SMTL ID : 8t4m.1

Closed human HCN1 F186C S264C 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: 17 residues within 4Å: Chain A: I.503, V.522, M.530, L.532, F.538, G.539, E.540, I.541, C.542, R.549, T.550, A.551, V.553, R.590, R.593, I.594, V.633 9 PLIP interactions: 9 interactions with chain A Hydrogen bonds: A:G.539, A:E.540, A:E.540, A:C.542, A:T.550, A:A.551, A:R.590, A:R.593 Salt bridges: A:R.549 CMP.2: 17 residues within 4Å: Chain B: I.503, V.522, M.530, L.532, F.538, G.539, E.540, I.541, C.542, R.549, T.550, A.551, V.553, R.590, R.593, I.594, V.633 9 PLIP interactions: 9 interactions with chain B Hydrogen bonds: B:G.539, B:E.540, B:E.540, B:C.542, B:T.550, B:A.551, B:R.590, B:R.593 Salt bridges: B:R.549 CMP.3: 17 residues within 4Å: Chain C: I.503, V.522, M.530, L.532, F.538, G.539, E.540, I.541, C.542, R.549, T.550, A.551, V.553, R.590, R.593, I.594, V.633 9 PLIP interactions: 9 interactions with chain C Hydrogen bonds: C:G.539, C:E.540, C:E.540, C:C.542, C:T.550, C:A.551, C:R.590, C:R.593 Salt bridges: C:R.549 CMP.4: 17 residues within 4Å: Chain D: I.503, V.522, M.530, L.532, F.538, G.539, E.540, I.541, C.542, R.549, T.550, A.551, V.553, R.590, R.593, I.594, V.633 9 PLIP interactions: 9 interactions with chain D Hydrogen bonds: D:G.539, D:E.540, D:E.540, D:C.542, D:T.550, D:A.551, D:R.590, D:R.593 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

2024-06-12

Peptides

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

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
C

C
B

D
A

Membrane

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

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