SMTL ID : 7c5e.1

Crystal structure of Keap1 in complex with fumarate (FUM)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.75 Å

Oligo State

monomer

Ligands

3 x FUM: FUMARIC ACID(Non-covalent)

FUM.1: 3 residues within 4Å: Chain A: Y.32, Y.270 Ligands: ACT.6 No protein-ligand interaction detected (PLIP) FUM.2: 5 residues within 4Å: Chain A: V.67, V.68, G.69, G.70, G.121 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:G.69, A:G.70 Water bridges: A:G.121 FUM.5: 8 residues within 4Å: Chain A: R.113, F.176, R.181, S.206, G.207, Y.223, S.253, A.254 8 PLIP interactions: 8 interactions with chain A Hydrophobic interactions: A:Y.223 Hydrogen bonds: A:S.206, A:S.253, A:A.254 Water bridges: A:Q.228 Salt bridges: A:R.113, A:R.113, A:R.181

2 x ACT: ACETATE ION(Non-functional Binders)

ACT.3: 4 residues within 4Å: Chain A: R.52, L.53, A.54, D.55 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:R.52 Hydrogen bonds: A:D.55 Water bridges: A:R.52 Salt bridges: A:R.52 ACT.6: 5 residues within 4Å: Chain A: R.78, N.80, N.112, R.113 Ligands: FUM.1 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:R.113 Hydrogen bonds: A:S.61, A:N.80 Salt bridges: A:R.78

1 x PGE: TRIETHYLENE GLYCOL(Non-functional Binders)

PGE.4: 1 residues within 4Å: Chain A: R.249 3 PLIP interactions: 3 interactions with chain A Water bridges: A:H.250, A:H.251, A:D.271

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

SO4.7: 5 residues within 4Å: Chain A: I.133, H.134, H.135, S.136, S.137 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:S.136, A:S.137, A:S.137 Water bridges: A:S.136, A:S.137, A:R.157 Salt bridges: A:H.135 SO4.8: 2 residues within 4Å: Chain A: R.192, R.196 2 PLIP interactions: 2 interactions with chain A Salt bridges: A:R.192, A:R.196

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Unni, S. et al., Structural insights into the multiple binding modes of Dimethyl Fumarate (DMF) and its analogs to the Kelch domain of Keap1. Febs J. (2021)

Release Date

2020-08-05

Peptides

Kelch-like ECH-associated protein 1: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Kelch-like ECH-associated protein 1

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