PDB Short entry for 1VPW HEADER TRANSCRIPTION/DNA 27-FEB-98 1VPW TITLE STRUCTURE OF THE PURR MUTANT, L54M, BOUND TO HYPOXANTHINE AND PURF TITLE 2 OPERATOR DNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'- COMPND 3 D(*TP*AP*CP*GP*CP*AP*AP*AP*CP*GP*TP*TP*TP*GP*CP*GP*T )-3'); COMPND 4 CHAIN: B; COMPND 5 SYNONYM: PURF OPERATOR; COMPND 6 ENGINEERED: YES; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: PURINE REPRESSOR; COMPND 9 CHAIN: A; COMPND 10 ENGINEERED: YES; COMPND 11 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 4 ORGANISM_TAXID: 32630; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 7 ORGANISM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS COMPLEX (DNA-BINDING PROTEIN-DNA), DNA-BINDING REGULATORY PROTEIN, KEYWDS 2 MINOR GROOVE BENDING, TRANSCRIPTION-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR D.N.ARVIDSON,F.LU,C.FABER,H.ZALKIN,R.G.BRENNAN REVDAT 4 03-NOV-21 1VPW 1 REMARK SEQADV REVDAT 3 15-FEB-17 1VPW 1 AUTHOR SOURCE VERSN REVDAT 2 24-FEB-09 1VPW 1 VERSN REVDAT 1 17-JUN-98 1VPW 0 JRNL AUTH D.N.ARVIDSON,F.LU,C.FABER,H.ZALKIN,R.G.BRENNAN JRNL TITL THE STRUCTURE OF PURR MUTANT L54M SHOWS AN ALTERNATIVE ROUTE JRNL TITL 2 TO DNA KINKING. JRNL REF NAT.STRUCT.BIOL. V. 5 436 1998 JRNL REFN ISSN 1072-8368 JRNL PMID 9628480 JRNL DOI 10.1038/NSB0698-436 REMARK 2 REMARK 2 RESOLUTION. 2.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.300 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.0 REMARK 3 NUMBER OF REFLECTIONS : 18486 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.174 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2652 REMARK 3 NUCLEIC ACID ATOMS : 345 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 50 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.013 ; 2.500 ; 3103 REMARK 3 BOND ANGLES (DEGREES) : 1.280 ; 4.000 ; 4252 REMARK 3 TORSION ANGLES (DEGREES) : 20.930; 0.000 ; 1757 REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : 0.017 ; 3.000 ; 67 REMARK 3 GENERAL PLANES (A) : 0.010 ; 5.000 ; 414 REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : 5.827 ; 2.500 ; 2706 REMARK 3 NON-BONDED CONTACTS (A) : 0.065 ; 15.000; 312 REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : 0.80 REMARK 3 BSOL : 150.0 REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : ENGH AND HUBER REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : TNT REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1VPW COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY NDB. REMARK 100 THE DEPOSITION ID IS D_1000177093. 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 : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL 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 : 18486 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.700 REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 8.