Transient receptor potential cation channel subfamily A member 1
Homo sapiens
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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count | Chain A; UniProt 1–1119 Chain B; UniProt 1–1119 Chain C; UniProt 1–1119 Chain D; UniProt 1–1119 | Not recorded | No other associated polymer | ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE | Resolution 3.81 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 9M8N | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 3J9P Structure of the TRPA1 ion channel determined by electron cryo-microscopy Deposited 2015-02-14 | Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics | Assembly 1 Insufficient information Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
2–1119(1118 aa)
Fragment:SEE REMARK 999
Chain B
2–1119(1118 aa)
Fragment:SEE REMARK 999
Chain C
2–1119(1118 aa)
Fragment:SEE REMARK 999
Chain D
2–1119(1118 aa)
Fragment:SEE REMARK 999
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
20 mM HEPES, 150 mM NaCl, 1 mM DTT, 1 mM IP6;pH 8;20 mM HEPES, 150 mM NaCl, 1 mM DTT, 1 mM IP6
cryo-EM vitrification conditions
Blot for 7 seconds before plunging.;120 K;Cryogen ETHANE;Blot for 7 seconds before plunging into liquid ethane (FEI VITROBOT MARK I).
|
Resolution 4.24 Å |
| 6HC8 Factor Inhibiting HIF (FIH) in complex with zinc, NOG and TRPA1 (313-339) Deposited 2018-08-14 | 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 × 4 PDB declaration: tetrameric |
Chain E
313–339(27 aa)
|
Not recorded | ZN ZINC ION × 2 OGA N-OXALYLGLYCINE × 2 SO4 SULFATE ION × 2 GOL GLYCEROL × 6 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.5;293 K;0.1 M Hepes pH = 7.5,
1.6 M ammonium
sulfate, 6% PEG400
|
Resolution 1.90 Å R-free 0.189 |
| 6PQO Cryo-EM structure of the human TRPA1 ion channel in complex with the covalent agonist JT010 Deposited 2019-07-09 | Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics | Assembly 1 Other combination Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
2–1119(1118 aa)
Chain B
2–1119(1118 aa)
Chain C
2–1119(1118 aa)
Chain D
2–1119(1118 aa)
|
Not recorded | JT0 2-chloro-N-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-N-(3-methoxypropyl)acetamide × 4 LBN 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine × 8 6OU [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate × 16 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.88 Å |
| 6PQP Cryo-EM structure of the human TRPA1 ion channel in complex with the covalent agonist BITC Deposited 2019-07-09 | Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics | Assembly 1 Other combination Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
2–1119(1118 aa)
Chain B
2–1119(1118 aa)
Chain C
2–1119(1118 aa)
Chain D
2–1119(1118 aa)
|
Not recorded | 9BE N-benzylthioformamide × 4 6OU [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate × 20 LBN 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.06 Å |
| 6PQQ Cryo-EM structure of human TRPA1 C621S mutant in the apo state Deposited 2019-07-09 | Different construct Different mutation/modification Different ligand/ion Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
2–1119(1118 aa)
Chain B
2–1119(1118 aa)
Chain C
2–1119(1118 aa)
Chain D
2–1119(1118 aa)
|
Mutation:C621S Mutation:C621S Mutation:C621S Mutation:C621S | LBN 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine × 8 6OU [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate × 20 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.81 Å |
| 6V9V Structure of TRPA1 modified by Bodipy-iodoacetamide with bound calcium, LMNG Deposited 2019-12-16 | Different mutation/modification Different ligand/ion Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
1–1119(1119 aa)
Chain B
1–1119(1119 aa)
Chain C
1–1119(1119 aa)
Chain D
1–1119(1119 aa)
|
Mutation:D966E Mutation:D966E Mutation:D966E Mutation:D966E | QT4 ~{N}-[[2,2-bis(fluoranyl)-10,12-dimethyl-1,3-diaza-2$l^{4}-boratricyclo[7.3.0.0^{3,7}]dodeca-4,6,9,11-tetraen-4-yl]methyl]ethanamide × 4 CA CALCIUM ION × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.60 Å |
| 6V9W Structure of TRPA1 (ligand-free) with bound calcium, LMNG Deposited 2019-12-16 | Different mutation/modification Different ligand/ion Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
1–1119(1119 aa)
Chain B
1–1119(1119 aa)
Chain C
1–1119(1119 aa)
Chain D
1–1119(1119 aa)
|
Mutation:D966E Mutation:D966E Mutation:D966E Mutation:D966E | CA CALCIUM ION × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.10 Å |
| 6V9X Structure of TRPA1 modified by iodoacetamide, PMAL-C8 Deposited 2019-12-16 | Different mutation/modification Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
1–1119(1119 aa)
Chain B
1–1119(1119 aa)
Chain C
1–1119(1119 aa)
Chain D
1–1119(1119 aa)
|
Mutation:D966E Non-standard monomer:Yes (specific site not provided by mmCIF) Mutation:D966E Non-standard monomer:Yes (specific site not provided by mmCIF) Mutation:D966E Non-standard monomer:Yes (specific site not provided by mmCIF) Mutation:D966E Non-standard monomer:Yes (specific site not provided by mmCIF) | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.30 Å |
| 6V9Y Structure of TRPA1 bound with A-967079, PMAL-C8 Deposited 2019-12-16 | Different mutation/modification Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
1–1119(1119 aa)
Chain B
1–1119(1119 aa)
Chain C
1–1119(1119 aa)
Chain D
1–1119(1119 aa)
|
Mutation:D966E Mutation:D966E Mutation:D966E Mutation:D966E | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.60 Å |
| 6WJ5 Structure of human TRPA1 in complex with inhibitor GDC-0334 Deposited 2020-04-11 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
448–1078(631 aa)
Chain B
448–1078(631 aa)
Chain C
448–1078(631 aa)
Chain D
448–1078(631 aa)
|
Not recorded | LXY (4R,5S)-4-fluoro-1-[(4-fluorophenyl)sulfonyl]-5-methyl-N-({5-(trifluoromethyl)-2-[2-(trifluoromethyl)pyrimidin-5-yl]pyridin-4-yl}methyl)-L-prolinamide × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8.2
cryo-EM vitrification conditions
Cryogen ETHANE;2 x 4s blot time
|
Resolution 3.60 Å |
| 6X2J Structure of human TRPA1 in complex with agonist GNE551 Deposited 2020-05-20 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
448–1078(631 aa)
Chain B
448–1078(631 aa)
Chain C
448–1078(631 aa)
Chain D
448–1078(631 aa)
|
Not recorded | ULJ 5-amino-1-[(4-bromo-2-fluorophenyl)methyl]-N-(2,5-dimethoxyphenyl)-1H-1,2,3-triazole-4-carboxamide × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8.2
cryo-EM vitrification conditions
Cryogen ETHANE;Triple blot.
