HEADER VIRAL PROTEIN 26-NOV-25 9TET TITLE OLIGOMERISATION OF TYPE III CRISPR-ASSOCIATED CSX15 TO REGULATE TITLE 2 ANTIVIRAL SIGNALLING COMPND MOL_ID: 1; COMPND 2 MOLECULE: CRISPR-ASSOCIATED CSX15; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PSEUDOMONAS FLUORESCENS; SOURCE 3 ORGANISM_TAXID: 294; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS RING NUCLEASE CRISPR BACTERIAL DEFENSE, VIRAL PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR S.A.MCMAHON,H.CHI,S.GRAHAM,M.F.WHITE REVDAT 1 15-APR-26 9TET 0 JRNL AUTH M.F.WHITE,S.A.MCMAHON,H.CHI,S.GRAHAM JRNL TITL THE CRISPR RING NUCLEASE CSX15 OLIGOMERISES ON CYCLIC JRNL TITL 2 NUCLEOTIDE BINDING TO REGULATE ANTIVIRAL DEFENCE. JRNL REF BIOCHEM.J. 2026 JRNL REFN ESSN 1470-8728 JRNL PMID 41911342 JRNL DOI 10.1042/BCJ20260019 REMARK 2 REMARK 2 RESOLUTION. 1.88 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 2.0_5885 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 : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.88 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 44.66 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.330 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 3 NUMBER OF REFLECTIONS : 11805 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.200 REMARK 3 R VALUE (WORKING SET) : 0.198 REMARK 3 FREE R VALUE : 0.246 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.870 REMARK 3 FREE R VALUE TEST SET COUNT : 575 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 44.6600 - 2.9900 1.00 2939 112 0.1668 0.2131 REMARK 3 2 2.9900 - 2.3700 1.00 2814 149 0.2451 0.2725 REMARK 3 3 2.3700 - 2.0700 1.00 2798 140 0.2312 0.2760 REMARK 3 4 2.0700 - 1.8800 0.97 2679 174 0.3006 0.3276 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 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) : 0.199 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 26.956 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 53.24 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 : 0.007 1008 REMARK 3 ANGLE : 0.848 1371 REMARK 3 CHIRALITY : 0.053 159 REMARK 3 PLANARITY : 0.007 176 REMARK 3 DIHEDRAL : 16.961 361 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): 15.0824 -34.7158 -2.0512 REMARK 3 T TENSOR REMARK 3 T11: 0.1675 T22: 0.3125 REMARK 3 T33: 0.2394 T12: -0.0444 REMARK 3 T13: 0.0159 T23: 0.0054 REMARK 3 L TENSOR REMARK 3 L11: 3.0555 L22: 1.8773 REMARK 3 L33: 4.4673 L12: -0.8351 REMARK 3 L13: 0.4024 L23: 0.3531 REMARK 3 S TENSOR REMARK 3 S11: -0.0053 S12: 0.2177 S13: 0.0140 REMARK 3 S21: -0.0245 S22: 0.0583 S23: 0.2384 REMARK 3 S31: -0.2185 S32: -0.4980 S33: -0.0612 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 9TET COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 27-NOV-25. REMARK 100 THE DEPOSITION ID IS D_1292142315. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 02-OCT-24 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : DIAMOND REMARK 200 BEAMLINE : I04 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9537 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER2 XE 16M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DIALS REMARK 200 DATA SCALING SOFTWARE : DIALS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11875 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.880 REMARK 200 RESOLUTION RANGE LOW (A) : 77.345 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 40.00 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 18.