HEADER CELL CYCLE 06-AUG-25 9S9H TITLE S. ISLANDICUS CDVA FILAMENT (CRYO-EM) COMPND MOL_ID: 1; COMPND 2 MOLECULE: CELL DIVISION PROTEIN CDVA; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROLOBUS ISLANDICUS; SOURCE 3 ORGANISM_TAXID: 43080; SOURCE 4 GENE: SIL_1169; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_VARIANT: C43 KEYWDS CELL DIVISION, ARCHAEA, CELL CYCLE EXPDTA ELECTRON MICROSCOPY AUTHOR R.SALZER,J.LOWE REVDAT 1 28-JAN-26 9S9H 0 JRNL AUTH T.DROBNIC,R.SALZER,T.NIERHAUS,M.K.X.JIANG,D.BELLINI, JRNL AUTH 2 A.STEINDORF,S.V.ALBERS,B.BAUM,J.LOWE JRNL TITL MOLECULAR STRUCTURE OF THE ESCRT-III-BASED ARCHAEAL CDVAB JRNL TITL 2 CELL DIVISION MACHINERY. JRNL REF PROC.NATL.ACAD.SCI.USA V. 123 41123 2026 JRNL REFN ESSN 1091-6490 JRNL PMID 41543908 JRNL DOI 10.1073/PNAS.2525941123 REMARK 2 REMARK 2 RESOLUTION. 4.07 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : RELION, RELION, PHENIX REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : 9S9G REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : RIGID BODY FIT REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 4.070 REMARK 3 NUMBER OF PARTICLES : 253803 REMARK 3 CTF CORRECTION METHOD : PHASE FLIPPING AND AMPLITUDE REMARK 3 CORRECTION REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 9S9H COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 06-AUG-25. REMARK 100 THE DEPOSITION ID IS D_1292149640. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : HELICAL REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : FILAMENT REMARK 245 PARTICLE TYPE : HELICAL REMARK 245 NAME OF SAMPLE : HELICAL FILAMENT OF CDVA REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : NULL REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 8.00 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : NULL REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : TFS KRIOS REMARK 245 DETECTOR TYPE : GATAN K2 QUANTUM (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 700.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 3500.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 4000.00 REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 300 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. 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: DECAMERIC 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 0.657210 0.753707 -0.000084 -70.21117 REMARK 350 BIOMT2 2 -0.753705 0.657209 0.002381 186.95544 REMARK 350 BIOMT3 2 0.001850 -0.001501 0.999997 64.28753 REMARK 350 BIOMT1 3 0.655191 -0.755463 -0.000006 188.02192 REMARK 350 BIOMT2 3 0.755461 0.655190 0.002355 -70.57930 REMARK 350 BIOMT3 3 -0.001775 -0.001547 0.999997 -63.79194 REMARK 350 BIOMT1 4 0.657210 0.753707 -0.000088 -70.21114 REMARK 350 BIOMT2 4 -0.753705 0.657209 0.002444 186.94681 REMARK 350 BIOMT3 4 0.001900 -0.001540 0.999997 64.28533 REMARK 350 BIOMT1 5 0.655199 -0.755456 -0.000063 188.02605 REMARK 350 BIOMT2 5 0.755453 0.655196 0.002827 -70.65024 REMARK 350 BIOMT3 5 -0.002094 -0.001900 0.999996 -63.65231 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 PRO A 2 REMARK 465 VAL A 3 REMARK 465 ASP A 197 REMARK 465 LYS A 198 REMARK 465 GLU A 199 REMARK 465 SER A 200 REMARK 465 ILE A 201 REMARK 465 GLU A 202 REMARK 465 LEU A 203 REMARK 465 LYS A 204 REMARK 465 PRO A 205 REMARK 465 LEU A 206 REMARK 465 GLY A 207 REMARK 465 SER A 208 REMARK 465 LEU A 209 REMARK 465 SER A 210 REMARK 465 THR A 211 REMARK 465 SER A 212 REMARK 465 GLN A 213 REMARK 465 GLN A 214 REMARK 465 GLY A 215 REMARK 465 GLU A 216 REMARK 465 ALA A 217 REMARK 465 LYS A 218 REMARK 465 SER A 219 REMARK 465 ASP A 220 REMARK 465 GLN A 221 REMARK 465 SER A 222 REMARK 465 LYS A 223 REMARK 465 SER A 224 REMARK 465 GLU A 225 REMARK 465 ILE A 226 REMARK 465 PRO A 227 REMARK 465 LEU A 228 REMARK 465 PRO A 229 REMARK 465 ILE A 230 REMARK 465 PRO A 231 REMARK 465 VAL A 232 REMARK 465 LYS A 233 REMARK 465 VAL A 234 REMARK 465 ILE A 235 REMARK 465 ASN A 236 REMARK 465 THR A 237 REMARK 465 LEU A 238 REMARK 465 MET B 1 REMARK 465 PRO B 2 REMARK 465 VAL B 3 REMARK 465 ASP B 197 REMARK 465 LYS B 198 REMARK 465 GLU B 199 REMARK 465 SER B 200 REMARK 465 ILE B 201 REMARK 465 GLU B 202 REMARK 465 LEU B 203 REMARK 465 LYS B 204 REMARK 465 PRO B 205 REMARK 465 LEU B 206 REMARK 465 GLY B 207 REMARK 465 SER B 208 REMARK 465 LEU B 209 REMARK 465 SER B 210 REMARK 465 THR B 211 REMARK 465 SER B 212 REMARK 465 GLN B 213 REMARK 465 GLN B 214 REMARK 465 GLY B 215 REMARK 465 GLU B 216 REMARK 465 ALA B 217 REMARK 465 LYS B 218 REMARK 465 SER B 219 REMARK 465 ASP B 220 REMARK 465 GLN B 221 REMARK 465 SER B 222 REMARK 465 LYS B 223 REMARK 465 SER B 224 REMARK 465 GLU B 225 REMARK 465 ILE B 226 REMARK 465 PRO B 227 REMARK 465 LEU B 228 REMARK 465 PRO B 229 REMARK 465 ILE B 230 REMARK 465 PRO B 231 REMARK 465 VAL B 232 REMARK 465 LYS B 233 REMARK 465 VAL B 234 REMARK 465 ILE B 235 REMARK 465 ASN B 236 REMARK 465 THR B 237 REMARK 465 LEU B 238 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 ILE A 28 -61.45 -102.56 REMARK 500 GLN A 45 38.63 -99.87 REMARK 500 SER A 158 12.23 58.24 REMARK 500 ILE B 28 -61.49 -102.50 REMARK 500 GLN B 45 38.65 -99.92 REMARK 500 SER B 158 12.19 58.25 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-54678 RELATED DB: EMDB REMARK 900 S. ISLANDICUS CDVA FILAMENT (CRYO-EM) DBREF 9S9H A 1 238 UNP M9U931 M9U931_SACIS 1 238 DBREF 9S9H B 1 238 UNP M9U931 M9U931_SACIS 1 238 SEQRES 1 A 238 MET PRO VAL SER TYR GLU VAL LEU THR LYS PHE ILE GLY SEQRES 2 A 238 GLN LYS VAL LYS ASP ILE TYR GLY ARG GLU PHE GLY TYR SEQRES 3 A 238 LEU ILE HIS VAL TYR SER GLU ILE ASP GLY SER ILE THR SEQRES 4 A 238 GLY ILE GLU VAL ALA GLN GLY SER SER ILE LEU THR MET SEQRES 5 A 238 GLY PRO GLU ARG ILE LYS LEU ASP GLY ASP SER ILE LEU SEQRES 6 A 238 ILE LEU PRO ASP TRP LYS ALA GLU ALA ILE ARG ILE LEU SEQRES 7 A 238 SER LEU MET GLU LYS ILE ARG LYS ARG GLN ARG ALA LEU SEQRES 8 A 238 GLU GLU LEU TYR ASN LYS GLN GLU ILE PRO LYS SER ASP SEQRES 9 A 238 TYR ASP ASP