HEADER TRANSCRIPTION/TRANSFERASE 30-JUL-09 3IHQ TITLE CRYSTAL STRUCTURE OF REDUCED C10S SPX IN COMPLEX WITH THE ALPHA C- TITLE 2 TERMINAL DOMAIN OF RNA POLYMERAS COMPND MOL_ID: 1; COMPND 2 MOLECULE: REGULATORY PROTEIN SPX; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: DNA-DIRECTED RNA POLYMERASE SUBUNIT ALPHA; COMPND 8 CHAIN: B; COMPND 9 FRAGMENT: UNP RESIDUES 245-314; COMPND 10 SYNONYM: RNAP SUBUNIT ALPHA, TRANSCRIPTASE SUBUNIT ALPHA, RNA COMPND 11 POLYMERASE SUBUNIT ALPHA; COMPND 12 EC: 2.7.7.6; COMPND 13 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS SUBTILIS; SOURCE 3 ORGANISM_TAXID: 1423; SOURCE 4 GENE: BSU11500, SPXA; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PPROEX; SOURCE 10 MOL_ID: 2; SOURCE 11 ORGANISM_SCIENTIFIC: BACILLUS SUBTILIS; SOURCE 12 ORGANISM_TAXID: 1423; SOURCE 13 GENE: BSU01430, RPOA; SOURCE 14 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 15 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 16 EXPRESSION_SYSTEM_STRAIN: ROSETTA 2 (BL21); SOURCE 17 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 18 EXPRESSION_SYSTEM_PLASMID: PET28A KEYWDS TRANSCRIPTION REGULATION, OXIDATIVE STRESS, SPX, RNA POLYMERASE, KEYWDS 2 CYTOPLASM, DISULFIDE BOND, REDOX-ACTIVE CENTER, STRESS RESPONSE, KEYWDS 3 TRANSCRIPTION, DNA-DIRECTED RNA POLYMERASE, NUCLEOTIDYLTRANSFERASE, KEYWDS 4 TRANSFERASE, TRANSCRIPTION-TRANSFERASE COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR K.J.NEWBERRY,R.G.BRENNAN REVDAT 3 06-SEP-23 3IHQ 1 REMARK REVDAT 2 13-OCT-21 3IHQ 1 REMARK SEQADV REVDAT 1 02-FEB-10 3IHQ 0 JRNL AUTH M.M.NAKANO,A.LIN,C.S.ZUBER,K.J.NEWBERRY,R.G.BRENNAN,P.ZUBER JRNL TITL PROMOTER RECOGNITION BY A COMPLEX OF SPX AND THE C-TERMINAL JRNL TITL 2 DOMAIN OF THE RNA POLYMERASE ALPHA SUBUNIT. JRNL REF PLOS ONE V. 5 E8664 2010 JRNL REFN ESSN 1932-6203 JRNL PMID 20084284 JRNL DOI 10.1371/JOURNAL.PONE.0008664 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH K.J.NEWBERRY,S.NAKANO,P.ZUBER,R.G.BRENNAN REMARK 1 TITL CRYSTAL STRUCTURE OF THE BACILLUS SUBTILIS ANTI-ALPHA, REMARK 1 TITL 2 GLOBAL TRANSCRIPTIONAL REGULATOR, SPX, IN COMPLEX WITH THE REMARK 1 TITL 3 {ALPHA} C-TERMINAL DOMAIN OF RNA POLYMERASE REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 102 15839 2005 REMARK 1 REFN ISSN 0027-8424 REMARK 1 PMID 16249335 REMARK 1 DOI 10.1073/PNAS.0506592102 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 48.33 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 95.1 REMARK 3 NUMBER OF REFLECTIONS : 12912 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 SET) : 0.236 REMARK 3 FREE R VALUE : 0.278 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 662 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.97 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.3109 REMARK 3 BIN FREE R VALUE : 0.4050 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 70 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1463 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 39 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 27.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 38.40 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.27 REMARK 3 ESD FROM SIGMAA (A) : 0.24 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.35 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.36 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : NULL REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; 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 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3IHQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 31-JUL-09. REMARK 100 THE DEPOSITION ID IS D_1000054425. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-JUN-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.3 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.3.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : DOUBLE CRYSTAL SI(111) REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12912 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 48.330 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.1 REMARK 200 DATA REDUNDANCY : 3.500 REMARK 200 R MERGE (I) : 0.05900 REMARK 200 R SYM (I) : 0.05900 REMARK 200 FOR THE DATA SET : 7.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.1 REMARK 200 DATA REDUNDANCY IN SHELL : 3.40 REMARK 200 R MERGE FOR SHELL (I) : 0.23000 REMARK 200 R SYM FOR SHELL (I) : 0.23000 REMARK 200 FOR SHELL : 2.