HEADER TRANSFERASE/RNA 16-DEC-12 4IG8 TITLE STRUCTURAL BASIS FOR CYTOSOLIC DOUBLE-STRANDED RNA SURVEILLANCE BY TITLE 2 HUMAN OAS1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: 2'-5'-OLIGOADENYLATE SYNTHASE 1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 1-347; COMPND 5 SYNONYM: (2-5')OLIGO(A) SYNTHASE 1, 2-5A SYNTHASE 1, E18/E16, P46/P42 COMPND 6 OAS; COMPND 7 EC: 2.7.7.-; COMPND 8 ENGINEERED: YES; COMPND 9 MOL_ID: 2; COMPND 10 MOLECULE: RNA (5'- COMPND 11 R(*GP*GP*CP*UP*UP*UP*UP*GP*AP*CP*CP*UP*UP*UP*AP*UP*GP*C)-3'); COMPND 12 CHAIN: B; COMPND 13 ENGINEERED: YES; COMPND 14 MOL_ID: 3; COMPND 15 MOLECULE: RNA (5'- COMPND 16 R(*GP*CP*AP*UP*AP*AP*AP*GP*GP*UP*CP*AP*AP*AP*AP*GP*CP*C)-3'); COMPND 17 CHAIN: C; COMPND 18 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: OAS1, OIAS; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 MOL_ID: 2; SOURCE 9 SYNTHETIC: YES; SOURCE 10 MOL_ID: 3; SOURCE 11 SYNTHETIC: YES KEYWDS NUCLEOTIDYL TRANSFERASE, INNATE IMMUNE SYSTEM DOUBLE-STRANDED DSRNA KEYWDS 2 SENSOR RNA POLYMERASE, NUCLEOTIDYL TRANSFERASE 2-5A SYNTHETASE, KEYWDS 3 RNASE L ACTIVATOR, DOUBLE-STRANDED RNA, CYTOSOL, TRANSFERASE-RNA KEYWDS 4 COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR J.DONOVAN,A.KORENNYKH REVDAT 4 28-FEB-24 4IG8 1 REMARK SEQADV LINK REVDAT 3 13-FEB-13 4IG8 1 JRNL REVDAT 2 30-JAN-13 4IG8 1 JRNL REVDAT 1 16-JAN-13 4IG8 0 JRNL AUTH J.DONOVAN,M.DUFNER,A.KORENNYKH JRNL TITL STRUCTURAL BASIS FOR CYTOSOLIC DOUBLE-STRANDED RNA JRNL TITL 2 SURVEILLANCE BY HUMAN OLIGOADENYLATE SYNTHETASE 1. JRNL REF PROC.NATL.ACAD.SCI.USA V. 110 1652 2013 JRNL REFN ISSN 0027-8424 JRNL PMID 23319625 JRNL DOI 10.1073/PNAS.1218528110 REMARK 2 REMARK 2 RESOLUTION. 2.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.8_1069) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 67.70 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.990 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 3 NUMBER OF REFLECTIONS : 18574 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.231 REMARK 3 R VALUE (WORKING SET) : 0.229 REMARK 3 FREE R VALUE : 0.283 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.010 REMARK 3 FREE R VALUE TEST SET COUNT : 930 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 67.7522 - 5.1643 1.00 2655 139 0.2008 0.2655 REMARK 3 2 5.1643 - 4.0992 1.00 2550 135 0.1895 0.2170 REMARK 3 3 4.0992 - 3.5811 1.00 2504 132 0.2031 0.2697 REMARK 3 4 3.5811 - 3.2537 1.00 2511 132 0.2386 0.2845 REMARK 3 5 3.2537 - 3.0205 1.00 2476 131 0.2838 0.3479 REMARK 3 6 3.0205 - 2.8424 1.00 2467 130 0.3119 0.3615 REMARK 3 7 2.8424 - 2.7000 1.00 2481 131 0.3548 0.3975 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.310 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 34.450 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.003 3685 REMARK 3 ANGLE : 0.776 5158 REMARK 3 CHIRALITY : 0.055 589 REMARK 3 PLANARITY : 0.003 525 REMARK 3 DIHEDRAL : 20.014 2173 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ALL REMARK 3 ORIGIN FOR THE GROUP (A): 16.6570 3.0935 18.8120 REMARK 3 T TENSOR REMARK 3 T11: 0.5229 T22: 0.5251 REMARK 3 T33: 0.4814 T12: 0.0376 REMARK 3 T13: -0.0169 T23: 0.0352 REMARK 3 L TENSOR REMARK 3 L11: 1.7100 L22: 3.6646 REMARK 3 L33: 4.0818 L12: 0.7769 REMARK 3 L13: -0.1935 L23: 0.5968 REMARK 3 S TENSOR REMARK 3 S11: 0.1554 S12: -0.0735 S13: 0.0088 REMARK 3 S21: 0.0510 S22: -0.2072 S23: -0.0809 REMARK 3 S31: -0.0229 S32: 0.6187 S33: 0.0454 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4IG8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-JAN-13. REMARK 100 THE DEPOSITION ID IS D_1000076712. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 77 REMARK 200 PH : 7.4 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X29A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.075 REMARK 200 MONOCHROMATOR : SI 111 CHANNEL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18604 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 67.700 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 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 61.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.17 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10 MM HEPES (PH 7.4), 350 MM NACL, AND REMARK 280 5 MM MGCL2, VAPOR DIFFUSION, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 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 35.60000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 49.30000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 46.60000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 49.30000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 35.60000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 46.60000 REMARK 290 SMTRY3 4 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 5640 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20200 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -58.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C 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 MET A 1 REMARK 465 MET A 2 REMARK 465 VAL A 121 REMARK 465 GLN A 122 REMARK 465 ALA A 123 REMARK 465 PRO A 124 REMARK 465 ARG A 125 REMARK 465 TRP A 126 REMARK 465 ALA A 347 REMARK 465 GLY A 348 REMARK 465 PRO A 349 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O HOH C 110 O HOH C 113 1.92 REMARK 500 O HOH A 516 O HOH A 527 2.13 REMARK 500 O ILE A 174 OG1 THR A 178 2.18 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 ARG A 44 -31.80 -137.90 REMARK 500 PRO A 52 100.28 -57.29 REMARK 500 ARG A 113 47.69 -91.75 REMARK 500 SER A 138 -167.90 -104.05 REMARK 500 LEU A 141 -71.70 -110.29 REMARK 500 LYS A 182 75.90 -106.58 REMARK 500 PHE A 186 27.70 -144.18 REMARK 500 MET A 245 5.09 178.47 REMARK 500 ASN A 334 -169.42 -76.40 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 401 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 75 OD2 REMARK 620 2 ASP A 148 OD2 74.4 REMARK 620 3 DTP A 403 O2A 87.7 148.3 REMARK 620 N 1 2 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 ASP A 77 OD1 REMARK 620 2 DTP A 403 O1B 91.3 REMARK 620 3 DTP A 403 O1G 146.2 56.8 REMARK 620 4 DTP A 403 O2A 84.3 66.4 73.2 REMARK 620 N 1 2 3 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 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 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DTP A 403 DBREF 4IG8 A 1 347 UNP P00973 OAS1_HUMAN 1 347 DBREF 4IG8 B 1 18 PDB 4IG8 4IG8 1 18 DBREF 4IG8 C 1 18 PDB 4IG8 4IG8 1 18 SEQADV 4IG8 GLY A 348 UNP P00973 EXPRESSION TAG SEQADV 4IG8 PRO A 349 UNP P00973 EXPRESSION TAG SEQRES 1 A 349 MET MET ASP LEU ARG ASN THR PRO ALA LYS SER LEU ASP SEQRES 2 A 349 LYS PHE ILE GLU ASP TYR LEU LEU PRO ASP THR CYS PHE SEQRES 3 A 349 ARG MET GLN ILE ASN HIS ALA ILE ASP ILE ILE CYS GLY SEQRES 4 A 349 PHE LEU LYS GLU ARG CYS PHE ARG GLY SER SER TYR PRO SEQRES 5 A 349 VAL CYS VAL SER LYS VAL VAL LYS GLY GLY SER SER GLY SEQRES 6 A 349 LYS GLY THR THR LEU ARG GLY ARG SER ASP ALA ASP LEU SEQRES 7 A 349 VAL VAL PHE LEU SER PRO LEU THR THR PHE GLN ASP