MET LYS ARG LYS LEU ASP THR GLU MET LEU SEQRES 10 A 238 LYS VAL LYS ASP ASP GLN ASN LYS LEU LYS GLY LYS LEU SEQRES 11 A 238 LYS SER ARG LEU ASN ASP ILE GLU ASP GLN LEU ALA HIS SEQRES 12 A 238 ILE ASP LYS ALA VAL ILE SER LEU LYS MET SER TYR ILE SEQRES 13 A 238 SER SER GLU ILE PRO GLU ASN ALA TYR LYS GLY SER MET SEQRES 14 A 238 GLU VAL LEU ARG GLN SER LYS ASP SER TYR THR LEU GLU SEQRES 15 A 238 ARG ASP ASP ILE ARG LYS THR LEU ASP ARG LEU ASP SER SEQRES 16 A 238 LEU ASP LYS GLU SER ILE GLU LEU LYS PRO LEU GLY SER SEQRES 17 A 238 LEU SER THR SER GLN GLN GLY GLU ALA LYS SER ASP GLN SEQRES 18 A 238 SER LYS SER GLU ILE PRO LEU PRO ILE PRO VAL LYS VAL SEQRES 19 A 238 ILE ASN THR LEU SEQRES 1 B 238 MET PRO VAL SER TYR GLU VAL LEU THR LYS PHE ILE GLY SEQRES 2 B 238 GLN LYS VAL LYS ASP ILE TYR GLY ARG GLU PHE GLY TYR SEQRES 3 B 238 LEU ILE HIS VAL TYR SER GLU ILE ASP GLY SER ILE THR SEQRES 4 B 238 GLY ILE GLU VAL ALA GLN GLY SER SER ILE LEU THR MET SEQRES 5 B 238 GLY PRO GLU ARG ILE LYS LEU ASP GLY ASP SER ILE LEU SEQRES 6 B 238 ILE LEU PRO ASP TRP LYS ALA GLU ALA ILE ARG ILE LEU SEQRES 7 B 238 SER LEU MET GLU LYS ILE ARG LYS ARG GLN ARG ALA LEU SEQRES 8 B 238 GLU GLU LEU TYR ASN LYS GLN GLU ILE PRO LYS SER ASP SEQRES 9 B 238 TYR ASP ASP MET LYS ARG LYS LEU ASP THR GLU MET LEU SEQRES 10 B 238 LYS VAL LYS ASP ASP GLN ASN LYS LEU LYS GLY LYS LEU SEQRES 11 B 238 LYS SER ARG LEU ASN ASP ILE GLU ASP GLN LEU ALA HIS SEQRES 12 B 238 ILE ASP LYS ALA VAL ILE SER LEU LYS MET SER TYR ILE SEQRES 13 B 238 SER SER GLU ILE PRO GLU ASN ALA TYR LYS GLY SER MET SEQRES 14 B 238 GLU VAL LEU ARG GLN SER LYS ASP SER TYR THR LEU GLU SEQRES 15 B 238 ARG ASP ASP ILE ARG LYS THR LEU ASP ARG LEU ASP SER SEQRES 16 B 238 LEU ASP LYS GLU SER ILE GLU LEU LYS PRO LEU GLY SER SEQRES 17 B 238 LEU SER THR SER GLN GLN GLY GLU ALA LYS SER ASP GLN SEQRES 18 B 238 SER LYS SER GLU ILE PRO LEU PRO ILE PRO VAL LYS VAL SEQRES 19 B 238 ILE ASN THR LEU HELIX 1 AA1 TYR A 5 PHE A 11 1 7 HELIX 2 AA2 GLY A 53 GLU A 55 5 3 HELIX 3 AA3 PRO A 68 ASN A 96 1 29 HELIX 4 AA4 PRO A 101 SER A 157 1 57 HELIX 5 AA5 PRO A 161 LEU A 196 1 36 HELIX 6 AA6 TYR B 5 PHE B 11 1 7 HELIX 7 AA7 GLY B 53 GLU B 55 5 3 HELIX 8 AA8 PRO B 68 ASN B 96 1 29 HELIX 9 AA9 PRO B 101 SER B 157 1 57 HELIX 10 AB1 PRO B 161 LEU B 196 1 36 SHEET 1 AA1 4 LYS A 15 LYS A 17 0 SHEET 2 AA1 4 GLU A 23 SER A 32 -1 O PHE A 24 N VAL A 16 SHEET 3 AA1 4 ILE A 38 ALA A 44 -1 O ALA A 44 N TYR A 26 SHEET 4 AA1 4 ILE A 49 MET A 52 -1 O LEU A 50 N VAL A 43 SHEET 1 AA2 2 ILE A 57 LEU A 59 0 SHEET 2 AA2 2 ILE A 64 ILE A 66 -1 O LEU A 65 N LYS A 58 SHEET 1 AA3 4 LYS B 15 LYS B 17 0 SHEET 2 AA3 4 GLU B 23 SER B 32 -1 O PHE B 24 N VAL B 16 SHEET 3 AA3 4 ILE B 38 ALA B 44 -1 O ALA B 44 N TYR B 26 SHEET 4 AA3 4 ILE B 49 MET B 52 -1 O LEU B 50 N VAL B 43 SHEET 1 AA4 2 ILE B 57 LEU B 59 0 SHEET 2 AA4 2 ILE B 64 ILE B 66 -1 O LEU B 65 N LYS B 58 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MASTER 229 0 0 10 12 0 0 6 3130 2 0 38 END