HEADER CELL CYCLE 06-AUG-25 9S97 TITLE CDVB2 FILAMENT - LOW TWIST COMPND MOL_ID: 1; COMPND 2 MOLECULE: CELL DIVISION PROTEIN B2; COMPND 3 CHAIN: A, B, C; COMPND 4 SYNONYM: ESCRT-III HOMOLOG; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SULFOLOBUS ACIDOCALDARIUS; SOURCE 3 ORGANISM_TAXID: 2285; SOURCE 4 STRAIN: MW001; SOURCE 5 GENE: CDVB2, SACI_1416; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_VARIANT: C43 KEYWDS CELL DIVISION, ESCRT-III, MEMBRANE REMODELLING, CELL CYCLE EXPDTA ELECTRON MICROSCOPY AUTHOR T.DROBNIC,J.LOWE REVDAT 1 28-JAN-26 9S97 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. 3.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : CRYOLO, EPU, CTFFIND, UCSF CHIMERAX, REMARK 3 RELION, PHENIX, COOT, ISOLDE REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : NULL REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : AB INITIO MODEL 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) : 3.200 REMARK 3 NUMBER OF PARTICLES : 136416 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 9S97 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_1292149610. 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 : FILAMENT OF PURIFIED CDVB2 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 : 6.00 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 : FEI FALCON IV (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 1000.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2600.00 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) : 3586.00 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: 18-MERIC 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 350 BIOMT1 2 0.999550 0.029155 0.007109 -4.77287 REMARK 350 BIOMT2 2 -0.029141 0.999573 -0.002077 3.93613 REMARK 350 BIOMT3 2 -0.007166 0.001869 0.999973 -37.34357 REMARK 350 BIOMT1 3 0.999550 -0.029157 0.007066 2.95894 REMARK 350 BIOMT2 3 0.029170 0.999573 -0.001758 -3.46554 REMARK 350 BIOMT3 3 -0.007011 0.001964 0.999973 38.92724 REMARK 350 BIOMT1 4 -0.999975 0.000128 0.007110 246.21272 REMARK 350 BIOMT2 4 -0.000144 -0.999997 -0.002239 247.43660 REMARK 350 BIOMT3 4 0.007110 -0.002240 0.999972 -0.44940 REMARK 350 BIOMT1 5 -0.999549 -0.029186 0.007119 249.51448 REMARK 350 BIOMT2 5 0.029172 -0.999572 -0.002054 243.80875 REMARK 350 BIOMT3 5 0.007176 -0.001845 0.999973 -38.66378 REMARK 350 BIOMT1 6 -0.999548 0.029216 0.007081 242.83705 REMARK 350 BIOMT2 6 -0.029229 -0.999571 -0.001836 250.85930 REMARK 350 BIOMT3 6 0.007025 -0.002043 0.999973 37.69123 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 ALA A 2 REMARK 465 ASP A 3 REMARK 465 VAL A 4 REMARK 465 ASN A 5 REMARK 465 ASP A 6 REMARK 465 PHE A 7 REMARK 465 LEU A 8 REMARK 465 ARG A 9 REMARK 465 ASN A 10 REMARK 465 TRP A 11 REMARK 465 GLY A 12 REMARK 465 GLY A 13 REMARK 465 ARG A 14 REMARK 465 GLN A 15 REMARK 465 PHE A 206 REMARK 465 ALA A 207 REMARK 465 THR A 208 REMARK 465 SER A 209 REMARK 465 VAL A 210 REMARK 