SMTL ID : 6awf.2 (1 other biounit)

Escherichia coli quinol:fumarate reductase crystallized without dicarboxylate

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 3.35 Å

Oligo State

hetero-1-1-1-1-mer

Ligands

1 x FAD: FLAVIN-ADENINE DINUCLEOTIDE(Covalent)

FAD.1: 37 residues within 4Å: Chain A: V.11, G.12, A.13, G.14, G.15, A.16, S.37, K.38, V.39, S.44, H.45, T.46, A.48, A.49, E.50, G.51, G.52, H.156, F.157, V.158, A.192, T.193, G.194, T.204, N.205, D.212, L.243, H.356, Y.357, E.380, R.391, S.394, N.395, S.396, L.397, L.400 Ligands: PO4.2 26 PLIP interactions: 26 interactions with chain A Hydrophobic interactions: A:L.243 Hydrogen bonds: A:A.13, A:G.15, A:A.16, A:K.38, A:K.38, A:V.39, A:S.44, A:H.45, A:T.46, A:T.46, A:E.50, A:G.51, A:G.52, A:G.52, A:V.158, A:D.212, A:D.212, A:E.380, A:R.391, A:R.391, A:S.394, A:S.396, A:S.396, A:L.397 pi-Stacking: A:H.356

1 x PO4: PHOSPHATE ION(Non-functional Binders)

PO4.2: 8 residues within 4Å: Chain A: F.117, Q.231, H.233, H.356, R.391, G.393, S.394 Ligands: FAD.1 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:Q.231, A:S.394 Salt bridges: A:H.233, A:H.356, A:R.391

1 x FES: FE2/S2 (INORGANIC) CLUSTER(Non-covalent)

FES.3: 9 residues within 4Å: Chain B: W.55, S.56, C.57, A.60, I.61, C.62, G.63, C.65, C.77 4 PLIP interactions: 4 interactions with chain B, Metal complexes: B:C.57, B:C.62, B:C.65, B:C.77

1 x F3S: FE3-S4 CLUSTER(Non-covalent)

F3S.4: 12 residues within 4Å: Chain B: C.158, Q.160, P.170, C.204, T.205, F.206, V.207, G.208, Y.209, C.210, A.221, I.224 3 PLIP interactions: 3 interactions with chain B, Metal complexes: B:C.158, B:C.204, B:C.210

1 x SF4: IRON/SULFUR CLUSTER(Non-covalent)

SF4.5: 9 residues within 4Å: Chain B: C.148, I.149, C.151, G.152, L.153, C.154, A.171, C.214, P.220 4 PLIP interactions: 4 interactions with chain B, Metal complexes: B:C.148, B:C.151, B:C.154, B:C.214

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Starbird, C.A. et al., New crystal forms of the integral membrane Escherichia coli quinol:fumarate reductase suggest that ligands control domain movement. J. Struct. Biol. (2018)

Release Date

2017-12-06

Peptides

Fumarate reductase flavoprotein subunit: A
Fumarate reductase iron-sulfur subunit: B
Fumarate reductase subunit C: C
Fumarate reductase subunit D: D

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

B
F

C
G

D
H

Membrane

We predict this structure to be a membrane protein.
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Fumarate reductase flavoprotein subunit

Fumarate reductase iron-sulfur subunit

Fumarate reductase subunit C

Fumarate reductase subunit D

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