HEADER IMMUNE SYSTEM 02-SEP-10 3OQ2 TITLE STRUCTURE OF A CRISPR ASSOCIATED PROTEIN CAS2 FROM DESULFOVIBRIO TITLE 2 VULGARIS COMPND MOL_ID: 1; COMPND 2 MOLECULE: CRISPR-ASSOCIATED PROTEIN CAS2; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFOVIBRIO VULGARIS; SOURCE 3 ORGANISM_TAXID: 882; SOURCE 4 STRAIN: HILDENBOROUGH / ATCC 29579 / NCIMB 8303; SOURCE 5 GENE: CAS2, DVUA0135; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET28B KEYWDS FERREDOXIN FOLD, CRISPR, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR P.SAMAI,P.SMITH,S.SHUMAN REVDAT 3 21-FEB-24 3OQ2 1 REMARK SEQADV REVDAT 2 13-SEP-17 3OQ2 1 REMARK REVDAT 1 22-DEC-10 3OQ2 0 JRNL AUTH P.SAMAI,P.SMITH,S.SHUMAN JRNL TITL STRUCTURE OF A CRISPR-ASSOCIATED PROTEIN CAS2 FROM JRNL TITL 2 DESULFOVIBRIO VULGARIS. JRNL REF ACTA CRYSTALLOGR.,SECT.F V. 66 1552 2010 JRNL REFN ESSN 1744-3091 JRNL PMID 21139194 JRNL DOI 10.1107/S1744309110039801 REMARK 2 REMARK 2 RESOLUTION. 1.35 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.6.4_486) 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) : 1.35 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.08 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.010 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.6 REMARK 3 NUMBER OF REFLECTIONS : 43191 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.130 REMARK 3 R VALUE (WORKING SET) : 0.128 REMARK 3 FREE R VALUE : 0.177 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.970 REMARK 3 FREE R VALUE TEST SET COUNT : 2146 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 29.0854 - 2.9076 0.96 4349 227 0.1454 0.1852 REMARK 3 2 2.9076 - 2.3082 0.98 4364 236 0.1297 0.1685 REMARK 3 3 2.3082 - 2.0165 0.98 4346 251 0.1114 0.1713 REMARK 3 4 2.0165 - 1.8321 0.97 4305 236 0.1123 0.1754 REMARK 3 5 1.8321 - 1.7008 0.97 4306 210 0.1137 0.1609 REMARK 3 6 1.7008 - 1.6006 0.96 4189 192 0.1064 0.1712 REMARK 3 7 1.6006 - 1.5204 0.93 4113 224 0.1067 0.1579 REMARK 3 8 1.5204 - 1.4542 0.89 3965 204 0.1212 0.1799 REMARK 3 9 1.4542 - 1.3983 0.86 3795 186 0.1371 0.1914 REMARK 3 10 1.3983 - 1.3500 0.75 3313 180 0.1736 0.2485 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 0.50 REMARK 3 SHRINKAGE RADIUS : 0.40 REMARK 3 K_SOL : 0.45 REMARK 3 B_SOL : 66.87 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.130 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 15.330 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) : -2.70970 REMARK 3 B22 (A**2) : -0.67120 REMARK 3 B33 (A**2) : 1.41800 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.32500 REMARK 3 B23 (A**2) : 0.00000 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 : 0.006 1827 REMARK 3 ANGLE : 1.119 2499 REMARK 3 CHIRALITY : 0.066 252 REMARK 3 PLANARITY : 0.005 321 REMARK 3 DIHEDRAL : 14.386 711 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL 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 3OQ2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-SEP-10. REMARK 100 THE DEPOSITION ID IS D_1000061430. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-NOV-09 REMARK 200 TEMPERATURE (KELVIN) : 130 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 24-ID-E REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.98 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 45550 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.350 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 200 DATA REDUNDANCY : 3.500 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04900 REMARK 200 FOR THE DATA SET : 29.