GLN SEQRES 8 A 349 LEU ASN ARG ARG GLY GLU PHE ILE GLN GLU ILE ARG ARG SEQRES 9 A 349 GLN LEU GLU ALA CYS GLN ARG GLU ARG ALA PHE SER VAL SEQRES 10 A 349 LYS PHE GLU VAL GLN ALA PRO ARG TRP GLY ASN PRO ARG SEQRES 11 A 349 ALA LEU SER PHE VAL LEU SER SER LEU GLN LEU GLY GLU SEQRES 12 A 349 GLY VAL GLU PHE ASP VAL LEU PRO ALA PHE ASP ALA LEU SEQRES 13 A 349 GLY GLN LEU THR GLY GLY TYR LYS PRO ASN PRO GLN ILE SEQRES 14 A 349 TYR VAL LYS LEU ILE GLU GLU CYS THR ASP LEU GLN LYS SEQRES 15 A 349 GLU GLY GLU PHE SER THR CYS PHE THR GLU LEU GLN ARG SEQRES 16 A 349 ASP PHE LEU LYS GLN ARG PRO THR LYS LEU LYS SER LEU SEQRES 17 A 349 ILE ARG LEU VAL LYS HIS TRP TYR GLN ASN CYS LYS LYS SEQRES 18 A 349 LYS LEU GLY LYS LEU PRO PRO GLN TYR ALA LEU GLU LEU SEQRES 19 A 349 LEU THR VAL TYR ALA TRP GLU ARG GLY SER MET LYS THR SEQRES 20 A 349 HIS PHE ASN THR ALA GLN GLY PHE ARG THR VAL LEU GLU SEQRES 21 A 349 LEU VAL ILE ASN TYR GLN GLN LEU CYS ILE TYR TRP THR SEQRES 22 A 349 LYS TYR TYR ASP PHE LYS ASN PRO ILE ILE GLU LYS TYR SEQRES 23 A 349 LEU ARG ARG GLN LEU THR LYS PRO ARG PRO VAL ILE LEU SEQRES 24 A 349 ASP PRO ALA ASP PRO THR GLY ASN LEU GLY GLY GLY ASP SEQRES 25 A 349 PRO LYS GLY TRP ARG GLN LEU ALA GLN GLU ALA GLU ALA SEQRES 26 A 349 TRP LEU ASN TYR PRO CYS PHE LYS ASN TRP ASP GLY SER SEQRES 27 A 349 PRO VAL SER SER TRP ILE LEU LEU ALA GLY PRO SEQRES 1 B 18 G G C U U U U G A C C U U SEQRES 2 B 18 U A U G C SEQRES 1 C 18 G C A U A A A G G U C A A SEQRES 2 C 18 A A G C C HET MG A 401 1 HET MG A 402 1 HET DTP A 403 30 HETNAM MG MAGNESIUM ION HETNAM DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE FORMUL 4 MG 2(MG 2+) FORMUL 6 DTP C10 H16 N5 O12 P3 FORMUL 7 HOH *50(H2 O) HELIX 1 1 PRO A 8 LYS A 10 5 3 HELIX 2 2 SER A 11 LEU A 20 1 10 HELIX 3 3 ASP A 23 ARG A 44 1 22 HELIX 4 4 GLY A 62 GLY A 67 1 6 HELIX 5 5 THR A 87 GLU A 112 1 26 HELIX 6 6 ASN A 166 LEU A 180 1 15 HELIX 7 7 PHE A 186 CYS A 189 5 4 HELIX 8 8 PHE A 190 ASP A 196 1 7 HELIX 9 9 PRO A 202 GLY A 224 1 23 HELIX 10 10 PRO A 228 SER A 244 1 17 HELIX 11 11 ASN A 250 ASN A 264 1 15 HELIX 12 12 TYR A 265 GLN A 267 5 3 HELIX 13 13 ASN A 280 LEU A 291 1 12 HELIX 14 14 ASP A 312 LEU A 327 1 16 HELIX 15 15 ASN A 328 LYS A 333 5 6 SHEET 1 A 5 VAL A 55 GLY A 61 0 SHEET 2 A 5 ALA A 76 LEU A 82 -1 O ASP A 77 N GLY A 61 SHEET 3 A 5 VAL A 145 ALA A 152 1 O LEU A 150 N VAL A 80 SHEET 4 A 5 LEU A 132 SER A 137 -1 N LEU A 136 O VAL A 145 SHEET 5 A 5 SER A 116 LYS A 118 -1 N SER A 116 O SER A 137 SHEET 1 B 3 CYS A 269 ILE A 270 0 SHEET 2 B 3 VAL A 297 ASP A 300 1 O VAL A 297 N ILE A 270 SHEET 3 B 3 ASP A 303 LEU A 308 -1 O LEU A 308 N ILE A 298 LINK OD2 ASP A 75 MG MG A 401 1555 1555 2.59 LINK OD1 ASP A 77 MG MG A 402 1555 1555 2.01 LINK OD2 ASP A 148 MG MG A 401 1555 1555 2.21 LINK MG MG A 401 O2A DTP A 403 1555 1555 2.58 LINK MG MG A 402 O1B DTP A 403 1555 1555 2.20 LINK MG MG A 402 O1G DTP A 403 1555 1555 2.41 LINK MG MG A 402 O2A DTP A 403 1555 1555 2.98 CISPEP 1 PHE A 119 GLU A 120 0 1.07 CISPEP 2 ARG A 295 PRO A 296 0 -3.80 SITE 1 AC1 4 ASP A 75 ASP A 77 ASP A 148 DTP A 403 SITE 1 AC2 3 ASP A 75 ASP A 77 DTP A 403 SITE 1 AC3 10 GLY A 62 SER A 63 SER A 74 ASP A 75 SITE 2 AC3 10 ASP A 77 LYS A 213 GLN A 229 MG A 401 SITE 3 AC3 10 MG A 402 HOH A 507 CRYST1 71.200 93.200 98.600 90.00 90.00 90.00 P 21 21 21 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 0.014045 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010730 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010142 0.00000