SMTL ID : 3u11.2 (1 other biounit)

Tetramerization dynamics of the C-terminus underlies isoform-specific cAMP-gating in HCN channels

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

homo-tetramer

Ligands

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

CMP.1: 16 residues within 4Å: Chain A: I.110, V.129, T.137, L.139, F.145, G.146, E.147, I.148, C.149, R.156, T.157, A.158, V.160, R.197, R.200, I.201 11 PLIP interactions: 11 interactions with chain A Hydrogen bonds: A:T.137, A:G.146, A:E.147, A:E.147, A:I.148, A:C.149, A:T.157, A:R.197, A:R.197, A:R.200 Salt bridges: A:R.156 CMP.2: 16 residues within 4Å: Chain B: I.110, V.129, T.137, L.139, F.145, G.146, E.147, I.148, C.149, R.156, T.157, A.158, V.160, R.197, R.200, I.201 11 PLIP interactions: 11 interactions with chain B Hydrogen bonds: B:T.137, B:G.146, B:E.147, B:E.147, B:I.148, B:C.149, B:T.157, B:R.197, B:R.197, B:R.200 Salt bridges: B:R.156 CMP.3: 16 residues within 4Å: Chain C: I.110, V.129, T.137, L.139, F.145, G.146, E.147, I.148, C.149, R.156, T.157, A.158, V.160, R.197, R.200, I.201 11 PLIP interactions: 11 interactions with chain C Hydrogen bonds: C:T.137, C:G.146, C:E.147, C:E.147, C:I.148, C:C.149, C:T.157, C:R.197, C:R.197, C:R.200 Salt bridges: C:R.156 CMP.4: 16 residues within 4Å: Chain D: I.110, V.129, T.137, L.139, F.145, G.146, E.147, I.148, C.149, R.156, T.157, A.158, V.160, R.197, R.200, I.201 11 PLIP interactions: 11 interactions with chain D Hydrogen bonds: D:T.137, D:G.146, D:E.147, D:E.147, D:I.148, D:C.149, D:T.157, D:R.197, D:R.197, D:R.200 Salt bridges: D:R.156

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lolicato, M. et al., Tetramerization dynamics of C-terminal domain underlies isoform-specific cAMP gating in hyperpolarization-activated cyclic nucleotide-gated channels. J.Biol.Chem. (2011)

Release Date

2011-10-26

Peptides

Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
B

C
B

D
B

Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4

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