HEADER MEMBRANE PROTEIN 02-DEC-25 9TGS TITLE CRYO-EM STRUCTURE OF TAMA COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRANSLOCATION AND ASSEMBLY MODULE SUBUNIT TAMA; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: AUTOTRANSPORTER ASSEMBLY FACTOR TAMA; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: TAMA, YFTM, YTFM, B4220, JW4179; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS ESCHERICHIA COLI K-12, MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR H.DONG,X.TANG,Q.LUO,Z.ZERANG REVDAT 1 11-NOV-26 9TGS 0 JRNL AUTH Q.LUO,X.DONG,Z.ZERANG,Y.CHEN,X.ZHU,L.YANG,Z.ZHANG,J.ZHANG, JRNL AUTH 2 X.LI,H.CHEN,B.YING,S.CHANG,J.ZHOU,H.DONG,X.TANG JRNL TITL MECHANISTIC INSIGHTS INTO TAM-MEDIATED OMP ASSEMBLY IN JRNL TITL 2 GRAM-NEGATIVE BACTERIA. JRNL REF CELL REP V. 45 17733 2026 JRNL REFN ESSN 2211-1247 JRNL PMID 42507553 JRNL DOI 10.1016/J.CELREP.2026.117733 REMARK 2 REMARK 2 RESOLUTION. 7.75 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : CRYOSPARC, PHENIX, CRYOSPARC 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 : NULL 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) : 7.750 REMARK 3 NUMBER OF PARTICLES : 49816 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 9TGS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 04-DEC-25. REMARK 100 THE DEPOSITION ID IS D_1292152673. 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 : CELL REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : TAMA 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 : 7.80 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) : 1500.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2500.00 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) : 5000.00 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 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 ARG A 2 REMARK 465 TYR A 3 REMARK 465 ILE A 4 REMARK 465 ARG A 5 REMARK 465 GLN A 6 REMARK 465 LEU A 7 REMARK 465 CYS A 8 REMARK 465 CYS A 9 REMARK 465 VAL A 10 REMARK 465 SER A 11 REMARK 465 LEU A 12 REMARK 465 LEU A 13 REMARK 465 CYS A 14 REMARK 465 LEU A 15 REMARK 465 SER A 16 REMARK 465 GLY A 17 REMARK 465 SER A 18 REMARK 465 ALA A 19 REMARK 465 VAL A 20 REMARK 465 ALA A 21 REMARK 465 ALA A 22 REMARK 465 ASN A 23 REMARK 465 VAL A 24 REMARK 465 ARG A 84 REMARK 465 PRO A 85 REMARK 465 PRO A 86 REMARK 465 PRO A 87 REMARK 465 LYS A 88 REMARK 465 LYS A 89 REMARK 465 GLY A 90 REMARK 465 ARG A 91 REMARK 465 GLN A 92 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OG1 THR A 119 OH TYR A 189 2.06 REMARK 500 OG SER A 238 N SER A 261 2.15 REMARK 500 O PHE A 159 NH1 ARG A 249 2.16 REMARK 500 N TYR A 488 O ASP A 492 2.17 REMARK 500 REMARK 500 REMARK: NULL 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 THR A 164 21.77 -147.47 REMARK 500 ALA A 166 118.75 -161.71 REMARK 500 TYR A 189 45.39 -158.29 REMARK 500 