Type-1 fimbrial protein, A chain
Escherichia coli J96
State in the Current Structure
| Assembly | Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Associated Components | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|
| 1 | Protein homooligomer Homooligomer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count | Chain A; UniProt 24–182 Chain B; UniProt 24–182 Chain C; UniProt 24–182 Chain D; UniProt 24–182 Chain E; UniProt 24–182 Chain F; UniProt 24–182 | Not recorded | No other associated polymer | ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE | Resolution 4.20 Å |
Other States of the Same Protein in the Database
Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.
| Other PDB | Difference from Current Entry 5OH0 | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 2JTY Self-complemented variant of FimA, the main subunit of type 1 pilus Deposited 2007-08-09 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
24–182(159 aa)
Fragment:Fusion protein of Type-1 fimbrial protein and type-1 fimbrial protein
Chain A
24–42(19 aa)
Fragment:Fusion protein of Type-1 fimbrial protein and type-1 fimbrial protein
|
Not recorded | No recorded non-water small molecule |
SOLUTION NMR
NMR measurement conditions
pH 7;298 K;Ionic strength (raw mmCIF value) 18;Pressure ambient
NMR sample composition
1.7 mM [U-98% 13C; U-98% 15N] FimA, 50 M H2O, 5 M D2O, 95% H2O/5% D2O | 95% H2O/5% D2O
|
Resolution not provided |
| 2M5G Solution structure of FimA wt Deposited 2013-02-24 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
SOLUTION NMR
NMR measurement conditions
pH 7;298 K;Ionic strength (raw mmCIF value) 0.08;Pressure ambient
NMR sample composition
2 mM [U-99% 13C; U-99% 15N] FimA-1, 90% H2O/10% D2O | 90% H2O/10% D2O
|
Resolution not provided |
| 3SQB Structure of the major type 1 pilus subunit FimA bound to the FimC chaperone Deposited 2011-07-05 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain B
37–182(146 aa)
Fragment:UNP residues 37-182
|
Not recorded | PEG DI(HYDROXYETHYL)ETHER × 3 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 5.5;277 K;0.1 M sodium acetate, 0.2 M magnesium chloride, 13% PEG 4000, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 3.20 Å R-free 0.300 |
| 3SQB Structure of the major type 1 pilus subunit FimA bound to the FimC chaperone Deposited 2011-07-05 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain D
37–182(146 aa)
Fragment:UNP residues 37-182
|
Not recorded | EDO 1,2-ETHANEDIOL × 2 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 5.5;277 K;0.1 M sodium acetate, 0.2 M magnesium chloride, 13% PEG 4000, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 3.20 Å R-free 0.300 |
| 3SQB Structure of the major type 1 pilus subunit FimA bound to the FimC chaperone Deposited 2011-07-05 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 3 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain F
37–182(146 aa)
Fragment:UNP residues 37-182
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 5.5;277 K;0.1 M sodium acetate, 0.2 M magnesium chloride, 13% PEG 4000, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 3.20 Å R-free 0.300 |
| 3SQB Structure of the major type 1 pilus subunit FimA bound to the FimC chaperone Deposited 2011-07-05 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 4 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain H
37–182(146 aa)
Fragment:UNP residues 37-182
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 5.5;277 K;0.1 M sodium acetate, 0.2 M magnesium chloride, 13% PEG 4000, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 3.20 Å R-free 0.300 |
| 4DWH Structure of the major type 1 pilus subunit FIMA bound to the FIMC (2.5 A resolution) Deposited 2012-02-24 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain B
41–182(142 aa)
|
Not recorded | PEG DI(HYDROXYETHYL)ETHER × 7 PG4 TETRAETHYLENE GLYCOL × 1 PO4 PHOSPHATE ION × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;293 K;40% (v/v) PEG 400
0.1 M phosphate/citrate pH 4.2
