Cyclic nucleotide-gated channel alpha-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 140–686 Chain B; UniProt 140–686 Chain C; UniProt 140–686 Chain D; UniProt 140–686 | Not recorded | CLR CHOLESTEROL × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 28 PIO [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate × 4 K POTASSIUM ION × 5 | ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4;25 mM HEPES, 150 mM KCl, pH7.4 cryo-EM vitrification conditions:Cryogen ETHANE | Resolution 2.11 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 9ZQ0 | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 7LFT Cryo-EM structure of human Apo CNGA1 channel in K+/Ca2+ Deposited 2021-01-18 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Chain B
144–690(547 aa)
Chain C
144–690(547 aa)
Chain D
144–690(547 aa)
|
Not recorded | CLR CHOLESTEROL × 8 CPL 1-PALMITOYL-2-LINOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 24 K POTASSIUM ION × 3 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.60 Å |
| 7LFW Cryo-EM structure of human cGMP-bound open CNGA1 channel in K+/Ca2+ Deposited 2021-01-18 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Chain B
144–690(547 aa)
Chain C
144–690(547 aa)
Chain D
144–690(547 aa)
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 CA CALCIUM ION × 2 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.90 Å |
| 7LFX Cryo-EM structure of human cGMP-bound open CNGA1 channel in Na+/Ca2+ Deposited 2021-01-19 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Chain B
144–690(547 aa)
Chain C
144–690(547 aa)
Chain D
144–690(547 aa)
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 CA CALCIUM ION × 2 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.10 Å |
| 7LFY Cryo-EM structure of human cGMP-bound open CNGA1 channel in Na+ Deposited 2021-01-19 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Chain B
144–690(547 aa)
Chain C
144–690(547 aa)
Chain D
144–690(547 aa)
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 NA SODIUM ION × 3 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.60 Å |
| 7LG1 Cryo-EM structure of human cGMP-bound CNGA1_E365Q channel in Na+/Ca2+ Deposited 2021-01-19 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Chain B
144–690(547 aa)
Chain C
144–690(547 aa)
Chain D
144–690(547 aa)
|
Mutation:E365Q Mutation:E365Q Mutation:E365Q Mutation:E365Q | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 CA CALCIUM ION × 1 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.70 Å |
| 7RH9 Cryo-EM structure of human rod CNGA1/B1 channel in apo state Deposited 2021-07-16 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Fragment:UNP residues 144-690
Chain C
144–690(547 aa)
Fragment:UNP residues 144-690
Chain D
144–690(547 aa)
Fragment:UNP residues 144-690
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.61 Å |
| 7RHG Cryo-EM structure of human rod CNGA1/B1 channel in cAMP-bound state Deposited 2021-07-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Fragment:UNP residues 144-690
Chain C
144–690(547 aa)
Fragment:UNP residues 144-690
Chain D
144–690(547 aa)
Fragment:UNP residues 144-690
|
Not recorded | CMP ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.88 Å |
| 7RHH Cryo-EM structure of human rod CNGA1/B1 channel in cGMP-bound openI state Deposited 2021-07-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Fragment:UNP residues 144-690
Chain C
144–690(547 aa)
Fragment:UNP residues 144-690
Chain D
144–690(547 aa)
Fragment:UNP residues 144-690
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.31 Å |
| 7RHI Cryo-EM structure of human rod CNGA1/B1 channel in cGMP-bound openII state Deposited 2021-07-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Fragment:UNP residues 144-690
Chain C
144–690(547 aa)
Fragment:UNP residues 144-690
Chain D
144–690(547 aa)
Fragment:UNP residues 144-690
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.31 Å |
| 7RHJ Cryo-EM structure of human rod CNGA1/B1 channel in L-cis-Diltiazem-blocked open state Deposited 2021-07-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Fragment:UNP residues 144-690
Chain C
144–690(547 aa)
Fragment:UNP residues 144-690
Chain D
144–690(547 aa)
Fragment:UNP residues 144-690
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 5H0 (2R,3R)-5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate × 1 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.88 Å |