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 79.0 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: NULL 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 (%): 68.83 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.95 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 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 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z 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 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 40.95000 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 40.95000 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 87.94500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 47.46500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 87.94500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 47.46500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 40.95000 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 87.94500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 47.46500 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 40.95000 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 87.94500 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 47.46500 REMARK 290 SMTRY3 8 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 300 REMARK: THE COMPLEX LIES ON A CRYSTALLOGRAPHIC TWO-FOLD AXIS, AND REMARK 300 ONLY ONE MONOMER-DNA HALF-SITE CONSTITUTES THE ASYMMETRIC REMARK 300 UNIT. THE COORDINATES COMPRISE ONE REPRESSOR MONOMER AND REMARK 300 ONE DNA STRAND FOR THE ENTIRE SITE. THE FULL COMPLEX CAN REMARK 300 BE CONSTRUCTED BY GENERATING THE SECOND HALF USING THE REMARK 300 CRYSTALLOGRAPHIC SYMMETRY OPERATION (X, -Y, -Z). 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: TETRAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, 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 0.00000 REMARK 400 REMARK 400 COMPOUND REMARK 400 THE LEUCINE 54 LEVERS INTERDIGITATE FROM THE MINOR GROOVE REMARK 400 SIDE BETWEEN THE CENTRAL C.G:G.C BASE PAIR STEP OF PURF REMARK 400 OPERATOR DNA. THE OPERATOR DNA IS THUS KINKED BY 50 REMARK 400 DEGREES. SUBSTITUTING LEU 54 WITH MET YIELDS A MUTANT PURR REMARK 400 THAT BINDS AND BENDS DNA SIMILARLY TO WILD TYPE. HOWEVER, REMARK 400 THE ROUTES OF THE SIDE CHAINS AND THEIR CONTACTS TO THE REMARK 400 C-G:G-C BASE PAIR STEP DIFFER. 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 ALA A 2 REMARK 465 ARG A 341 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 ARG A 340 C ARG A 340 O 0.180 REMARK 500 REMARK 500 REMARK: NULL 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 127 C - N - CD ANGL. DEV. = -12.7 DEGREES REMARK 500 ARG A 340 NE - CZ - NH2 ANGL. DEV. = 3.7 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 LYS A 24 48.54 39.86 REMARK 500 HIS A 58 133.74 172.61 REMARK 500 SER A 124 -67.28 71.89 REMARK 500 ASP A 146 31.23 -144.17 REMARK 500 ARG A 179 -4.79 -140.42 REMARK 500 PHE A 221 -5.08 83.34 REMARK 500 ASP A 275 -39.84 139.01 REMARK 500 ARG A 278 -35.41 -34.45 REMARK 500 ILE A 309 -83.24 -64.61 REMARK 500 LYS A 312 42.65 31.94 REMARK 500 ARG A 328 -128.99 -125.30 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 HPA A 599 DBREF 1VPW A 2 341 UNP P0ACP7 PURR_ECOLI 1 340 DBREF 1VPW B 699 715 PDB 1VPW 1VPW 699 715 SEQADV 1VPW MET A 54 UNP P0ACP7 LEU 53 ENGINEERED MUTATION SEQRES 1 B 17 DT DA DC DG DC DA DA DA DC DG DT DT DT SEQRES 2 B 17 DG DC DG DT SEQRES 1 A 340 ALA THR ILE LYS ASP VAL ALA LYS ARG ALA ASN VAL SER SEQRES 2 A 340 THR THR THR VAL SER HIS VAL ILE ASN LYS THR ARG PHE SEQRES 3 A 340 VAL ALA GLU GLU