PDB Short entry for 1DBQ HEADER DNA-BINDING REGULATORY PROTEIN 13-FEB-96 1DBQ TITLE DNA-BINDING REGULATORY PROTEIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: PURINE REPRESSOR; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: COREPRESSOR-FREE COREPRESSOR-BINDING DOMAIN SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562 KEYWDS TRANSCRIPTION REGULATION, DNA-BINDING REGULATORY PROTEIN, PURINE KEYWDS 2 REPRESSOR EXPDTA X-RAY DIFFRACTION AUTHOR M.A.SCHUMACHER,K.Y.CHOI,F.LU,H.ZALKIN,R.G.BRENNAN REVDAT 3 07-FEB-24 1DBQ 1 REMARK LINK REVDAT 2 24-FEB-09 1DBQ 1 VERSN REVDAT 1 07-DEC-96 1DBQ 0 JRNL AUTH M.A.SCHUMACHER,K.Y.CHOI,F.LU,H.ZALKIN,R.G.BRENNAN JRNL TITL MECHANISM OF COREPRESSOR-MEDIATED SPECIFIC DNA BINDING BY JRNL TITL 2 THE PURINE REPRESSOR. JRNL REF CELL(CAMBRIDGE,MASS.) V. 83 147 1995 JRNL REFN ISSN 0092-8674 JRNL PMID 7553867 JRNL DOI 10.1016/0092-8674(95)90243-0 REMARK 2 REMARK 2 RESOLUTION. 2.20 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) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 25876 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) : 0.156 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 : 4344 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 244 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) : 0.018 ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : 2.790 ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : NULL REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1DBQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000172724. 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 : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL 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 : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL 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 : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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 (%): 44.36 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.21 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 62.63000 REMARK 290 SMTRY3 2 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: AS FOR FULL LENGTH PURINE REPRESSOR, THE COREPRESSOR REMARK 300 BINDING DOMAIN IS DIMERIC AND THE ENTRY CONTAINS TWO REMARK 300 MONOMERS IN THE ASU. THE CHAIN IDENTIFIERS ARE A AND B. 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 3260 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 24100 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -27.