Put blot in vitroblot
Apply 3.5ul to grid, wait 30sec, blot manually
Apply 3.5ul to grid, wait 30sec, blot manually,
apply final 3.5ul, final blot by vitrobot (3.5s)
|
Resolution 3.00 Å |
| 7JUP Structure of human TRPA1 in complex with antagonist compound 21 Deposited 2020-08-20 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
448–1078(631 aa)
Chain B
448–1078(631 aa)
Chain C
448–1078(631 aa)
Chain D
448–1078(631 aa)
|
Not recorded | VKM 1-({3-[(3R,5R)-5-(4-fluorophenyl)oxolan-3-yl]-1,2,4-oxadiazol-5-yl}methyl)-7-methyl-1,7-dihydro-6H-purin-6-one × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8.2
cryo-EM vitrification conditions
Cryogen ETHANE;Triple blot.
Put blot in vitroblot
Apply 3.5ul to grid, wait 30sec, blot manually
Apply 3.5ul to grid, wait 30sec, blot manually,
apply final 3.5ul, final blot by vitrobot (3.5s)
|
Resolution 3.05 Å |
| 7OR0 Cryo-EM structure of the human TRPA1 ion channel in complex with the antagonist 3-60, conformation 2 Deposited 2021-06-04 | Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Other combination Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
1–1119(1119 aa)
Chain B
1–1119(1119 aa)
Chain C
1–1119(1119 aa)
Chain D
1–1119(1119 aa)
|
Not recorded | 0IG ~{N}-[4-[4-[(azanylidene-$l^{4}-azanylidene)amino]phenyl]-1,3-thiazol-2-yl]-2-[1,3-dimethyl-2,6-bis(oxidanylidene)purin-7-yl]ethanamide × 4 PC1 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 8 CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 IHP INOSITOL HEXAKISPHOSPHATE × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.5
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.64 Å |
| 7OR1 Cryo-EM structure of the human TRPA1 ion channel in complex with the antagonist 3-60, conformation 1 Deposited 2021-06-04 | Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Other combination Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
1–1119(1119 aa)
Chain B
1–1119(1119 aa)
Chain C
1–1119(1119 aa)
Chain D
1–1119(1119 aa)
|
Not recorded | 0IG ~{N}-[4-[4-[(azanylidene-$l^{4}-azanylidene)amino]phenyl]-1,3-thiazol-2-yl]-2-[1,3-dimethyl-2,6-bis(oxidanylidene)purin-7-yl]ethanamide × 4 PC1 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 8 CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 IHP INOSITOL HEXAKISPHOSPHATE × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.5
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.64 Å |
| 9M8S Cryo-EM structure of the human TRPA1 ion channel in ligand-free state. Deposited 2025-03-12 | Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
1–1119(1119 aa)
Chain B
1–1119(1119 aa)
Chain C
1–1119(1119 aa)
Chain D
1–1119(1119 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.10 Å |
| 9MOE Preclinical and clinical evaluation of a novel TRPA1 antagonist LY3526318 Deposited 2024-12-26 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
2–1119(1118 aa)
Chain B
2–1119(1118 aa)
Chain D
2–1119(1118 aa)
Chain E
2–1119(1118 aa)
|
Not recorded | A1BNO (2S)-2-{3-methyl-1-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl}-N-{6-[2-(trifluoromethyl)pyrimidin-5-yl]pyridin-2-yl}propanamide × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 8;20 mM HEPES, pH 8, 150 mM NaCl, 0.5 mM TCEP and 0.01% LMNG
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.70 Å |
16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | TRPA1_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A; PDBConstruct 1–1119; UniProt 1–1119 Author chain B; PDBConstruct 1–1119; UniProt 1–1119 Author chain C; PDBConstruct 1–1119; UniProt 1–1119 Author chain D; PDBConstruct 1–1119; UniProt 1–1119 |