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 1Z3E REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 33.47 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.85 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 25-30% PEG 4000, 0.1 M SODIUM CITRATE, REMARK 280 0.1 M MAGNESIUM CHLORIDE, PH 5.3, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 273K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,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 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 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: 1280 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10400 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -5.0 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 HIS A 0 REMARK 465 ARG A 116 REMARK 465 LYS A 117 REMARK 465 VAL A 118 REMARK 465 ARG A 119 REMARK 465 SER A 120 REMARK 465 PHE A 121 REMARK 465 GLN A 122 REMARK 465 LEU A 123 REMARK 465 ARG A 124 REMARK 465 GLU A 125 REMARK 465 ALA A 126 REMARK 465 GLN A 127 REMARK 465 ARG A 128 REMARK 465 LEU A 129 REMARK 465 ALA A 130 REMARK 465 ASN A 131 REMARK 465 GLY B 241 REMARK 465 SER B 242 REMARK 465 HIS B 243 REMARK 465 MET B 244 REMARK 465 LYS B 312 REMARK 465 ASP B 313 REMARK 465 ASP B 314 REMARK 465 GLY B 315 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 GLU A 50 CG CD OE1 OE2 REMARK 470 GLU A 109 CG CD OE1 OE2 REMARK 470 GLU B 246 CG CD OE1 OE2 REMARK 470 LYS B 280 CG CD CE NZ REMARK 470 MET B 286 CG SD CE REMARK 470 GLU B 297 CG CD OE1 OE2 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 GLN A 65 N - CA - C ANGL. DEV. = -16.6 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 SER A 7 93.84 -162.41 REMARK 500 PRO A 8 -179.05 -32.54 REMARK 500 SER A 9 13.45 54.85 REMARK 500 GLN A 65 22.85 -79.90 REMARK 500 LYS A 66 88.79 -46.10 REMARK 500 LEU A 67 149.20 -17.57 REMARK 500 ASN A 68 76.81 -14.05 REMARK 500 ASN B 290 -4.25 70.88 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 IMD A 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1Z3E RELATED DB: PDB REMARK 900 OXIDIZED SPX STRUCTURE DBREF 3IHQ A 1 131 UNP O31602 SPX_BACSU 1 131 DBREF 3IHQ B 245 314 UNP P20429 RPOA_BACSU 245 314 SEQADV 3IHQ HIS A 0 UNP O31602 EXPRESSION TAG SEQADV 3IHQ SER A 10 UNP O31602 CYS 10 ENGINEERED MUTATION SEQADV 3IHQ GLY B 241 UNP P20429 EXPRESSION TAG SEQADV 3IHQ SER B 242 UNP P20429 EXPRESSION TAG SEQADV 3IHQ HIS B 243 UNP P20429 EXPRESSION TAG SEQADV 3IHQ MET B 244 UNP P20429 EXPRESSION TAG SEQADV 3IHQ GLY B 315 UNP P20429 EXPRESSION TAG SEQRES 1 A 132 HIS MET VAL THR LEU TYR THR SER PRO SER SER THR SER SEQRES 2 A 132 CYS ARG LYS ALA ARG ALA TRP LEU GLU GLU HIS GLU ILE SEQRES 3 A 132 PRO PHE VAL GLU ARG ASN ILE PHE SER GLU PRO LEU SER SEQRES 4 A 132 ILE ASP GLU ILE LYS GLN ILE LEU ARG MET THR GLU ASP SEQRES 5 A 132 GLY THR ASP GLU ILE ILE SER THR ARG SER LYS VAL PHE SEQRES 6 A 132 GLN LYS LEU ASN VAL ASN VAL GLU SER MET PRO LEU GLN SEQRES 7 A 132 ASP LEU TYR ARG LEU ILE ASN GLU HIS PRO GLY LEU LEU SEQRES 8 A 132 ARG ARG PRO ILE ILE ILE ASP GLU LYS ARG LEU GLN VAL SEQRES 9 A 132 GLY TYR ASN GLU ASP GLU ILE ARG ARG PHE LEU PRO ARG SEQRES 10 A 132 LYS VAL ARG SER PHE GLN LEU ARG GLU ALA GLN ARG LEU SEQRES 11 A 132 ALA ASN SEQRES 1 B 75 GLY SER HIS MET LYS GLU LYS VAL LEU GLU MET THR ILE SEQRES 2 B 75 GLU GLU LEU ASP LEU SER VAL ARG SER TYR ASN CYS LEU SEQRES 3 B 75 LYS ARG ALA GLY ILE ASN THR VAL GLN GLU LEU ALA ASN SEQRES 4 B 75 LYS THR GLU GLU ASP MET MET LYS VAL ARG ASN LEU GLY SEQRES 5 B 75 ARG LYS SER LEU GLU GLU VAL LYS ALA LYS LEU GLU GLU SEQRES 6 B 75 LEU GLY LEU GLY LEU ARG LYS ASP ASP GLY HET IMD A 300 5 HETNAM IMD IMIDAZOLE FORMUL 3 IMD C3 H5 N2 1+ FORMUL 4 HOH *39(H2 O) HELIX 1 1 SER A 10 HIS A 23 1 14 HELIX 2 2 SER A 38 MET A 48 1 11 HELIX 3 3 GLY A 52 ILE A 56 5 5 HELIX 4 4 PRO A 75 HIS A 86 1 12 HELIX 5 5 PRO A 87 LEU A 90 5 4 HELIX 6 6 ASP A 108 LEU A 114 5 7 HELIX 7 7 LYS B 245 GLU B 250 1 6 HELIX 8 8 THR B 252 LEU B 256 5 5 HELIX 9 9 SER B 259 ALA B 269 1 11 HELIX 10 10 THR B 273 ASN B 279 1 7 HELIX 11 11 THR B 281 LYS B 287 1 7 HELIX 12 12 GLY B 292 GLU B 305 1 14 SHEET 1 A 4 PHE A 27 ASN A 31 0 SHEET 2 A 4 VAL A 2 THR A 6 1 N LEU A 4 O VAL A 28 SHEET 3 A 4 ILE A 94 ILE A 96 -1 O ILE A 94 N TYR A 5 SHEET 4 A 4 LEU A 101 VAL A 103 -1 O GLN A 102 N ILE A 95 CISPEP 1 ARG A 92 PRO A 93 0 -0.16 SITE 1 AC1 3 THR A 59 ARG A 60 ARG A 91 CRYST1 29.390 32.220 50.580 106.07 91.62 103.77 P 1 1 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 0.034025 0.008338 0.003552 0.00000 SCALE2 0.000000 0.031955 0.009758 0.00000 SCALE3 0.000000 0.000000 0.020680 0.00000