THR ARG ASN ALA VAL TRP ALA ALA ILE SEQRES 4 A 340 LYS GLU LEU HIS TYR SER PRO SER ALA VAL ALA ARG SER SEQRES 5 A 340 MET LYS VAL ASN HIS THR LYS SER ILE GLY LEU LEU ALA SEQRES 6 A 340 THR SER SER GLU ALA ALA TYR PHE ALA GLU ILE ILE GLU SEQRES 7 A 340 ALA VAL GLU LYS ASN CYS PHE GLN LYS GLY TYR THR LEU SEQRES 8 A 340 ILE LEU GLY ASN ALA TRP ASN ASN LEU GLU LYS GLN ARG SEQRES 9 A 340 ALA TYR LEU SER MET MET ALA GLN LYS ARG VAL ASP GLY SEQRES 10 A 340 LEU LEU VAL MET CYS SER GLU TYR PRO GLU PRO LEU LEU SEQRES 11 A 340 ALA MET LEU GLU GLU TYR ARG HIS ILE PRO MET VAL VAL SEQRES 12 A 340 MET ASP TRP GLY GLU ALA LYS ALA ASP PHE THR ASP ALA SEQRES 13 A 340 VAL ILE ASP ASN ALA PHE GLU GLY GLY TYR MET ALA GLY SEQRES 14 A 340 ARG TYR LEU ILE GLU ARG GLY HIS ARG GLU ILE GLY VAL SEQRES 15 A 340 ILE PRO GLY PRO LEU GLU ARG ASN THR GLY ALA GLY ARG SEQRES 16 A 340 LEU ALA GLY PHE MET LYS ALA MET GLU GLU ALA MET ILE SEQRES 17 A 340 LYS VAL PRO GLU SER TRP ILE VAL GLN GLY ASP PHE GLU SEQRES 18 A 340 PRO GLU SER GLY TYR ARG ALA MET GLN GLN ILE LEU SER SEQRES 19 A 340 GLN PRO HIS ARG PRO THR ALA VAL PHE CYS GLY GLY ASP SEQRES 20 A 340 ILE MET ALA MET GLY ALA LEU CYS ALA ALA ASP GLU MET SEQRES 21 A 340 GLY LEU ARG VAL PRO GLN ASP VAL SER LEU ILE GLY TYR SEQRES 22 A 340 ASP ASN VAL ARG ASN ALA ARG TYR PHE THR PRO ALA LEU SEQRES 23 A 340 THR THR ILE HIS GLN PRO LYS ASP SER LEU GLY GLU THR SEQRES 24 A 340 ALA PHE ASN MET LEU LEU ASP ARG ILE VAL ASN LYS ARG SEQRES 25 A 340 GLU GLU PRO GLN SER ILE GLU VAL HIS PRO ARG LEU ILE SEQRES 26 A 340 GLU ARG ARG SER VAL ALA ASP GLY PRO PHE ARG ASP TYR SEQRES 27 A 340 ARG ARG HET HPA A 599 10 HETNAM HPA HYPOXANTHINE FORMUL 3 HPA C5 H4 N4 O FORMUL 4 HOH *50(H2 O) HELIX 1 1 ILE A 4 ARG A 10 1 7 HELIX 2 2 THR A 15 ILE A 22 1 8 HELIX 3 3 GLU A 30 GLU A 42 1 13 HELIX 4 4 ALA A 49 VAL A 56 1 8 HELIX 5 5 ALA A 72 GLN A 87 1 16 HELIX 6 6 LEU A 101 GLN A 113 1 13 HELIX 7 7 GLU A 128 TYR A 137 1 10 HELIX 8 8 ALA A 162 GLU A 175 1 14 HELIX 9 9 ASN A 191 ALA A 207 1 17 HELIX 10 10 GLU A 213 TRP A 215 5 3 HELIX 11 11 PRO A 223 LEU A 234 1 12 HELIX 12 12 ASP A 248 MET A 261 1 14 HELIX 13 13 ALA A 280 TYR A 282 5 3 HELIX 14 14 ASP A 295 VAL A 310 1 16 SHEET 1 A 4 THR A 91 ASN A 96 0 SHEET 2 A 4 SER A 61 ALA A 66 1 N ILE A 62 O THR A 91 SHEET 3 A 4 GLY A 118 MET A 122 1 N GLY A 118 O GLY A 63 SHEET 4 A 4 MET A 142 VAL A 144 1 N VAL A 143 O LEU A 119 SHEET 1 B 2 ALA A 157 ILE A 159 0 SHEET 2 B 2 SER A 318 GLU A 320 1 N ILE A 319 O ALA A 157 SHEET 1 C 5 ILE A 181 ILE A 184 0 SHEET 2 C 5 ALA A 242 CYS A 245 1 N ALA A 242 O GLY A 182 SHEET 3 C 5 SER A 270 ASP A 275 1 N SER A 270 O VAL A 243 SHEET 4 C 5 THR A 288 HIS A 291 1 N THR A 288 O GLY A 273 SHEET 5 C 5 ARG A 324 ILE A 326 -1 N ILE A 326 O THR A 289 CISPEP 1 VAL A 265 PRO A 266 0 9.02 CISPEP 2 THR A 284 PRO A 285 0 -3.93 SITE 1 AC1 9 TYR A 73 PHE A 74 ARG A 190 THR A 192 SITE 2 AC1 9 ARG A 196 PHE A 221 ASP A 275 HOH A 618 SITE 3 AC1 9 HOH A 628 CRYST1 175.890 94.930 81.900 90.00 90.00 90.00 C 2 2 21 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 0.005685 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010534 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012210 0.00000