HEADER TRANSCRIPTION 28-JUN-01 1JHZ TITLE PURINE REPRESSOR MUTANT COREPRESSOR BINDING DOMAIN STRUCTURE COMPND MOL_ID: 1; COMPND 2 MOLECULE: PURINE NUCLEOTIDE SYNTHESIS REPRESSOR; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: COREPRESSOR-FREE COREPRESSOR BINDING DOMAIN (RESIDUES 53- COMPND 5 341); COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: PURR; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21 LAMBDA DE3; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET24A KEYWDS COREPRESSOR BINDING DOMAIN, PURINE REPRESSOR, ALLOSTERIC REGULATION, KEYWDS 2 DNA-BINDING PROTEIN, PURINE BIOSYNTHESIS, TRANSCRIPTION EXPDTA X-RAY DIFFRACTION AUTHOR J.L.HUFFMAN,F.LU,H.ZALKIN,R.G.BRENNAN REVDAT 4 16-AUG-23 1JHZ 1 REMARK REVDAT 3 27-OCT-21 1JHZ 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 1JHZ 1 VERSN REVDAT 1 08-FEB-02 1JHZ 0 JRNL AUTH J.L.HUFFMAN,F.LU,H.ZALKIN,R.G.BRENNAN JRNL TITL ROLE OF RESIDUE 147 IN THE GENE REGULATORY FUNCTION OF THE JRNL TITL 2 ESCHERICHIA COLI PURINE REPRESSOR. JRNL REF BIOCHEMISTRY V. 41 511 2002 JRNL REFN ISSN 0006-2960 JRNL PMID 11781089 JRNL DOI 10.1021/BI0156660 REMARK 2 REMARK 2 RESOLUTION. 2.40 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) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 63009 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) : 0.178 REMARK 3 R VALUE (WORKING SET) : NULL 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) : 63009 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4336 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 150 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) : 0.009 ; 1.500 ; 4424 REMARK 3 BOND ANGLES (DEGREES) : 1.018 ; 2.800 ; 5938 REMARK 3 TORSION ANGLES (DEGREES) : 20.358; 0.000 ; 2666 REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : 0.002 ; 11.000; 114 REMARK 3 GENERAL PLANES (A) : 0.003 ; 11.000; 646 REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : 2.662 ; 5.500 ; 4424 REMARK 3 NON-BONDED CONTACTS (A) : 0.012 ; 36.000; 322 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 : ENGH & HUBER REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : ISOTROPIC REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1JHZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-JUL-01. REMARK 100 THE DEPOSITION ID IS D_1000013793. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JUL-97 REMARK 200 TEMPERATURE (KELVIN) : 298 REMARK 200 PH : 7.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL7-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.08 REMARK 200 MONOCHROMATOR : HORIZONTAL FOCUS SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20934 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.2 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : 0.07900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 6.6400 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.46 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.5 REMARK 200 DATA REDUNDANCY IN SHELL : 2.90 REMARK 200 R MERGE FOR SHELL (I) : 0.36900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: TNT REMARK 200 STARTING MODEL: 1DBQ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.35 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.25 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 600, MAGNESIUM CHLORIDE, TRIS HCL, REMARK 280 PH 7.