| 7RHK Cryo-EM structure of human rod CNGA1/B1 channel in L-cis-Diltiazem-trapped closed state Deposited 2021-07-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Fragment:UNP residues 144-690
Chain C
144–690(547 aa)
Fragment:UNP residues 144-690
Chain D
144–690(547 aa)
Fragment:UNP residues 144-690
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 5H0 (2R,3R)-5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate × 1 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.27 Å |
| 7RHL Cryo-EM structure of human rod Apo CNGA1/B1 channel with CLZ coiled coil Deposited 2021-07-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
144–690(547 aa)
Fragment:UNP residues 144-690
Chain C
144–690(547 aa)
Fragment:UNP residues 144-690
Chain D
144–690(547 aa)
Fragment:UNP residues 144-690
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.03 Å |
| 9ZPV CNGA1 channel closed state in nanodisc cGMP-free Deposited 2025-12-17 | Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
140–686(547 aa)
Chain B
140–686(547 aa)
Chain C
140–686(547 aa)
Chain D
140–686(547 aa)
|
Not recorded | CLR CHOLESTEROL × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 28 K POTASSIUM ION × 6 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.07 Å |
| 9ZPW CNGA1 channel intermediate state in nanodisc cGMP-bound Deposited 2025-12-17 | Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
140–686(547 aa)
Chain B
140–686(547 aa)
Chain C
140–686(547 aa)
Chain D
140–686(547 aa)
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 CLR CHOLESTEROL × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 28 K POTASSIUM ION × 6 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.47 Å |
| 9ZPX CNGA1 channel open state in nanodisc cGMP-bound Deposited 2025-12-17 | Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
140–686(547 aa)
Chain B
140–686(547 aa)
Chain C
140–686(547 aa)
Chain D
140–686(547 aa)
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 CLR CHOLESTEROL × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 20 K POTASSIUM ION × 2 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.64 Å |
| 9ZPY CNGA1 channel closed state in nanodisc with brain PIP2 cGMP-free Deposited 2025-12-17 | Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
140–686(547 aa)
Chain B
140–686(547 aa)
Chain C
140–686(547 aa)
Chain D
140–686(547 aa)
|
Not recorded | CLR CHOLESTEROL × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 28 K POTASSIUM ION × 5 PT5 [(2R)-1-octadecanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phospho ryl]oxy-propan-2-yl] (8Z)-icosa-5,8,11,14-tetraenoate × 2 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.48 Å |
| 9ZPZ CNGA1 channel intermediate state in nanodisc with brain PIP2 cGMP-bound Deposited 2025-12-17 | Different ligand/ion Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
140–686(547 aa)
Chain B
140–686(547 aa)
Chain C
140–686(547 aa)
Chain D
140–686(547 aa)
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 CLR CHOLESTEROL × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 28 PT5 [(2R)-1-octadecanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phospho ryl]oxy-propan-2-yl] (8Z)-icosa-5,8,11,14-tetraenoate × 2 K POTASSIUM ION × 5 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4;25 mM HEPES, 150 mM KCl, pH7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.64 Å |
| 9ZQ1 CNGA1 channel intermediate state in nanodisc with diC8-PIP2 cGMP-bound Deposited 2025-12-17 | Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 4 PDB declaration: tetrameric |
Chain A
140–686(547 aa)
Chain B
140–686(547 aa)
Chain C
140–686(547 aa)
Chain D
140–686(547 aa)
|
Not recorded | PCG CYCLIC GUANOSINE MONOPHOSPHATE × 4 CLR CHOLESTEROL × 4 PCW 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 28 PIO [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate × 4 K POTASSIUM ION × 5 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4;25 mM HEPES, 150 mM KCl, pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.22 Å |
18 other PDB entries and 18 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | CNGA1_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A; PDBConstruct 13–559; UniProt 140–686 Author chain B; PDBConstruct 13–559; UniProt 140–686 Author chain C; PDBConstruct 13–559; UniProt 140–686 Author chain D; PDBConstruct 13–559; UniProt 140–686 |