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.35 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 50.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.0 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.26 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.25 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN SOLUTION 0.85 MM DVUCAS2, REMARK 280 RESERVOIR SOLUTION 1 M LITHIUM SULFATE, 0.5 M AMMONIUM SULFATE REMARK 280 AND 0.1 M TRISODIUM CITRATE, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 53.93700 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 24.40500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 53.93700 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 24.40500 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2, 3 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 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 11780 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18120 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -172.0 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 101.26771 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 40.78847 REMARK 350 REMARK 350 BIOMOLECULE: 3 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 8250 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 21900 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -182.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 94.66142 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 81.57694 REMARK 350 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 3 1.000000 0.000000 0.000000 -6.60629 REMARK 350 BIOMT2 3 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 40.78847 REMARK 350 BIOMT1 4 -1.000000 0.000000 0.000000 101.26771 REMARK 350 BIOMT2 4 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 -1.000000 40.78847 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 CL CL A 105 LIES ON A SPECIAL POSITION. REMARK 375 S SO4 A 112 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 246 LIES ON A SPECIAL POSITION. 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 0 REMARK 465 MET A 1 REMARK 465 TYR A 2 REMARK 465 GLY A 3 REMARK 465 SER B 0 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 ASP A 19 CG OD1 OD2 REMARK 470 ARG A 24 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 68 CD OE1 OE2 REMARK 470 GLU A 97 CB CG CD OE1 OE2 REMARK 470 ARG B 24 CG CD NE CZ NH1 NH2 REMARK 470 ARG B 60 CD NE CZ NH1 NH2 REMARK 470 ASP B 95 CG OD1 OD2 REMARK 470 GLU B 97 O CB CG CD OE1 OE2 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 NA A 103 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 PHE A 17 O REMARK 620 2 TYR A 42 OH 163.1 REMARK 620 3 HOH A 127 O 127.9 66.4 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 NA A 103 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRS A 104 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 105 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 106 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 107 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 110 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CIT A 111 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 112 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CIT B 103 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CIT B 104 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 105 DBREF 3OQ2 A 1 102 UNP Q72WF4 Q72WF4_DESVH 1 102 DBREF 3OQ2 B 1 102 UNP Q72WF4 Q72WF4_DESVH 1 102 SEQADV 3OQ2 SER A 0 UNP Q72WF4 EXPRESSION TAG SEQADV 3OQ2 SER B 0 UNP Q72WF4 EXPRESSION TAG SEQRES 1 A 103 SER MET TYR GLY ASN ASP ALA MET LEU