HEADER MEMBRANE PROTEIN 18-SEP-25 9WUS TITLE CRYO-EM STRUCTURE OF THE PERIPLASMIC DOMAIN OF AAA PROTEASE FTSH COMPND MOL_ID: 1; COMPND 2 MOLECULE: ATP-DEPENDENT ZINC METALLOPROTEASE FTSH; COMPND 3 CHAIN: A, B, C, D, E, F; COMPND 4 SYNONYM: CELL DIVISION PROTEASE FTSH; COMPND 5 EC: 3.4.24.-; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: FTSH, HFLB, MRSC, STD, TOLZ, B3178, JW3145; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_VARIANT: C43 KEYWDS AAA+ PROTEASE, TRANSMEMBRANE DOMAIN FTSH, MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR B.V.KABASAKAL,G.GOC,S.YADAV,U.BORUCU,I.BERGER,C.SCHAFFITZEL REVDAT 1 13-MAY-26 9WUS 0 JRNL AUTH G.GOC,S.K.N.YADAV,G.ORRISS,U.BORUCU,I.BERGER,C.SCHAFFITZEL, JRNL AUTH 2 B.V.KABASAKAL JRNL TITL CRYO-EM STRUCTURE OF THE FTSH PERIPLASMIC DOMAIN REVEALS JRNL TITL 2 FUNCTIONAL DYNAMICS. JRNL REF ACS CHEM.BIOL. V. 21 844 2026 JRNL REFN ESSN 1554-8937 JRNL PMID 41944809 JRNL DOI 10.1021/ACSCHEMBIO.5C01025 REMARK 2 REMARK 2 RESOLUTION. 4.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : RELION, EPU, RELION, MOLREP, RELION, REMARK 3 RELION, PHENIX REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : 7WI3 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) : 4.900 REMARK 3 NUMBER OF PARTICLES : 9590 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 9WUS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 19-SEP-25. REMARK 100 THE DEPOSITION ID IS D_1300061697. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : PERIPLASMIC DOMAIN OF AAA REMARK 245 PROTEASE FTSH REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 0.35 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 : FEI TALOS ARCTICA REMARK 245 DETECTOR TYPE : GATAN K2 SUMMIT (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 800.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2000.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : OTHER REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 6130.00 REMARK 245 ILLUMINATION MODE : OTHER REMARK 245 NOMINAL MAGNIFICATION : 130000 REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : OTHER REMARK 245 ACCELERATION VOLTAGE (KV) : 200 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: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D, E, F 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 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 ASN A 52 88.05 -150.64 REMARK 500 LEU A 77 -53.61 -120.20 REMARK 500 ASN B 52 88.12 -150.67 REMARK 500 LEU B 77 -53.63 -120.12 REMARK 500 ASN C 52 88.06 -150.64 REMARK 500 LEU C 77 -53.63 -120.16 REMARK 500 ASN D 52 88.05 -150.68 REMARK 500 LEU D 77 -53.64 -120.13 REMARK 500 ASN E 52 88.09 -150.63 REMARK 500 LEU E 77 -53.61 -120.15 REMARK 500 ASN F 52 88.12 -150.68 REMARK 500 LEU F 77 -53.66 -120.20 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-66269 RELATED DB: EMDB REMARK 900 CRYO-EM STRUCTURE OF THE PERIPLASMIC DOMAIN OF AAA PROTEASE FTSH DBREF 9WUS A 32 96 UNP P0AAI3 FTSH_ECOLI 32 96 DBREF 9WUS B 32 96 UNP P0AAI3 FTSH_ECOLI 32 96 DBREF 9WUS C 32 96 UNP P0AAI3 FTSH_ECOLI 32 96 DBREF 9WUS D 32 96 UNP P0AAI3 FTSH_ECOLI 32 96 DBREF 9WUS E 32 96 UNP P0AAI3 FTSH_ECOLI 32 96 DBREF 9WUS F 32 96 UNP P0AAI3 FTSH_ECOLI 32 96 SEQRES 1 A 65 VAL ASP TYR SER THR PHE LEU GLN GLU VAL ASN ASN ASP SEQRES 2 A 65 GLN VAL ARG GLU ALA ARG ILE ASN GLY ARG GLU ILE ASN SEQRES 3 A 65 VAL THR LYS LYS ASP SER ASN ARG TYR THR THR TYR ILE SEQRES 4 A 65 PRO VAL GLN ASP PRO LYS LEU LEU ASP