SMTL ID : 7mdj.1

The structure of KcsA in complex with a synthetic Fab

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.75 Å

Oligo State

hetero-4-4-4-mer

Ligands

16 x K: POTASSIUM ION(Non-covalent)

K.1: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.3, K.5, K.7, K.9, K.11, K.13, K.15 Ligand excluded by PLIP K.2: 15 residues within 4Å: Chain C: V.76, G.77 Chain F: V.76, G.77 Chain I: V.76, G.77 Chain L: V.76, G.77 Ligands: K.3, K.6, K.7, K.10, K.11, K.14, K.15 Ligand excluded by PLIP K.3: 15 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.2, K.5, K.6, K.7, K.9, K.10, K.11, K.13, K.14, K.15 Ligand excluded by PLIP K.4: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.8, K.12, K.16 Ligand excluded by PLIP K.5: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.3, K.7, K.9, K.11, K.13, K.15 Ligand excluded by PLIP K.6: 15 residues within 4Å: Chain C: V.76, G.77 Chain F: V.76, G.77 Chain I: V.76, G.77 Chain L: V.76, G.77 Ligands: K.2, K.3, K.7, K.10, K.11, K.14, K.15 Ligand excluded by PLIP K.7: 15 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.2, K.3, K.5, K.6, K.9, K.10, K.11, K.13, K.14, K.15 Ligand excluded by PLIP K.8: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.4, K.12, K.16 Ligand excluded by PLIP K.9: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.3, K.5, K.7, K.11, K.13, K.15 Ligand excluded by PLIP K.10: 15 residues within 4Å: Chain C: V.76, G.77 Chain F: V.76, G.77 Chain I: V.76, G.77 Chain L: V.76, G.77 Ligands: K.2, K.3, K.6, K.7, K.11, K.14, K.15 Ligand excluded by PLIP K.11: 15 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.2, K.3, K.5, K.6, K.7, K.9, K.10, K.13, K.14, K.15 Ligand excluded by PLIP K.12: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.4, K.8, K.16 Ligand excluded by PLIP K.13: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.3, K.5, K.7, K.9, K.11, K.15 Ligand excluded by PLIP K.14: 15 residues within 4Å: Chain C: V.76, G.77 Chain F: V.76, G.77 Chain I: V.76, G.77 Chain L: V.76, G.77 Ligands: K.2, K.3, K.6, K.7, K.10, K.11, K.15 Ligand excluded by PLIP K.15: 15 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.2, K.3, K.5, K.6, K.7, K.9, K.10, K.11, K.13, K.14 Ligand excluded by PLIP K.16: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.4, K.8, K.12 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Rohaim, A. et al., Engineering of a synthetic antibody fragment for structural and functional studies of K+ channels. J.Gen.Physiol. (2022)

Release Date

2022-02-16

Peptides

Fab heavy chain: ADGJ
Fab light chain: BEHK
pH-gated potassium channel KcsA: CFIL

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

D
A

G
A

J
A

B
B

E
B

H
B

K
B

C
C

F
C

I
C

L
C

Membrane

We predict this structure to be a membrane protein.
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Fab heavy chain

Fab light chain

pH-gated potassium channel KcsA

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