, VAPOR DIFFUSION, SITTING DROP, temperature 293K
|
Resolution 2.50 Å R-free 0.294 |
| 4DWH Structure of the major type 1 pilus subunit FIMA bound to the FIMC (2.5 A resolution) Deposited 2012-02-24 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain D
41–182(142 aa)
|
Not recorded | PEG DI(HYDROXYETHYL)ETHER × 3 PG4 TETRAETHYLENE GLYCOL × 1 PGE TRIETHYLENE GLYCOL × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;293 K;40% (v/v) PEG 400
0.1 M phosphate/citrate pH 4.2
, VAPOR DIFFUSION, SITTING DROP, temperature 293K
|
Resolution 2.50 Å R-free 0.294 |
| 5NKT FimA wt from E. coli Deposited 2017-04-03 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
24–182(159 aa)
|
Not recorded | SO4 SULFATE ION × 4 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 2.6;277 K;0.1 M Sodium Malonate, pH 2.6,
45% ammonium sulphate,
23 mg/ml of protein 1:1 mixture with reservoir
|
Resolution 1.50 Å R-free 0.188 |
| 6C53 Cryo-EM structure of the Type 1 pilus rod Deposited 2018-01-13 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions | Assembly 1 Protein homooligomer Homooligomer;Protein × 11 PDB declaration: undecameric |
Chain A
24–182(159 aa)
Chain B
24–182(159 aa)
Chain C
24–182(159 aa)
Chain D
24–182(159 aa)
Chain E
24–182(159 aa)
Chain F
24–182(159 aa)
Chain G
24–182(159 aa)
Chain H
24–182(159 aa)
Chain I
24–182(159 aa)
Chain J
24–182(159 aa)
Chain K
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 4.20 Å |
| 6R74 N-terminally reversed variant of FimA E. coli Deposited 2019-03-28 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
42–182(141 aa)
|
Not recorded | SO4 SULFATE ION × 5 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 3.1;298 K;45% NH4SO2 and 0.1M Sodium Malonate buffer pH 3.1
|
Resolution 1.81 Å R-free 0.219 |
| 6SWH Crystal structure of the ternary complex between the type 1 pilus proteins FimC, FimI and FimA from E. coli Deposited 2019-09-20 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain C
37–182(146 aa)
|
Not recorded | PEG DI(HYDROXYETHYL)ETHER × 1 EDO 1,2-ETHANEDIOL × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;293 K;0.8 M sodium formate,
100 mM Tris/acetic acid pH 8.5,
16% PEG 4000 (w/v)
|
Resolution 2.80 Å R-free 0.207 |
| 6SWH Crystal structure of the ternary complex between the type 1 pilus proteins FimC, FimI and FimA from E. coli Deposited 2019-09-20 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain F
37–182(146 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;293 K;0.8 M sodium formate,
100 mM Tris/acetic acid pH 8.5,
16% PEG 4000 (w/v)
|
Resolution 2.80 Å R-free 0.207 |
| 6Y7S 2.85 A cryo-EM structure of the in vivo assembled type 1 pilus rod Deposited 2020-03-02 | Different construct Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 6 PDB declaration: hexameric |
Chain A
1–182(182 aa)
Chain B
1–182(182 aa)
Chain C
1–182(182 aa)
Chain D
1–182(182 aa)
Chain E
1–182(182 aa)
Chain F
1–182(182 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7;in ddH2O.
cryo-EM vitrification conditions
Cryogen ETHANE;3 ul sample, 30 s wait time, 0.5 s drain time, 6 s blotting
|
Resolution 2.85 Å R-free 0.275 |
| 8PSV 2.7 A cryo-EM structure of in vitro assembled type 1 pilus rod Deposited 2023-07-13 | Different construct Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 6 PDB declaration: hexameric |
Chain A
1–182(182 aa)
Chain B
1–182(182 aa)
Chain C
1–182(182 aa)
Chain D
1–182(182 aa)
Chain E
1–182(182 aa)
Chain F
1–182(182 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7;in ddH2O.
cryo-EM vitrification conditions
Cryogen ETHANE;3 ul sample, 30 s wait time, 0.5 s drain time, 6 s blotting
|
Resolution 2.70 Å |
| 8PTU 2.5 A cryo-EM structure of the in vitro FimD-catalyzed assembly of type 1 pilus rod Deposited 2023-07-14 | Different construct Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 6 PDB declaration: hexameric |
Chain A
1–182(182 aa)
Chain B
1–182(182 aa)
Chain C
1–182(182 aa)
Chain D
1–182(182 aa)
Chain E
1–182(182 aa)
Chain F
1–182(182 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7;in ddH2O.
