SMTL ID : 8t4y.1

Human HCN1 F186C S264C C309A bound to cAMP, reconstituted in LMNG + SPL

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-tetramer

Ligands

4 x CMP: ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE(Non-covalent)

CMP.1: 12 residues within 4Å: Chain A: V.522, M.530, F.538, G.539, E.540, I.541, R.548, R.549, T.550, A.551, R.590, I.594 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:G.539, A:E.540, A:I.541, A:R.548, A:T.550, A:A.551 Salt bridges: A:R.549 CMP.2: 12 residues within 4Å: Chain B: V.522, M.530, F.538, G.539, E.540, I.541, R.548, R.549, T.550, A.551, R.590, I.594 7 PLIP interactions: 7 interactions with chain B Hydrogen bonds: B:G.539, B:E.540, B:I.541, B:R.548, B:T.550, B:A.551 Salt bridges: B:R.549 CMP.3: 12 residues within 4Å: Chain C: V.522, M.530, F.538, G.539, E.540, I.541, R.548, R.549, T.550, A.551, R.590, I.594 7 PLIP interactions: 7 interactions with chain C Hydrogen bonds: C:G.539, C:E.540, C:I.541, C:R.548, C:T.550, C:A.551 Salt bridges: C:R.549 CMP.4: 13 residues within 4Å: Chain D: V.522, M.530, F.538, G.539, E.540, I.541, R.548, R.549, T.550, A.551, V.553, R.590, I.594 7 PLIP interactions: 7 interactions with chain D Hydrogen bonds: D:G.539, D:E.540, D:I.541, D:R.548, D:T.550, D:A.551 Salt bridges: D:R.549

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Burtscher, V. et al., Structural basis for hyperpolarization-dependent opening of human HCN1 channel. Nat Commun (2024)

Release Date

2024-06-19

Peptides

Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
D

C
C

D
B

Membrane

We predict this structure to be a membrane protein.
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Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1