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.88 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.91 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 (%): 46.04 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.28 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M SODIUM/POTASSIUM PHOSPHATE PH REMARK 280 7.5 0.1 M HEPES 7.5 22.5 % V/V PEG SMEAR MEDIUM 10 % V/V REMARK 280 GLYCEROL, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 62 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 -X,-Y,Z REMARK 290 5555 Y,-X+Y,Z+2/3 REMARK 290 6555 X-Y,X,Z+1/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 20.94200 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 10.47100 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 20.94200 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 10.47100 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: 4560 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12120 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -31.0 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 44.65500 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 -77.34473 REMARK 350 BIOMT3 2 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 GLY A -6 REMARK 465 ALA A -5 REMARK 465 ASN A -4 REMARK 465 ALA A -3 REMARK 465 MET A -2 REMARK 465 ALA A -1 REMARK 465 HIS A 0 REMARK 465 MET A 1 REMARK 465 THR A 2 REMARK 465 LEU A 130 REMARK 465 GLY A 131 REMARK 465 LEU A 132 REMARK 465 SER A 133 REMARK 465 ASN A 134 REMARK 465 VAL A 135 REMARK 465 PRO A 136 REMARK 465 PRO A 137 REMARK 465 GLU A 138 REMARK 465 GLN A 139 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 LEU A 96 CD1 REMARK 470 TYR A 102 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 GLU A 107 CG CD OE1 OE2 REMARK 470 LYS A 128 CG CD CE NZ DBREF 9TET A -6 139 PDB 9TET 9TET -6 139 SEQRES 1 A 146 GLY ALA ASN ALA MET ALA HIS MET THR GLY GLN ILE ILE SEQRES 2 A 146 ASN PHE SER GLY HIS ARG LEU SER THR GLU ALA GLU ALA SEQRES 3 A 146 VAL LEU ALA LEU HIS PHE GLU LYS VAL ILE ASP GLY GLN SEQRES 4 A 146 TRP PRO GLU PHE ASP PHE ASN LEU PRO ILE THR ALA GLN SEQRES 5 A 146 ILE GLN SER ALA LEU SER VAL LEU PRO ALA THR LEU ASP SEQRES 6 A 146 GLY THR LYS ALA VAL THR ILE ILE PRO PRO GLY GLN SER SEQRES 7 A 146 THR LEU ALA VAL LEU LEU VAL SER PHE LEU HIS GLY LEU SEQRES 8 A 146 LEU GLY HIS PHE PRO ARG ILE CYS TYR LEU GLU LEU SER SEQRES 9 A 146 SER SER GLY LEU TYR LEU PRO ARG PHE GLU THR GLY ILE SEQRES 10 A 146 SER ALA GLN GLU THR ARG LEU ALA GLY ARG ARG PHE ARG SEQRES 11 A 146 LEU GLN ARG ALA LYS SER LEU GLY LEU SER ASN VAL PRO SEQRES 12 A 146 PRO GLU GLN HET GOL A 201 6 HET PO4 A 202 5 HETNAM GOL GLYCEROL HETNAM PO4 PHOSPHATE ION HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL FORMUL 2 GOL C3 H8 O3 FORMUL 3 PO4 O4 P 3- FORMUL 4 HOH *32(H2 O) HELIX 1 AA1 SER A 14 PHE A 25 1 12 HELIX 2 AA2 PRO A 41 VAL A 52 1 12 HELIX 3 AA3 GLN A 70 GLY A 86 1 17 HELIX 4 AA4 ALA A 112 LYS A 128 1 17 SHEET 1 AA1 5 VAL A 28 ASP A 30 0 SHEET 2 AA1 5 ILE A 5 ASN A 7 1 N ASN A 7 O ILE A 29 SHEET 3 AA1 5 THR A 64 ILE A 66 1 O ILE A 66 N ILE A 6 SHEET 4 AA1 5 ARG A 90 ILE A 91 1 O ARG A 90 N ILE A 65 SHEET 5 AA1 5 ILE A 110 SER A 111 -1 O ILE A 110 N ILE A 91 CRYST1 89.310 89.310 31.413 90.00 90.00 120.00 P 62 6 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 0.011197 0.006465 0.000000 0.00000 SCALE2 0.000000 0.012929 0.000000 0.00000 SCALE3 0.000000 0.000000 0.031834 0.00000 CONECT 978 979 980 CONECT 979 978 CONECT 980 978 981 982 CONECT 981 980 CONECT 982 980 983 CONECT 983 982 CONECT 984 985 986 987 988 CONECT 985 984 CONECT 986 984 CONECT 987 984 CONECT 988 984 MASTER 258 0 2 4 5 0 0 6 1012 1 11 12 END