ASN LEU LEU THR SEQRES 5 A 65 LYS ASN VAL LYS VAL VAL GLY GLU PRO PRO GLU GLU PRO SEQRES 1 B 65 VAL ASP TYR SER THR PHE LEU GLN GLU VAL ASN ASN ASP SEQRES 2 B 65 GLN VAL ARG GLU ALA ARG ILE ASN GLY ARG GLU ILE ASN SEQRES 3 B 65 VAL THR LYS LYS ASP SER ASN ARG TYR THR THR TYR ILE SEQRES 4 B 65 PRO VAL GLN ASP PRO LYS LEU LEU ASP ASN LEU LEU THR SEQRES 5 B 65 LYS ASN VAL LYS VAL VAL GLY GLU PRO PRO GLU GLU PRO SEQRES 1 C 65 VAL ASP TYR SER THR PHE LEU GLN GLU VAL ASN ASN ASP SEQRES 2 C 65 GLN VAL ARG GLU ALA ARG ILE ASN GLY ARG GLU ILE ASN SEQRES 3 C 65 VAL THR LYS LYS ASP SER ASN ARG TYR THR THR TYR ILE SEQRES 4 C 65 PRO VAL GLN ASP PRO LYS LEU LEU ASP ASN LEU LEU THR SEQRES 5 C 65 LYS ASN VAL LYS VAL VAL GLY GLU PRO PRO GLU GLU PRO SEQRES 1 D 65 VAL ASP TYR SER THR PHE LEU GLN GLU VAL ASN ASN ASP SEQRES 2 D 65 GLN VAL ARG GLU ALA ARG ILE ASN GLY ARG GLU ILE ASN SEQRES 3 D 65 VAL THR LYS LYS ASP SER ASN ARG TYR THR THR TYR ILE SEQRES 4 D 65 PRO VAL GLN ASP PRO LYS LEU LEU ASP ASN LEU LEU THR SEQRES 5 D 65 LYS ASN VAL LYS VAL VAL GLY GLU PRO PRO GLU GLU PRO SEQRES 1 E 65 VAL ASP TYR SER THR PHE LEU GLN GLU VAL ASN ASN ASP SEQRES 2 E 65 GLN VAL ARG GLU ALA ARG ILE ASN GLY ARG GLU ILE ASN SEQRES 3 E 65 VAL THR LYS LYS ASP SER ASN ARG TYR THR THR TYR ILE SEQRES 4 E 65 PRO VAL GLN ASP PRO LYS LEU LEU ASP ASN LEU LEU THR SEQRES 5 E 65 LYS ASN VAL LYS VAL VAL GLY GLU PRO PRO GLU GLU PRO SEQRES 1 F 65 VAL ASP TYR SER THR PHE LEU GLN GLU VAL ASN ASN ASP SEQRES 2 F 65 GLN VAL ARG GLU ALA ARG ILE ASN GLY ARG GLU ILE ASN SEQRES 3 F 65 VAL THR LYS LYS ASP SER ASN ARG TYR THR THR TYR ILE SEQRES 4 F 65 PRO VAL GLN ASP PRO LYS LEU LEU ASP ASN LEU LEU THR SEQRES 5 F 65 LYS ASN VAL LYS VAL VAL GLY GLU PRO PRO GLU GLU PRO HELIX 1 AA1 ASP A 33 ASN A 42 1 10 HELIX 2 AA2 LEU A 77 THR A 83 1 7 HELIX 3 AA3 ASP B 33 ASN B 42 1 10 HELIX 4 AA4 LEU B 77 THR B 83 1 7 HELIX 5 AA5 ASP C 33 ASN C 42 1 10 HELIX 6 AA6 LEU C 77 THR C 83 1 7 HELIX 7 AA7 ASP D 33 ASN D 42 1 10 HELIX 8 AA8 LEU D 77 THR D 83 1 7 HELIX 9 AA9 ASP E 33 ASN E 42 1 10 HELIX 10 AB1 LEU E 77 THR E 83 1 7 HELIX 11 AB2 ASP F 33 ASN F 42 1 10 HELIX 12 AB3 LEU F 77 THR F 83 1 7 SHEET 1 AA1 4 ARG A 65 TYR A 69 0 SHEET 2 AA1 4 GLU A 55 LYS A 60 -1 N ILE A 56 O THR A 68 SHEET 3 AA1 4 VAL A 46 ASN A 52 -1 N ARG A 47 O THR A 59 SHEET 4 AA1 4 LYS A 87 GLY A 90 1 O VAL A 89 N ILE A 51 SHEET 1 AA2 4 ARG B 65 TYR B 69 0 SHEET 2 AA2 4 GLU B 55 LYS B 60 -1 N ILE B 56 O THR B 68 SHEET 3 AA2 4 VAL B 46 ASN B 52 -1 N ARG B 47 O THR B 59 SHEET 4 AA2 4 LYS B 87 GLY B 90 1 O VAL B 89 N ILE B 51 SHEET 1 AA3 4 ARG C 65 TYR C 69 0 SHEET 2 AA3 4 GLU C 55 LYS C 60 -1 N ILE C 56 O THR C 68 SHEET 3 AA3 4 VAL C 46 ASN C 52 -1 N ARG C 47 O THR C 59 SHEET 4 AA3 4 LYS C 87 GLY C 90 1 O VAL C 89 N ILE C 51 SHEET 1 AA4 4 ARG D 65 TYR D 69 0 SHEET 2 AA4 4 GLU D 55 LYS D 60 -1 N ILE D 56 O THR D 68 SHEET 3 AA4 4 VAL D 46 ASN D 52 -1 N ARG D 47 O THR D 59 SHEET 4 AA4 4 LYS D 87 GLY D 90 1 O VAL D 89 N ILE D 51 SHEET 1 AA5 4 ARG E 65 TYR E 69 0 SHEET 2 AA5 4 GLU E 55 LYS E 60 -1 N ILE E 56 O THR E 68 SHEET 3 AA5 4 VAL E 46 ASN E 52 -1 N ARG E 47 O THR E 59 SHEET 4 AA5 4 LYS E 87 GLY E 90 1 O VAL E 89 N ILE E 51 SHEET 1 AA6 4 ARG F 65 TYR F 69 0 SHEET 2 AA6 4 GLU F 55 LYS F 60 -1 N ILE F 56 O THR F 68 SHEET 3 AA6 4 VAL F 46 ASN F 52 -1 N ARG F 47 O THR F 59 SHEET 4 AA6 4 LYS F 87 GLY F 90 1 O VAL F 89 N ILE F 51 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 130 0 0 12 24 0 0 6 3168 6 0 30 END