PRO A 211 40.59 -91.67 REMARK 500 GLU A 217 -148.08 59.44 REMARK 500 THR A 264 88.61 -69.57 REMARK 500 TYR A 294 0.49 -67.16 REMARK 500 LEU A 324 -13.69 -141.62 REMARK 500 ASP A 441 -99.67 54.59 REMARK 500 LYS A 494 -62.78 -91.15 REMARK 500 GLU A 564 -167.10 -79.41 REMARK 500 LEU A 567 39.32 -140.49 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 GLY A 186 -13.29 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-55910 RELATED DB: EMDB REMARK 900 CRYO-EM STRUCTURE OF TAMA DBREF 9TGS A 1 577 UNP P0ADE4 TAMA_ECOLI 1 577 SEQRES 1 A 577 MET ARG TYR ILE ARG GLN LEU CYS CYS VAL SER LEU LEU SEQRES 2 A 577 CYS LEU SER GLY SER ALA VAL ALA ALA ASN VAL ARG LEU SEQRES 3 A 577 GLN VAL GLU GLY LEU SER GLY GLN LEU GLU LYS ASN VAL SEQRES 4 A 577 ARG ALA GLN LEU SER THR ILE GLU SER ASP GLU VAL THR SEQRES 5 A 577 PRO ASP ARG ARG PHE ARG ALA ARG VAL ASP ASP ALA ILE SEQRES 6 A 577 ARG GLU GLY LEU LYS ALA LEU GLY TYR TYR GLN PRO THR SEQRES 7 A 577 ILE GLU PHE ASP LEU ARG PRO PRO PRO LYS LYS GLY ARG SEQRES 8 A 577 GLN VAL LEU ILE ALA LYS VAL THR PRO GLY VAL PRO VAL SEQRES 9 A 577 LEU ILE GLY GLY THR ASP VAL VAL LEU ARG GLY GLY ALA SEQRES 10 A 577 ARG THR ASP LYS ASP TYR LEU LYS LEU LEU ASP THR ARG SEQRES 11 A 577 PRO ALA ILE GLY THR VAL LEU ASN GLN GLY ASP TYR GLU SEQRES 12 A 577 ASN PHE LYS LYS SER LEU THR SER ILE ALA LEU ARG LYS SEQRES 13 A 577 GLY TYR PHE ASP SER GLU PHE THR LYS ALA GLN LEU GLY SEQRES 14 A 577 ILE ALA LEU GLY LEU HIS LYS ALA PHE TRP ASP ILE ASP SEQRES 15 A 577 TYR ASN SER GLY GLU ARG TYR ARG PHE GLY HIS VAL THR SEQRES 16 A 577 PHE GLU GLY SER GLN ILE ARG ASP GLU TYR LEU GLN ASN SEQRES 17 A 577 LEU VAL PRO PHE LYS GLU GLY ASP GLU TYR GLU SER LYS SEQRES 18 A 577 ASP LEU ALA GLU LEU ASN ARG ARG LEU SER ALA THR GLY SEQRES 19 A 577 TRP PHE ASN SER VAL VAL VAL ALA PRO GLN PHE ASP LYS SEQRES 20 A 577 ALA ARG GLU THR LYS VAL LEU PRO LEU THR GLY VAL VAL SEQRES 21 A 577 SER PRO ARG THR GLU ASN THR ILE GLU THR GLY VAL GLY SEQRES 22 A 577 TYR SER THR ASP VAL GLY PRO ARG VAL LYS ALA THR TRP SEQRES 23 A 577 LYS LYS PRO TRP MET ASN SER TYR GLY HIS SER LEU THR SEQRES 24 A 577 THR SER THR SER ILE SER ALA PRO GLU GLN THR LEU ASP SEQRES 25 A 577 PHE SER TYR LYS MET PRO LEU LEU LYS ASN PRO LEU GLU SEQRES 26 A 577 GLN TYR TYR LEU VAL GLN GLY GLY PHE LYS ARG THR ASP SEQRES 27 A 577 LEU ASN ASP THR GLU SER ASP SER THR THR LEU VAL ALA SEQRES 28 A 577 SER ARG TYR TRP ASP LEU SER SER GLY TRP GLN ARG ALA SEQRES 29 A 577 ILE ASN LEU ARG TRP SER LEU ASP HIS PHE THR GLN GLY SEQRES 30 A 577 GLU ILE THR ASN THR THR MET LEU PHE TYR PRO GLY VAL SEQRES 31 A 577 MET ILE SER ARG THR ARG SER ARG GLY GLY LEU MET PRO SEQRES 32 A 577 THR TRP GLY ASP SER GLN ARG TYR SER ILE ASP TYR SER SEQRES 33 A 577 ASN THR ALA TRP GLY SER ASP VAL ASP PHE SER VAL PHE SEQRES 34 A 577 GLN ALA GLN ASN VAL TRP ILE ARG THR LEU TYR ASP ARG