465 ASP A 211 REMARK 465 GLN A 212 REMARK 465 LYS A 213 REMARK 465 THR A 214 REMARK 465 ASN A 215 REMARK 465 ALA A 216 REMARK 465 ASN A 217 REMARK 465 GLN A 218 REMARK 465 LYS A 219 REMARK 465 MET B 1 REMARK 465 ALA B 2 REMARK 465 ASP B 3 REMARK 465 VAL B 4 REMARK 465 ASN B 5 REMARK 465 ASP B 6 REMARK 465 PHE B 7 REMARK 465 LEU B 8 REMARK 465 ARG B 9 REMARK 465 ASN B 10 REMARK 465 TRP B 11 REMARK 465 GLY B 12 REMARK 465 GLY B 13 REMARK 465 ARG B 14 REMARK 465 SER B 205 REMARK 465 PHE B 206 REMARK 465 ALA B 207 REMARK 465 THR B 208 REMARK 465 SER B 209 REMARK 465 VAL B 210 REMARK 465 ASP B 211 REMARK 465 GLN B 212 REMARK 465 LYS B 213 REMARK 465 THR B 214 REMARK 465 ASN B 215 REMARK 465 ALA B 216 REMARK 465 ASN B 217 REMARK 465 GLN B 218 REMARK 465 LYS B 219 REMARK 465 MET C 1 REMARK 465 ALA C 2 REMARK 465 ASP C 3 REMARK 465 VAL C 4 REMARK 465 ASN C 5 REMARK 465 ASP C 6 REMARK 465 PHE C 7 REMARK 465 LEU C 8 REMARK 465 ARG C 9 REMARK 465 ASN C 10 REMARK 465 TRP C 11 REMARK 465 GLY C 12 REMARK 465 GLY C 13 REMARK 465 ARG C 14 REMARK 465 PHE C 206 REMARK 465 ALA C 207 REMARK 465 THR C 208 REMARK 465 SER C 209 REMARK 465 VAL C 210 REMARK 465 ASP C 211 REMARK 465 GLN C 212 REMARK 465 LYS C 213 REMARK 465 THR C 214 REMARK 465 ASN C 215 REMARK 465 ALA C 216 REMARK 465 ASN C 217 REMARK 465 GLN C 218 REMARK 465 LYS C 219 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 C 171 56.79 37.86 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-54673 RELATED DB: EMDB REMARK 900 CDVB2 FILAMENT - LOW TWIST DBREF 9S97 A 1 219 UNP Q4J8Y4 CDVB2_SULAC 1 219 DBREF 9S97 B 1 219 UNP Q4J8Y4 CDVB2_SULAC 1 219 DBREF 9S97 C 1 219 UNP Q4J8Y4 CDVB2_SULAC 1 219 SEQRES 1 A 219 MET ALA ASP VAL ASN ASP PHE LEU ARG ASN TRP GLY GLY SEQRES 2 A 219 ARG GLN GLU PRO THR ILE SER GLU LYS ILE LYS ASN LEU SEQRES 3 A 219 PHE LYS SER GLN GLN PRO LEU ARG TYR ARG LEU VAL MET SEQRES 4 A 219 ALA ASN TYR ARG LEU ARG THR THR ILE SER ARG LEU ASP SEQRES 5 A 219 VAL TYR ILE SER LYS LEU GLN GLU ARG ASP ARG SER LEU SEQRES 6 A 219 PHE GLU LYS VAL VAL GLU SER GLN ILE SER LYS ASP SER SEQRES 7 A 219 ALA ARG ALA ALA MET TYR ALA ASN GLU ILE ALA GLU ILE SEQRES 8 A 219 ARG LYS ILE THR LYS GLN LEU LEU THR THR GLU ILE ALA SEQRES 9 A 219 LEU GLU GLN VAL GLN LEU ARG LEU GLU THR ILE THR GLU SEQRES 10 A 219 ILE GLY ASP ILE PHE THR SER LEU VAL PRO VAL ILE GLY SEQRES 11 A 219 VAL ILE ARG GLU LEU ARG ASN VAL MET LYS GLY VAL MET SEQRES 12 A 219 PRO GLU LEU SER ILE GLU LEU ALA ASP LEU GLU GLU GLY SEQRES 13 A 219 LEU GLN GLU VAL VAL LEU GLU ALA GLY GLU PHE THR GLY SEQRES 14 A 219 ALA ARG VAL ASP PHE ALA THR SER SER PRO GLU ALA ARG SEQRES 15 A 219 LYS ILE LEU ASP GLU ALA SER ALA VAL ALA GLU GLN ARG SEQRES 16 A 219 MET LYS GLU LYS PHE PRO SER LEU PRO SER PHE ALA THR SEQRES 17 A 219 SER VAL ASP GLN LYS THR ASN ALA ASN GLN LYS SEQRES 1 B 219 MET ALA ASP VAL ASN ASP PHE LEU ARG ASN TRP GLY GLY SEQRES 2 B 219 ARG GLN GLU PRO THR ILE SER