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 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 SER A 53 REMARK 465 LEU A 54 REMARK 465 LYS A 55 REMARK 465 VAL A 56 REMARK 465 ASN A 57 REMARK 465 HIS A 58 REMARK 465 THR A 59 REMARK 465 LEU A 188 REMARK 465 GLU A 189 REMARK 465 ARG A 190 REMARK 465 ASN A 191 REMARK 465 THR A 192 REMARK 465 GLY A 193 REMARK 465 SER B 53 REMARK 465 LEU B 54 REMARK 465 LYS B 55 REMARK 465 VAL B 56 REMARK 465 ASN B 57 REMARK 465 HIS B 58 REMARK 465 THR B 59 REMARK 465 LEU B 188 REMARK 465 GLU B 189 REMARK 465 ARG B 190 REMARK 465 ASN B 191 REMARK 465 THR B 192 REMARK 465 GLY B 193 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 GLU A 76 CG GLU A 76 CD 0.090 REMARK 500 SER A 330 CB SER A 330 OG 0.080 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 ARG A 105 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 GLY A 148 C - N - CA ANGL. DEV. = -15.2 DEGREES REMARK 500 MET A 204 CG - SD - CE ANGL. DEV. = 11.9 DEGREES REMARK 500 ASP A 338 N - CA - CB ANGL. DEV. = 11.3 DEGREES REMARK 500 TYR A 339 N - CA - CB ANGL. DEV. = 14.0 DEGREES REMARK 500 TYR A 339 CA - CB - CG ANGL. DEV. = 17.0 DEGREES REMARK 500 PRO B 187 C - N - CD ANGL. DEV. = -28.1 DEGREES REMARK 500 GLY B 195 N - CA - C ANGL. DEV. = -15.9 DEGREES REMARK 500 MET B 204 CG - SD - CE ANGL. DEV. = -13.8 DEGREES REMARK 500 PRO B 323 C - N - CD ANGL. DEV. = -14.6 DEGREES REMARK 500 ASP B 338 N - CA - CB ANGL. DEV. = 16.2 DEGREES REMARK 500 ASP B 338 CA - C - N ANGL. DEV. = -14.0 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 ASN A 99 16.04 108.55 REMARK 500 SER A 124 -33.57 62.37 REMARK 500 ASN A 161 68.92 -103.83 REMARK 500 PHE A 221 -28.34 84.69 REMARK 500 ASP A 275 -55.96 124.85 REMARK 500 ASN A 276 57.14 74.24 REMARK 500 LYS A 312 84.03 -44.82 REMARK 500 GLU A 314 44.36 -97.90 REMARK 500 ARG A 328 -113.11 -113.18 REMARK 500 PHE A 336 21.23 -76.81 REMARK 500 ASP A 338 65.31 -163.91 REMARK 500 ARG A 340 -164.70 159.28 REMARK 500 SER B 68 103.55 164.42 REMARK 500 ALA B 72 -31.24 -32.96 REMARK 500 TYR B 73 -74.57 -62.64 REMARK 500 PHE B 74 -70.95 -54.63 REMARK 500 ALA B 75 -69.32 10.03 REMARK 500 GLU B 82 -71.45 -58.33 REMARK 500 ALA B 97 -125.18 -68.67 REMARK 500 TRP B 98 31.08 143.54 REMARK 500 ASN B 99 75.10 70.37 REMARK 500 ARG B 115 64.54 37.55 REMARK 500 ASP B 117 37.06 -88.95 REMARK 500 LEU B 120 116.37 -169.43 REMARK 500 TYR B 126 56.33 -155.19 REMARK 500 GLU B 149 97.38 -19.75 REMARK 500 ALA B 152 83.15 -59.47 REMARK 500 ASP B 153 -102.70 -127.83 REMARK 500 PHE B 154 14.09 -165.00 REMARK 500 ASN B 161 64.64 -111.93 REMARK 500 MET B 208 31.80 72.47 REMARK 500 PHE B 221 -11.56 101.64 REMARK 500 ASP B 275 -57.14 133.31 REMARK 500 ASN B 276 63.45 71.66 REMARK 500 PRO B 293 92.22 -53.63 REMARK 500 SER B 296 -34.61 -148.73 REMARK 500 LEU B 306 -71.22 -53.42 REMARK 500 VAL B 310 -81.36 -78.95 REMARK 500 ASN B 311 -5.66 -52.70 REMARK 500 PRO B 316 174.96 -55.03 REMARK 500 ARG B 328 -124.76 -139.08 REMARK 500 