 THR A 207 REMARK 465 ASN A 208 REMARK 465 LEU A 209 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 53 NE - CZ - NH1 ANGL. DEV. = -6.5 DEGREES REMARK 500 ARG A 53 NE - CZ - NH2 ANGL. DEV. = 3.3 DEGREES REMARK 500 ARG A 70 NE - CZ - NH2 ANGL. DEV. = -5.0 DEGREES REMARK 500 ARG A 74 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 GLN A 92 CB - CA - C ANGL. DEV. = -17.1 DEGREES REMARK 500 ARG A 114 CD - NE - CZ ANGL. DEV. = 19.5 DEGREES REMARK 500 SER A 124 N - CA - CB ANGL. DEV. = -20.6 DEGREES REMARK 500 CYS A 125 CB - CA - C ANGL. DEV. = -13.7 DEGREES REMARK 500 CYS A 125 N - CA - CB ANGL. DEV. = 13.3 DEGREES REMARK 500 CYS A 125 CA - CB - SG ANGL. DEV. = -14.3 DEGREES REMARK 500 ARG A 168 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 ARG A 179 NE - CZ - NH2 ANGL. DEV. = -3.2 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 GLN A 153 52.38 -144.06 REMARK 500 LYS A 178 -125.33 -130.13 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 GLN A 92 0.10 SIDE CHAIN 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 EPE A 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1ASV RELATED DB: PDB REMARK 900 SAME PROTEIN AT LOWER RESOLUTION REMARK 900 RELATED ID: 1CXQ RELATED DB: PDB REMARK 900 RELATED ID: 1CXU RELATED DB: PDB REMARK 900 RELATED ID: 1CZ9 RELATED DB: PDB REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE APPARENT DISCREPANCY BETWEEN THE SEQUENCE PRESENTED REMARK 999 HERE AND THE "POL_RSVP" SEQUENCE IS A RESULT OF VIRAL REMARK 999 STRAIN VARIATION. THE STRAIN USED FOR THIS WORK, "ROUS REMARK 999 SARCOMA VIRUS SCHMIDT-RUPPIN B", COMPARED TO "POL-RSVP" REMARK 999 SEQUENCE DIFFERS AT TWO POSITIONS WITH THE CONSERVATIVE REMARK 999 AMINO ACID RESIDUE DIFFERENCES NOTED (VAL->ALA 101 & REMARK 999 ARG->LYS 166). DBREF 1CZB A 52 207 UNP P03354 POL_RSVP 624 779 SEQADV 1CZB PRO A 48 UNP P03354 INSERTION SEQADV 1CZB LEU A 49 UNP P03354 INSERTION SEQADV 1CZB ARG A 50 UNP P03354 INSERTION SEQADV 1CZB GLU A 51 UNP P03354 INSERTION SEQADV 1CZB GLY A 52 UNP P03354 PRO 624 CONFLICT SEQADV 1CZB ALA A 101 UNP P03354 VAL 673 SEE REMARK 999 SEQADV 1CZB LYS A 166 UNP P03354 ARG 738 SEE REMARK 999 SEQADV 1CZB ASN A 208 UNP P03354 INSERTION SEQADV 1CZB LEU A 209 UNP P03354 INSERTION SEQRES 1 A 162 PRO LEU ARG GLU GLY ARG GLY LEU GLY PRO LEU GLN ILE SEQRES 2 A 162 TRP GLN THR ASP PHE THR LEU GLU PRO ARG MET ALA PRO SEQRES 3 A 162 ARG SER TRP LEU ALA VAL THR VAL ASP THR ALA SER SER SEQRES 4 A 162 ALA ILE VAL VAL THR GLN HIS GLY ARG VAL THR SER VAL SEQRES 5 A 162 ALA ALA GLN HIS HIS TRP ALA THR ALA ILE ALA VAL LEU SEQRES 6 A 162 GLY ARG PRO LYS ALA ILE LYS THR ASP ASN GLY SER CYS SEQRES 7 A 162 PHE THR SER LYS SER THR ARG GLU TRP LEU ALA ARG TRP SEQRES 8 A 162 GLY ILE ALA HIS THR THR GLY ILE PRO GLY ASN SER GLN SEQRES 9 A 162 GLY GLN ALA MET VAL GLU ARG ALA ASN ARG LEU LEU LYS SEQRES 10 A 162 ASP LYS ILE ARG VAL LEU ALA GLU GLY ASP GLY PHE MET SEQRES 11 A 162 LYS ARG ILE PRO THR SER LYS GLN GLY GLU LEU LEU ALA SEQRES 12 A 162 LYS ALA MET TYR ALA LEU ASN HIS PHE GLU ARG GLY GLU SEQRES 13 A 162 ASN THR LYS THR ASN LEU HET EPE A 300 15 HETNAM EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID HETSYN EPE HEPES FORMUL 2 EPE C8 H18 N2 O4 S FORMUL 3 HOH *137(H2 O) HELIX 1 1 PRO A 69 ALA A 72 5 4 HELIX 2 2 THR A 97 GLY A 113 1 17 HELIX 3 3 GLY A 123 SER A 128 1 6 HELIX 4 4 SER A 128 GLY A 139 1 12 HELIX 5 5 GLN A 153 ASP A 174 1 22 HELIX 6 6 PRO A 181 SER A 183 5 3 HELIX 7 7 LYS A 184 HIS A 198 1 15 SHEET 1 A 5 ILE A 88 HIS A 93 0 SHEET 2 A 5 TRP A 76 ASP A 82 -1 N TRP A 76 O HIS A 93 SHEET 3 A 5 ILE A 60 LEU A 67 -1 O GLN A 62 N VAL A 81 SHEET 4 A 5 ALA A 117 LYS A 119 1 O ALA A 117 N TRP A 61 SHEET 5 A 5 ALA A 141 THR A 143 1 O ALA A 141 N ILE A 118 CISPEP 1 ALA A 72 PRO A 73 0 5.79 SITE 1 AC1 16 PRO A 73 SER A 75 TRP A 76 GLY A 94 SITE 2 AC1 16 ARG A 95 VAL A 96 ARG A 137 TRP A 138 SITE 3 AC1 16 LYS A 166 LYS A 191 ALA A 195 HOH A 484 SITE 4 AC1 16 HOH A 511 HOH A 512 HOH A 602 HOH A 604 CRYST1 65.370 65.370 80.140 90.00 90.00 90.00 P 43 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 0.015298 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015298 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012478 0.00000