GLU LYS ILE LYS ASN LEU SEQRES 3 B 219 PHE LYS SER GLN GLN PRO LEU ARG TYR ARG LEU VAL MET SEQRES 4 B 219 ALA ASN TYR ARG LEU ARG THR THR ILE SER ARG LEU ASP SEQRES 5 B 219 VAL TYR ILE SER LYS LEU GLN GLU ARG ASP ARG SER LEU SEQRES 6 B 219 PHE GLU LYS VAL VAL GLU SER GLN ILE SER LYS ASP SER SEQRES 7 B 219 ALA ARG ALA ALA MET TYR ALA ASN GLU ILE ALA GLU ILE SEQRES 8 B 219 ARG LYS ILE THR LYS GLN LEU LEU THR THR GLU ILE ALA SEQRES 9 B 219 LEU GLU GLN VAL GLN LEU ARG LEU GLU THR ILE THR GLU SEQRES 10 B 219 ILE GLY ASP ILE PHE THR SER LEU VAL PRO VAL ILE GLY SEQRES 11 B 219 VAL ILE ARG GLU LEU ARG ASN VAL MET LYS GLY VAL MET SEQRES 12 B 219 PRO GLU LEU SER ILE GLU LEU ALA ASP LEU GLU GLU GLY SEQRES 13 B 219 LEU GLN GLU VAL VAL LEU GLU ALA GLY GLU PHE THR GLY SEQRES 14 B 219 ALA ARG VAL ASP PHE ALA THR SER SER PRO GLU ALA ARG SEQRES 15 B 219 LYS ILE LEU ASP GLU ALA SER ALA VAL ALA GLU GLN ARG SEQRES 16 B 219 MET LYS GLU LYS PHE PRO SER LEU PRO SER PHE ALA THR SEQRES 17 B 219 SER VAL ASP GLN LYS THR ASN ALA ASN GLN LYS SEQRES 1 C 219 MET ALA ASP VAL ASN ASP PHE LEU ARG ASN TRP GLY GLY SEQRES 2 C 219 ARG GLN GLU PRO THR ILE SER GLU LYS ILE LYS ASN LEU SEQRES 3 C 219 PHE LYS SER GLN GLN PRO LEU ARG TYR ARG LEU VAL MET SEQRES 4 C 219 ALA ASN TYR ARG LEU ARG THR THR ILE SER ARG LEU ASP SEQRES 5 C 219 VAL TYR ILE SER LYS LEU GLN GLU ARG ASP ARG SER LEU SEQRES 6 C 219 PHE GLU LYS VAL VAL GLU SER GLN ILE SER LYS ASP SER SEQRES 7 C 219 ALA ARG ALA ALA MET TYR ALA ASN GLU ILE ALA GLU ILE SEQRES 8 C 219 ARG LYS ILE THR LYS GLN LEU LEU THR THR GLU ILE ALA SEQRES 9 C 219 LEU GLU GLN VAL GLN LEU ARG LEU GLU THR ILE THR GLU SEQRES 10 C 219 ILE GLY ASP ILE PHE THR SER LEU VAL PRO VAL ILE GLY SEQRES 11 C 219 VAL ILE ARG GLU LEU ARG ASN VAL MET LYS GLY VAL MET SEQRES 12 C 219 PRO GLU LEU SER ILE GLU LEU ALA ASP LEU GLU GLU GLY SEQRES 13 C 219 LEU GLN GLU VAL VAL LEU GLU ALA GLY GLU PHE THR GLY SEQRES 14 C 219 ALA ARG VAL ASP PHE ALA THR SER SER PRO GLU ALA ARG SEQRES 15 C 219 LYS ILE LEU ASP GLU ALA SER ALA VAL ALA GLU GLN ARG SEQRES 16 C 219 MET LYS GLU LYS PHE PRO SER LEU PRO SER PHE ALA THR SEQRES 17 C 219 SER VAL ASP GLN LYS THR ASN ALA ASN GLN LYS HELIX 1 AA1 THR A 18 SER A 29 1 12 HELIX 2 AA2 GLN A 30 SER A 75 1 46 HELIX 3 AA3 ASP A 77 THR A 116 1 40 HELIX 4 AA4 ASP A 120 MET A 143 1 24 HELIX 5 AA5 MET A 143 GLY A 165 1 23 HELIX 6 AA6 SER A 178 PHE A 200 1 23 HELIX 7 AA7 THR B 18 SER B 29 1 12 HELIX 8 AA8 GLN B 30 SER B 75 1 46 HELIX 9 AA9 ASP B 77 THR B 116 1 40 HELIX 10 AB1 ASP B 120 MET B 143 1 24 HELIX 11 AB2 MET B 143 GLY B 165 1 23 HELIX 12 AB3 SER B 178 PHE B 200 1 23 HELIX 13 AB4 THR C 18 SER C 29 1 12 HELIX 14 AB5 GLN C 30 SER C 75 1 46 HELIX 15 AB6 SER C 78 ILE C 118 1 41 HELIX 16 AB7 ASP C 120 MET C 143 1 24 HELIX 17 AB8 MET C 143 GLY C 165 1 23 HELIX 18 AB9 SER C 178 LYS C 199 1 22 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 224 0 0 18 0 0 0 6 4548 3 0 51 END