PHE B 336 53.23 -93.37 REMARK 500 TYR B 339 103.45 136.35 REMARK 500 ARG B 340 170.77 78.99 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 MG A 2 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 3 DBREF 1DBQ A 53 341 UNP P0ACP7 PURR_ECOLI 52 340 DBREF 1DBQ B 53 341 UNP P0ACP7 PURR_ECOLI 52 340 SEQRES 1 A 289 SER LEU LYS VAL ASN HIS THR LYS SER ILE GLY LEU LEU SEQRES 2 A 289 ALA THR SER SER GLU ALA ALA TYR PHE ALA GLU ILE ILE SEQRES 3 A 289 GLU ALA VAL GLU LYS ASN CYS PHE GLN LYS GLY TYR THR SEQRES 4 A 289 LEU ILE LEU GLY ASN ALA TRP ASN ASN LEU GLU LYS GLN SEQRES 5 A 289 ARG ALA TYR LEU SER MET MET ALA GLN LYS ARG VAL ASP SEQRES 6 A 289 GLY LEU LEU VAL MET CYS SER GLU TYR PRO GLU PRO LEU SEQRES 7 A 289 LEU ALA MET LEU GLU GLU TYR ARG HIS ILE PRO MET VAL SEQRES 8 A 289 VAL MET ASP TRP GLY GLU ALA LYS ALA ASP PHE THR ASP SEQRES 9 A 289 ALA VAL ILE ASP ASN ALA PHE GLU GLY GLY TYR MET ALA SEQRES 10 A 289 GLY ARG TYR LEU ILE GLU ARG GLY HIS ARG GLU ILE GLY SEQRES 11 A 289 VAL ILE PRO GLY PRO LEU GLU ARG ASN THR GLY ALA GLY SEQRES 12 A 289 ARG LEU ALA GLY PHE MET LYS ALA MET GLU GLU ALA MET SEQRES 13 A 289 ILE LYS VAL PRO GLU SER TRP ILE VAL GLN GLY ASP PHE SEQRES 14 A 289 GLU PRO GLU SER GLY TYR ARG ALA MET GLN GLN ILE LEU SEQRES 15 A 289 SER GLN PRO HIS ARG PRO THR ALA VAL PHE CYS GLY GLY SEQRES 16 A 289 ASP ILE MET ALA MET GLY ALA LEU CYS ALA ALA ASP GLU SEQRES 17 A 289 MET GLY LEU ARG VAL PRO GLN ASP VAL SER LEU ILE GLY SEQRES 18 A 289 TYR ASP ASN VAL ARG ASN ALA ARG TYR PHE THR PRO ALA SEQRES 19 A 289 LEU THR THR ILE HIS GLN PRO LYS ASP SER LEU GLY GLU SEQRES 20 A 289 THR ALA PHE ASN MET LEU LEU ASP ARG ILE VAL ASN LYS SEQRES 21 A 289 ARG GLU GLU PRO GLN SER ILE GLU VAL HIS PRO ARG LEU SEQRES 22 A 289 ILE GLU ARG ARG SER VAL ALA ASP GLY PRO PHE ARG ASP SEQRES 23 A 289 TYR ARG ARG SEQRES 1 B 289 SER LEU LYS VAL ASN HIS THR LYS SER ILE GLY LEU LEU SEQRES 2 B 289 ALA THR SER SER GLU ALA ALA TYR PHE ALA GLU ILE ILE SEQRES 3 B 289 GLU ALA VAL GLU LYS ASN CYS PHE GLN LYS GLY TYR THR SEQRES 4 B 289 LEU ILE LEU GLY ASN ALA TRP ASN ASN LEU GLU LYS GLN SEQRES 5 B 289 ARG ALA TYR LEU SER MET MET ALA GLN LYS ARG VAL ASP SEQRES 6 B 289 GLY LEU LEU VAL MET CYS SER GLU TYR PRO GLU PRO LEU SEQRES 7 B 289 LEU ALA MET LEU GLU GLU TYR ARG HIS ILE PRO MET VAL SEQRES 8 B 289 VAL MET ASP TRP GLY GLU ALA LYS ALA ASP PHE THR ASP SEQRES 9 B 289 ALA VAL ILE ASP ASN ALA PHE GLU GLY GLY TYR MET ALA SEQRES 10 B 289 GLY ARG TYR LEU ILE GLU ARG GLY HIS ARG GLU ILE GLY SEQRES 11 B 289 VAL ILE PRO GLY PRO LEU GLU ARG ASN THR GLY ALA GLY SEQRES 12 B 289 ARG LEU ALA GLY PHE MET LYS ALA MET GLU GLU ALA MET SEQRES 13 B 289 ILE LYS VAL PRO GLU SER TRP ILE VAL GLN GLY ASP PHE SEQRES 14 B 289 GLU PRO GLU SER GLY