VAL LEU ILE SER SEQRES 2 A 103 TYR ASP VAL SER PHE GLU ASP PRO GLY GLY GLN ARG ARG SEQRES 3 A 103 LEU ARG ARG ILE ALA LYS ALA CYS GLN ASP TYR GLY GLN SEQRES 4 A 103 ARG VAL GLN TYR SER VAL PHE GLU CYS VAL VAL ASP PRO SEQRES 5 A 103 ALA GLN TRP ALA LYS LEU LYS HIS ARG LEU LEU SER GLU SEQRES 6 A 103 MET ASP LYS GLU LYS ASP CYS LEU ARG PHE TYR TYR LEU SEQRES 7 A 103 GLY ALA ASN TRP ARG ASN LYS VAL GLU HIS VAL GLY ALA SEQRES 8 A 103 LYS PRO ALA TYR ASP PRO GLU GLY PRO LEU ILE LEU SEQRES 1 B 103 SER MET TYR GLY ASN ASP ALA MET LEU VAL LEU ILE SER SEQRES 2 B 103 TYR ASP VAL SER PHE GLU ASP PRO GLY GLY GLN ARG ARG SEQRES 3 B 103 LEU ARG ARG ILE ALA LYS ALA CYS GLN ASP TYR GLY GLN SEQRES 4 B 103 ARG VAL GLN TYR SER VAL PHE GLU CYS VAL VAL ASP PRO SEQRES 5 B 103 ALA GLN TRP ALA LYS LEU LYS HIS ARG LEU LEU SER GLU SEQRES 6 B 103 MET ASP LYS GLU LYS ASP CYS LEU ARG PHE TYR TYR LEU SEQRES 7 B 103 GLY ALA ASN TRP ARG ASN LYS VAL GLU HIS VAL GLY ALA SEQRES 8 B 103 LYS PRO ALA TYR ASP PRO GLU GLY PRO LEU ILE LEU HET NA A 103 1 HET TRS A 104 16 HET CL A 105 1 HET SO4 A 106 5 HET SO4 A 107 5 HET SO4 A 110 5 HET CIT A 111 13 HET SO4 A 112 5 HET CIT B 103 13 HET CIT B 104 13 HET SO4 B 105 5 HETNAM NA SODIUM ION HETNAM TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL HETNAM CL CHLORIDE ION HETNAM SO4 SULFATE ION HETNAM CIT CITRIC ACID HETSYN TRS TRIS BUFFER FORMUL 3 NA NA 1+ FORMUL 4 TRS C4 H12 N O3 1+ FORMUL 5 CL CL 1- FORMUL 6 SO4 5(O4 S 2-) FORMUL 9 CIT 3(C6 H8 O7) FORMUL 14 HOH *318(H2 O) HELIX 1 1 ASP A 19 GLN A 34 1 16 HELIX 2 2 ASP A 50 MET A 65 1 16 HELIX 3 3 ASN A 80 ASN A 83 5 4 HELIX 4 4 PRO B 20 ASP B 35 1 16 HELIX 5 5 ASP B 50 MET B 65 1 16 HELIX 6 6 ASN B 80 ASN B 83 5 4 SHEET 1 A 5 GLY A 37 GLN A 41 0 SHEET 2 A 5 VAL A 44 VAL A 49 -1 O GLU A 46 N GLN A 38 SHEET 3 A 5 MET A 7 ASP A 14 -1 N ILE A 11 O PHE A 45 SHEET 4 A 5 CYS A 71 GLY A 78 -1 O ARG A 73 N SER A 12 SHEET 5 A 5 VAL B 85 GLY B 89 -1 O VAL B 88 N LEU A 72 SHEET 1 B 5 VAL A 85 GLY A 89 0 SHEET 2 B 5 CYS B 71 GLY B 78 -1 O LEU B 72 N VAL A 88 SHEET 3 B 5 MET B 7 ASP B 14 -1 N SER B 12 O ARG B 73 SHEET 4 B 5 VAL B 44 VAL B 49 -1 O PHE B 45 N ILE B 11 SHEET 5 B 5 GLY B 37 GLN B 41 -1 N GLN B 38 O GLU B 46 LINK O PHE A 17 NA NA A 103 1555 1555 2.92 LINK OH TYR A 42 NA NA A 103 1555 1555 3.03 LINK NA NA A 103 O HOH A 127 1555 1555 3.09 SITE 1 AC1 5 PHE A 17 GLN A 23 TYR A 42 HOH A 127 SITE 2 AC1 5 TYR B 42 SITE 1 AC2 8 SER A 16 ASP A 19 PRO A 20 GLY A 21 SITE 2 AC2 8 GLY A 22 ARG A 25 LYS A 69 HOH A 273 SITE 1 AC3 2 GLU A 18 HOH A 291 SITE 1 AC4 8 LYS A 56 ARG A 60 HOH A 130 HOH A 164 SITE 2 AC4 8 HOH A 168 HOH A 227 HOH A 237 GLN B 34 SITE 1 AC5 10 ARG A 27 ARG A 39 TYR A 42 HOH A 108 SITE 2 AC5 10 HOH A 109 HOH A 127 HOH A 139 HOH A 183 SITE 3 AC5 10 HOH A 282 ARG B 27 SITE 1 AC6 7 LEU A 77 GLY A 78 ALA A 79 ASN A 80 SITE 2 AC6 7 LYS A 84 HOH A 154 HOH A 286 SITE 1 AC7 13 GLY A 78 ALA A 79 ASN A 80 LYS A 84 SITE 2 AC7 13 HOH A 154 HOH A 166 HOH A 226 HOH A 257 SITE 3 AC7 13 HOH A 260 HOH A 269 HOH A 286 HOH A 288 SITE 4 AC7 13 LEU B 100 SITE 1 AC8 4 ARG A 27 ARG A 28 HOH A 190 HOH A 270 SITE 1 AC9 3 ARG B 24 ARG B 25 ARG B 28 SITE 1 BC1 7 GLY B 78 ALA B 79 ASN B 80 LYS B 84 SITE 2 BC1 7 HOH B 151 HOH B 205 HOH B 222 SITE 1 BC2 7 LEU B 77 GLY B 78 ALA B 79 ASN B 80 SITE 2 BC2 7 LYS B 84 HOH B 205 HOH B 222 CRYST1 107.874 48.810 41.320 90.00 99.20 90.00 C 1 2 1 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 0.009270 0.000000 0.001501 0.00000 SCALE2 0.000000 0.020488 0.000000 0.00000 SCALE3 0.000000 0.000000 0.024517 0.00000