SMTL ID : 8ct0.2 (3 other biounits)

Crystal structure of FAD reductase CtcQ from Kitasatospora aureofaciens in complex with FAD and NAD

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.45 Å

Oligo State

homo-dimer

Ligands

3 x FAD: FLAVIN-ADENINE DINUCLEOTIDE(Non-covalent)

FAD.1: 12 residues within 4Å: Chain A: F.22, L.23, M.26, G.27, S.51, N.68, H.144, Y.166, R.169 Chain B: S.55, K.58 Ligands: FAD.2 8 PLIP interactions: 7 interactions with chain A, 1 interactions with chain B Hydrophobic interactions: A:Y.166, A:Y.166 Hydrogen bonds: A:N.68, A:N.68, A:Y.166, B:S.55 Water bridges: A:M.26 Salt bridges: A:R.169 FAD.2: 23 residues within 4Å: Chain A: L.48, T.49, C.50, S.51, A.52, C.66, I.67, N.68, D.70, S.71, R.72, V.73, S.96, F.99, A.100, A.101, P.102, V.103, D.104, R.106, H.144, Y.171 Ligands: FAD.1 17 PLIP interactions: 17 interactions with chain A Hydrophobic interactions: A:T.49 Hydrogen bonds: A:T.49, A:T.49, A:S.51, A:A.52, A:C.66, A:N.68, A:D.70, A:R.72, A:A.100, A:P.102, A:R.106 Water bridges: A:R.72, A:R.72 Salt bridges: A:R.106 pi-Cation interactions: A:R.72, A:R.72 FAD.4: 16 residues within 4Å: Chain B: L.48, T.49, C.50, S.51, A.52, C.66, I.67, N.68, S.71, R.72, V.73, F.99, A.100, R.106, Y.171 Ligands: NAI.5 12 PLIP interactions: 12 interactions with chain B Hydrophobic interactions: B:T.49 Hydrogen bonds: B:T.49, B:T.49, B:S.51, B:A.52, B:C.66, B:N.68, B:N.68, B:R.72, B:A.100, B:R.106 Salt bridges: B:R.106

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

PO4.3: 4 residues within 4Å: Chain A: G.115, S.116, H.130, E.132 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:S.116, A:S.116, A:E.132 Salt bridges: A:H.130 PO4.6: 5 residues within 4Å: Chain B: G.115, S.116, H.130, E.132, G.154 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:S.116, B:E.132, B:G.154 Salt bridges: B:H.130 PO4.7: 7 residues within 4Å: Chain B: R.89, G.90, G.91, P.161, S.162, R.173, E.178 6 PLIP interactions: 6 interactions with chain B Hydrogen bonds: B:G.90, B:G.91, B:S.162, B:S.162 Salt bridges: B:R.89, B:R.173

1 x NAI: 1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE(Non-covalent)

NAI.5: 10 residues within 4Å: Chain A: S.55, K.58 Chain B: L.23, M.26, G.27, N.68, H.144, Y.166, R.169 Ligands: FAD.4 6 PLIP interactions: 4 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:N.68, B:Y.166, B:Y.166, A:S.55, A:K.58 Salt bridges: B:R.169

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hou, C. et al., Crystal structures and complex formation of halogenase CtcP and FAD reductase CtcQ from the chlortetracycline biosynthetic pathway. To Be Published

Release Date

2023-05-17

Peptides

Flavin reductase (NADH): AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
H

Flavin reductase (NADH)

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