TYR ARG ALA MET GLN GLN ILE LEU SEQRES 15 B 289 SER GLN PRO HIS ARG PRO THR ALA VAL PHE CYS GLY GLY SEQRES 16 B 289 ASP ILE MET ALA MET GLY ALA LEU CYS ALA ALA ASP GLU SEQRES 17 B 289 MET GLY LEU ARG VAL PRO GLN ASP VAL SER LEU ILE GLY SEQRES 18 B 289 TYR ASP ASN VAL ARG ASN ALA ARG TYR PHE THR PRO ALA SEQRES 19 B 289 LEU THR THR ILE HIS GLN PRO LYS ASP SER LEU GLY GLU SEQRES 20 B 289 THR ALA PHE ASN MET LEU LEU ASP ARG ILE VAL ASN LYS SEQRES 21 B 289 ARG GLU GLU PRO GLN SER ILE GLU VAL HIS PRO ARG LEU SEQRES 22 B 289 ILE GLU ARG ARG SER VAL ALA ASP GLY PRO PHE ARG ASP SEQRES 23 B 289 TYR ARG ARG HET MG A 1 1 HET MG A 2 1 HET MG B 3 1 HETNAM MG MAGNESIUM ION FORMUL 3 MG 3(MG 2+) FORMUL 6 HOH *244(H2 O) HELIX 1 1 ALA A 72 LYS A 88 1 17 HELIX 2 2 LEU A 101 GLN A 113 1 13 HELIX 3 3 GLU A 128 TYR A 137 1 10 HELIX 4 4 ALA A 162 GLU A 175 1 14 HELIX 5 5 GLY A 195 ALA A 207 1 13 HELIX 6 6 GLU A 213 TRP A 215 5 3 HELIX 7 7 PRO A 223 LEU A 234 1 12 HELIX 8 8 ASP A 248 MET A 261 1 14 HELIX 9 9 ALA A 280 TYR A 282 5 3 HELIX 10 10 ASP A 295 VAL A 310 1 16 HELIX 11 11 GLU B 76 LYS B 88 1 13 HELIX 12 12 LYS B 103 GLN B 113 1 11 HELIX 13 13 GLU B 128 GLU B 136 1 9 HELIX 14 14 ALA B 162 GLU B 175 1 14 HELIX 15 15 GLY B 195 ALA B 207 1 13 HELIX 16 16 GLU B 213 TRP B 215 5 3 HELIX 17 17 PRO B 223 LEU B 234 1 12 HELIX 18 18 ASP B 248 MET B 261 1 14 HELIX 19 19 ALA B 280 TYR B 282 5 3 HELIX 20 20 LEU B 297 ILE B 309 1 13 SHEET 1 A 6 MET A 142 MET A 145 0 SHEET 2 A 6 GLY A 118 MET A 122 1 N LEU A 119 O VAL A 143 SHEET 3 A 6 SER A 61 ALA A 66 1 N GLY A 63 O GLY A 118 SHEET 4 A 6 THR A 91 ASN A 96 1 N THR A 91 O ILE A 62 SHEET 5 A 6 THR B 91 ASN B 96 -1 N LEU B 94 O LEU A 92 SHEET 6 A 6 SER B 61 ALA B 66 1 N ILE B 62 O THR B 91 SHEET 1 B 2 ALA A 157 ASP A 160 0 SHEET 2 B 2 SER A 318 VAL A 321 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 SHEET 1 D 2 MET B 145 TRP B 147 0 SHEET 2 D 2 ASP B 156 VAL B 158 1 N ASP B 156 O ASP B 146 SHEET 1 E 5 ILE B 181 ILE B 184 0 SHEET 2 E 5 ALA B 242 CYS B 245 1 N ALA B 242 O GLY B 182 SHEET 3 E 5 SER B 270 ASP B 275 1 N SER B 270 O VAL B 243 SHEET 4 E 5 THR B 288 HIS B 291 1 N THR B 288 O GLY B 273 SHEET 5 E 5 ARG B 324 ILE B 326 -1 N ILE B 326 O THR B 289 LINK MG MG A 2 O HOH A 409 1555 1656 2.41 LINK MG MG B 3 O HOH B 393 1555 1555 3.06 CISPEP 1 VAL A 265 PRO A 266 0 0.13 CISPEP 2 THR A 284 PRO A 285 0 -1.39 CISPEP 3 VAL B 265 PRO B 266 0 1.59 CISPEP 4 THR B 284 PRO B 285 0 3.14 SITE 1 AC1 1 HOH A 409 SITE 1 AC2 1 HOH B 393 CRYST1 38.040 125.260 61.290 90.00 100.17 90.00 P 1 21 1 4 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 0.026288 0.000000 0.004716 0.00000 SCALE2 0.000000 0.007983 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016576 0.00000