cryo-EM vitrification conditions
Cryogen ETHANE;3 ul sample, 30 s wait time, 0.5 s drain time, 6 s blotting
|
Resolution 2.52 Å |
| 9FTT Cryo-EM structure of the type 1 pilus rod as part of the FimA-bound usher complex (FimDHGFAnC) Deposited 2024-06-25 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 10 PDB declaration: decameric |
Chain B
24–182(159 aa)
Chain C
24–182(159 aa)
Chain D
24–182(159 aa)
Chain E
24–182(159 aa)
Chain F
24–182(159 aa)
Chain G
24–182(159 aa)
Chain H
24–182(159 aa)
Chain I
24–182(159 aa)
Chain J
24–182(159 aa)
Chain K
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE-PROPANE
|
Resolution 3.60 Å |
| 9FW9 Cryo-EM structure of the type 1 pilus assembly platform as part of the FimA-bound chaperone-usher pilus complex (FimDHGFAnC - body 2) Deposited 2024-06-28 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
24–182(159 aa)
Chain B
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE-PROPANE
|
Resolution 3.90 Å |
| 9FWB Cryo-EM structure of the type 1 pilus assembly platform as part of the FimA-bound chaperone-usher pilus complex (Local refinement including FimD, FimC, FimAn and FimAn-1) Deposited 2024-06-28 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
24–182(159 aa)
Chain B
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE-PROPANE
|
Resolution 3.50 Å |
| 9FWZ Cryo-EM structure of the type 1 pilus assembly platform as part of the FimA-bound chaperone-usher pilus complex (Local refinement including FimD, FimC, FimAn, FimAn-1 and FimAn-2) Deposited 2024-07-01 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 5 PDB declaration: pentameric |
Chain A
24–182(159 aa)
Chain B
24–182(159 aa)
Chain E
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE-PROPANE
|
Resolution 3.60 Å |
| 9FX0 Cryo-EM structure of the type 1 pilus tip-to-rod transition Deposited 2024-07-01 | Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 7 PDB declaration: heptameric |
Chain A
24–182(159 aa)
Chain B
24–182(159 aa)
Chain C
24–182(159 aa)
Chain D
24–182(159 aa)
Chain E
24–182(159 aa)
Chain G
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE-PROPANE
|
Resolution 3.10 Å |
| 9FXA Cryo-EM structure of the type 1 pilus rod as part of the FimI-bound usher complex (FimDHGFAnIC - body 1) Deposited 2024-07-01 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 10 PDB declaration: decameric |
Chain B
24–182(159 aa)
Chain C
24–182(159 aa)
Chain D
24–182(159 aa)
Chain E
24–182(159 aa)
Chain F
24–182(159 aa)
Chain G
24–182(159 aa)
Chain H
24–182(159 aa)
Chain I
24–182(159 aa)
Chain J
24–182(159 aa)
Chain K
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE-PROPANE
|
Resolution 4.00 Å |
| 9FXB Cryo-EM structure of the type 1 pilus assembly platform as part of the FimI-bound chaperone-usher pilus complex (FimDHGFAnIC - body 2) Deposited 2024-07-01 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE-PROPANE
|
Resolution 4.30 Å |
| 9VKV Cryo-EM structure of the type I pilus from Escherichia Coli and the surrounding water network Deposited 2025-06-24 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 15 PDB declaration: pentadecameric |
Chain A
24–182(159 aa)
Chain B
24–182(159 aa)
Chain C
24–182(159 aa)
Chain D
24–182(159 aa)
Chain E
24–182(159 aa)
Chain F
24–182(159 aa)
Chain G
24–182(159 aa)
Chain H
24–182(159 aa)
Chain I
24–182(159 aa)
Chain J
24–182(159 aa)
Chain K
24–182(159 aa)
Chain L
24–182(159 aa)
Chain M
24–182(159 aa)
Chain N
24–182(159 aa)
Chain O
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.5
cryo-EM vitrification conditions
Cryogen NITROGEN
|
Resolution 2.09 Å |
| 9X67 Cryo-EM structure of the type I pilus from Escherichia Coli and the surrounding water network Deposited 2025-10-15 | Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 15 PDB declaration: 15-meric |
Chain A
24–182(159 aa)
Chain B
24–182(159 aa)
Chain C
24–182(159 aa)
Chain D
24–182(159 aa)
Chain E
24–182(159 aa)
Chain F
24–182(159 aa)
Chain G
24–182(159 aa)
Chain H
24–182(159 aa)
Chain I
24–182(159 aa)
Chain J
24–182(159 aa)
Chain K
24–182(159 aa)
Chain L
24–182(159 aa)
Chain M
24–182(159 aa)
Chain N
24–182(159 aa)
Chain O
24–182(159 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.5
cryo-EM vitrification conditions
Cryogen NITROGEN
|
Resolution 1.85 Å |
20 other PDB entries and 25 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | FIMA1_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A; PDBConstruct 1–159; UniProt 24–182 Author chain B; PDBConstruct 1–159; UniProt 24–182 Author chain C; PDBConstruct 1–159; UniProt 24–182 Author chain D; PDBConstruct 1–159; UniProt 24–182 Author chain E; PDBConstruct 1–159; UniProt 24–182 Author chain F; PDBConstruct 1–159; UniProt 24–182 |