SMTL ID : 2qx9.1

Crystal Structure of Quinone Reductase II

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.31 Å

Oligo State

homo-dimer

Ligands

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

FAD.1: 26 residues within 4Å: Chain A: H.11, K.15, S.16, F.17, N.18, S.20, P.102, L.103, Y.104, W.105, F.106, T.147, T.148, G.149, G.150, Y.155, P.192, E.193, E.197, R.200, K.201 Chain B: N.66, Y.67, G.68, D.117 Ligands: ML2.2 23 PLIP interactions: 21 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:Y.104, A:Y.104, B:Y.67 Hydrogen bonds: A:F.17, A:N.18, A:S.20, A:S.20, A:L.103, A:L.103, A:W.105, A:F.106, A:T.147, A:T.147, A:G.149, A:G.150, A:Y.155, A:E.193, A:R.200, B:N.66 Salt bridges: A:H.11 pi-Stacking: A:F.17, A:F.17, A:Y.104 FAD.5: 27 residues within 4Å: Chain A: V.64, N.66, Y.67, G.68, D.117 Chain B: H.11, K.15, S.16, F.17, N.18, S.20, P.102, L.103, Y.104, W.105, F.106, T.147, T.148, G.149, G.150, Y.155, P.192, E.193, R.200, K.201, V.204 Ligands: ML2.3 25 PLIP interactions: 21 interactions with chain B, 4 interactions with chain A Hydrophobic interactions: B:Y.104, B:Y.104, A:Y.67, A:D.117 Hydrogen bonds: B:K.15, B:F.17, B:N.18, B:N.18, B:S.20, B:L.103, B:L.103, B:W.105, B:F.106, B:T.147, B:T.147, B:G.149, B:G.150, B:Y.155, B:Y.155, B:E.193, A:N.66 Water bridges: B:E.193, A:N.66 Salt bridges: B:H.11 pi-Stacking: B:Y.104

2 x ML2: N-[2-(2-iodo-5-methoxy-1H-indol-3-yl)ethyl]acetamide(Non-covalent)

ML2.2: 9 residues within 4Å: Chain A: W.105, G.150, Y.155, N.161, E.193 Chain B: G.68, F.126, F.178 Ligands: FAD.1 5 PLIP interactions: 2 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:F.178, B:F.178, A:W.105 Hydrogen bonds: A:N.161, A:E.193 ML2.3: 11 residues within 4Å: Chain A: Q.122, F.126, I.128, F.178 Chain B: W.105, G.149, M.154, Y.155, N.161, I.194 Ligands: FAD.5 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:W.105, B:I.194, A:F.178, A:F.178

2 x ZN: ZINC ION(Non-covalent)

ZN.4: 3 residues within 4Å: Chain A: H.173, H.177, C.222 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:H.173, A:H.177, A:C.222, A:C.222 ZN.6: 3 residues within 4Å: Chain B: H.173, H.177, C.222 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:H.173, B:H.177, B:C.222, B:C.222

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Calamini, B. et al., Kinetic, thermodynamic and X-ray structural insights into the interaction of melatonin and analogues with quinone reductase 2. Biochem.J. (2008)

Release Date

2008-09-02

Peptides

Ribosyldihydronicotinamide dehydrogenase [quinone]: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Ribosyldihydronicotinamide dehydrogenase [quinone]

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