SMTL ID : 4qnh.1 (1 other biounit)

Calcium-calmodulin (T79D) complexed with the calmodulin binding domain from a small conductance potassium channel SK2-a

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.02 Å

Oligo State

hetero-oligomer

Ligands

2 x SO4: SULFATE ION(Non-functional Binders)

SO4.1: 5 residues within 4Å: Chain A: R.36, K.55, K.58, H.59, K.62 9 PLIP interactions: 9 interactions with chain A Water bridges: A:R.36, A:K.58, A:K.58, A:K.58, A:H.59 Salt bridges: A:R.36, A:K.58, A:H.59, A:K.62 SO4.4: 5 residues within 4Å: Chain C: R.36, K.55, K.58, H.59, K.62 9 PLIP interactions: 9 interactions with chain C Water bridges: C:R.36, C:K.58, C:K.58, C:K.58, C:H.59 Salt bridges: C:R.36, C:K.58, C:H.59, C:K.62

4 x CA: CALCIUM ION(Non-covalent)

CA.2: 7 residues within 4Å: Chain B: D.21, D.23, G.24, D.25, T.27, I.28, E.32 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.21, B:D.25, B:T.27, B:E.32, H2O.3 CA.3: 7 residues within 4Å: Chain B: D.57, D.59, N.61, T.63, I.64, D.65, E.68 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.57, B:T.63, B:E.68, B:E.68, H2O.8 CA.5: 7 residues within 4Å: Chain D: D.21, D.23, G.24, D.25, T.27, I.28, E.32 5 PLIP interactions: 4 interactions with chain D, 1 Ligand-Water interactions Metal complexes: D:D.21, D:D.25, D:T.27, D:E.32, H2O.10 CA.6: 7 residues within 4Å: Chain D: D.57, D.59, N.61, T.63, I.64, D.65, E.68 5 PLIP interactions: 4 interactions with chain D, 1 Ligand-Water interactions Metal complexes: D:D.57, D:T.63, D:E.68, D:E.68, H2O.15

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zhang, M. et al., Selective phosphorylation modulates the PIP2 sensitivity of the CaM-SK channel complex. Nat.Chem.Biol. (2014)

Release Date

2014-08-06

Peptides

Small conductance calcium-activated potassium channel protein 2: AC
Calmodulin: BD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

C
B

B
R

D
R

Small conductance calcium-activated potassium channel protein 2

Calmodulin

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