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K 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 63.06500 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: THE BIOLOGICAL ASSEMBLY OF THE PURR COREPRESSOR BINDING REMARK 300 DOMAIN IS A HOMODIMER, WHICH IS CONTAINED WITHIN THE ASYMMETRIC REMARK 300 UNIT. 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: 3390 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 24380 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -30.0 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 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 B 141 C - N - CD ANGL. DEV. = -14.5 DEGREES REMARK 500 PRO B 187 C - N - CD ANGL. DEV. = -21.9 DEGREES REMARK 500 PRO B 323 C - N - CD ANGL. DEV. = -13.1 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 TRP A 98 35.02 79.72 REMARK 500 ARG A 138 1.22 -65.37 REMARK 500 MET A 208 18.32 57.79 REMARK 500 PHE A 221 -22.78 93.46 REMARK 500 ASP A 275 -53.49 128.62 REMARK 500 ASN A 276 58.83 71.03 REMARK 500 VAL A 310 34.21 -98.00 REMARK 500 ARG A 313 62.19 35.84 REMARK 500 ARG A 328 -120.16 -126.95 REMARK 500 ASP A 338 47.86 168.50 REMARK 500 ARG A 340 -122.31 -170.93 REMARK 500 ALA B 66 -166.85 -105.81 REMARK 500 SER B 68 97.28 -164.38 REMARK 500 ALA B 72 -74.18 -68.58 REMARK 500 ALA B 75 -74.31 -32.90 REMARK 500 TRP B 98 46.97 -153.34 REMARK 500 LEU B 101 -36.08 -38.68 REMARK 500 LYS B 114 11.60 -64.61 REMARK 500 ASP B 117 55.41 -100.52 REMARK 500 TYR B 126 61.09 -154.50 REMARK 500 TYR B 137 37.61 -75.42 REMARK 500 GLU B 149 113.26 -32.03 REMARK 500 ALA B 152 77.12 -68.64 REMARK 500 PHE B 154 4.58 166.67 REMARK 500 PHE B 221 -11.54 84.77 REMARK 500 SER B 235 48.43 -99.03 REMARK 500 ASP B 275 -49.99 115.09 REMARK 500 ASN B 276 61.82 68.96 REMARK 500 PRO B 293 94.60 -53.18 REMARK 500 SER B 296 -35.13 -168.67 REMARK 500 ARG B 328 -127.41 -136.32 REMARK 500 PHE B 336 35.31 -95.68 REMARK 500 TYR B 339 106.78 168.35 REMARK 500 ARG B 340 144.15 86.67 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 402 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 320 OE2 REMARK 620 2 GLU A 320 OE1 45.1 REMARK 620 3 HOH A 464 O 109.1 79.7 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 402 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1PNR RELATED DB: PDB REMARK 900 PURINE REPRESSOR-HYPOXANTHINE-PURF-OPERATOR COMPLEX REMARK 900 RELATED ID: 1QPZ RELATED DB: PDB REMARK 900 PURINE REPRESSOR-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX REMARK 900 RELATED ID: 1JFS RELATED DB: PDB REMARK 900 PURINE REPRESSOR MUTANT-HYPOXANTHINE-PURF OPERATOR COMPLEX (W147F) REMARK 900 RELATED ID: 1JFT RELATED DB: PDB REMARK 900 PURINE REPRESSOR MUTANT-HYPOXANTHINE-PURF OPERATOR COMPLEX (W147A) REMARK 900 RELATED ID: 1JH9 RELATED DB: PDB REMARK 900 PURINE REPRESSOR MUTANT-HYPOXANTHINE-PURF OPERATOR COMPLEX (W147R) DBREF 1JHZ A 53 341 UNP P0ACP7 PURR_ECOLI 52 340 DBREF 1JHZ B 53 341 UNP P0ACP7 PURR_ECOLI 52 340 SEQADV 1JHZ PHE A 147 UNP P0ACP7 TRP 146 ENGINEERED MUTATION SEQADV 1JHZ PHE B 147 UNP P0ACP7 TRP 146 ENGINEERED MUTATION 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 PHE 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 PHE 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 402 1 HET MG B 401 1 HET MG B 403 1 HETNAM MG MAGNESIUM ION FORMUL 3 MG 3(MG 2+) FORMUL 6 HOH *150(H2 O) HELIX 1 1 ALA A 71 LYS A 88 1 18 HELIX 2 2 ASN A 100 LYS A 114 1 15 HELIX 3 3 PRO A 127 TYR A 137 1 11 HELIX 4 4 ASN A 161 ARG A 176 1 16 HELIX 5 5 ALA A 194 ALA A 207 1 14 HELIX 6 6 PRO A 212 TRP A 215 5 4 HELIX 7 7 GLU A 222 SER A 235 1 14 HELIX 8 8 GLY A 247 MET A 261 1 15 HELIX 9 9 VAL A 277 PHE A 283 5 7 HELIX 10 10 PRO A 293 VAL A 310 1 18 HELIX 11 11 PHE B 74 LYS B 88 1 15 HELIX 12 12 ASN B 100 LYS B 114 1 15 HELIX 13 13 PRO B 127 TYR B 137 1 11 HELIX 14 14 ASN B 161 ARG B 176 1 16 HELIX 15 15 ALA B 194 ALA B 207 1 14 HELIX 16 16 PRO B 212 TRP B 215 5 4 HELIX 17 17 GLU B 222 SER B 235 1 14 HELIX 18 18 GLY B 247 MET B 261 1 15 HELIX 19 19 VAL B 277 PHE B 283 5 7 HELIX 20 20 SER B 296 VAL B 310 1 15 SHEET 1 A 8 SER A 318 GLU A 320 0 SHEET 2 A 8 ASP A 156 ILE A 159 1 O ALA A 157 N ILE A 319 SHEET 3 A 8 MET A 142 ASP A 146 1 O VAL A 144 N ASP A 156 SHEET 4 A 8 GLY A 118 MET A 122 1 O LEU A 119 N VAL A 143 SHEET 5 A 8 SER A 61 ALA A 66 1 O SER A 61 N GLY A 118 SHEET 6 A 8 THR A 91 ASN A 96 1 O THR A 91 N ILE A 62 SHEET 7 A 8 THR B 91 ASN B 96 -1 O LEU B 92 N LEU A 94 SHEET 8 A 8 SER B 61 ALA B 66 1 N ILE B 62 O THR B 91 SHEET 1 B 3 ILE A 181 ILE A 184 0 SHEET 2 B 3 ALA A 242 CYS A 245 1 O ALA A 242 N GLY A 182 SHEET 3 B 3 SER A 270 ILE A 272 1 O SER A 270 N VAL A 243 SHEET 1 C 2 THR A 289 HIS A 291 0 SHEET 2 C 2 ARG A 324 ILE A 326 -1 O ARG A 324 N HIS A 291 SHEET 1 D 4 VAL B 121 MET B 122 0 SHEET 2 D 4 VAL B 144 PHE B 147 1 N MET B 145 O VAL B 121 SHEET 3 D 4 ALA B 157 ILE B 159 1 N VAL B 158 O ASP B 146 SHEET 4 D 4 ILE B 319 GLU B 320 1 O ILE B 319 N ILE B 159 SHEET 1 E 5 ILE B 181 ILE B 184 0 SHEET 2 E 5 ALA B 242 CYS B 245 1 O ALA B 242 N GLY B 182 SHEET 3 E 5 SER B 270 ASP B 275 1 O SER B 270 N VAL B 243 SHEET 4 E 5 THR B 288 HIS B 291 1 O THR B 288 N GLY B 273 SHEET 5 E 5 ARG B 324 ILE B 326 -1 O ARG B 324 N HIS B 291 LINK OE2 GLU A 320 MG MG A 402 1555 1555 3.09 LINK OE1 GLU A 320 MG MG A 402 1555 1555 2.36 LINK MG MG A 402 O HOH A 464 1555 1555 1.75 LINK O HOH A 490 MG MG B 401 1555 1555 2.87 CISPEP 1 VAL A 265 PRO A 266 0 1.24 CISPEP 2 THR A 284 PRO A 285 0 0.29 CISPEP 3 VAL B 265 PRO B 266 0 1.38 CISPEP 4 THR B 284 PRO B 285 0 0.37 SITE 1 AC1 2 HOH A 490 GLU B 70 SITE 1 AC2 2 GLU A 320 HOH A 464 CRYST1 38.020 126.130 61.840 90.00 99.71 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 0.026302 0.000000 0.004501 0.00000 SCALE2 0.000000 0.007928 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016406 0.00000