SEQRES 35 A 577 HIS ARG PHE VAL THR ARG GLY THR LEU GLY TRP ILE GLU SEQRES 36 A 577 THR GLY ASP PHE ASP LYS VAL PRO PRO ASP LEU ARG PHE SEQRES 37 A 577 PHE ALA GLY GLY ASP ARG SER ILE ARG GLY TYR LYS TYR SEQRES 38 A 577 LYS SER ILE ALA PRO LYS TYR ALA ASN GLY ASP LEU LYS SEQRES 39 A 577 GLY ALA SER LYS LEU ILE THR GLY SER LEU GLU TYR GLN SEQRES 40 A 577 TYR ASN VAL THR GLY LYS TRP TRP GLY ALA VAL PHE VAL SEQRES 41 A 577 ASP SER GLY GLU ALA VAL SER ASP ILE ARG ARG SER ASP SEQRES 42 A 577 PHE LYS THR GLY THR GLY VAL GLY VAL ARG TRP GLU SER SEQRES 43 A 577 PRO VAL GLY PRO ILE LYS LEU ASP PHE ALA VAL PRO VAL SEQRES 44 A 577 ALA ASP LYS ASP GLU HIS GLY LEU GLN PHE TYR ILE GLY SEQRES 45 A 577 LEU GLY PRO GLU LEU HELIX 1 AA1 SER A 32 SER A 44 1 13 HELIX 2 AA2 PHE A 57 LEU A 72 1 16 HELIX 3 AA3 ARG A 114 ASP A 120 1 7 HELIX 4 AA4 ASP A 120 ASP A 128 1 9 HELIX 5 AA5 ASN A 138 GLY A 157 1 20 HELIX 6 AA6 ARG A 202 LEU A 209 1 8 HELIX 7 AA7 SER A 220 THR A 233 1 14 HELIX 8 AA8 GLN A 244 LYS A 252 1 9 HELIX 9 AA9 ASN A 417 GLY A 421 5 5 HELIX 10 AB1 PRO A 463 ARG A 467 5 5 HELIX 11 AB2 GLY A 471 ILE A 476 1 6 SHEET 1 AA1 3 GLN A 27 GLU A 29 0 SHEET 2 AA1 3 ILE A 95 THR A 99 1 O ALA A 96 N GLN A 27 SHEET 3 AA1 3 THR A 78 ASP A 82 -1 N GLU A 80 O LYS A 97 SHEET 1 AA2 3 LEU A 105 ILE A 106 0 SHEET 2 AA2 3 LYS A 176 ASN A 184 1 O ALA A 177 N LEU A 105 SHEET 3 AA2 3 VAL A 112 LEU A 113 1 N VAL A 112 O ILE A 181 SHEET 1 AA3 3 LEU A 105 ILE A 106 0 SHEET 2 AA3 3 LYS A 176 ASN A 184 1 O ALA A 177 N LEU A 105 SHEET 3 AA3 3 GLU A 162 ILE A 170 -1 N GLU A 162 O ASN A 184 SHEET 1 AA4 3 HIS A 193 GLU A 197 0 SHEET 2 AA4 3 PRO A 255 VAL A 259 1 O LEU A 256 N HIS A 193 SHEET 3 AA4 3 VAL A 240 PRO A 243 -1 N ALA A 242 O THR A 257 SHEET 1 AA517 GLY A 271 SER A 275 0 SHEET 2 AA517 ARG A 281 ASN A 292 -1 O LYS A 283 N GLY A 271 SHEET 3 AA517 HIS A 296 SER A 305 -1 O THR A 300 N TRP A 286 SHEET 4 AA517 GLU A 308 PRO A 318 -1 O GLU A 308 N SER A 305 SHEET 5 AA517 GLN A 326 LEU A 339 -1 O TYR A 328 N MET A 317 SHEET 6 AA517 THR A 342 ASP A 356 -1 O SER A 352 N LEU A 329 SHEET 7 AA517 TRP A 361 GLN A 376 -1 O ARG A 363 N TRP A 355 SHEET 8 AA517 ILE A 379 ARG A 396 -1 O THR A 383 N ASP A 372 SHEET 9 AA517 GLY A 406 SER A 416 -1 O TYR A 411 N ILE A 392 SHEET 10 AA517 PHE A 426 LEU A 439 -1 O GLN A 432 N ARG A 410 SHEET 11 AA517 HIS A 443 THR A 456 -1 O TRP A 453 N PHE A 429 SHEET 12 AA517 LYS A 498 VAL A 510 -1 O GLN A 507 N ARG A 444 SHEET 13 AA517 TRP A 514 GLU A 524 -1 O GLY A 516 N TYR A 508 SHEET 14 AA517 LYS A 535 TRP A 544 -1 O GLY A 537 N ASP A 521 SHEET 15 AA517 ILE A 551 PRO A 558 -1 O ILE A 551 N TRP A 544 SHEET 16 AA517 PHE A 569 GLY A 572 -1 O TYR A 570 N ASP A 554 SHEET 17 AA517 GLY A 271 SER A 275 -1 N TYR A 274 O ILE A 571 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 195 0 0 11 29 0 0 6 4333 1 0 45 END