SMTL ID : 7p4q.1

Structure of the quinolinate synthase S124A variant complexed with citrate

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.20 Å

Oligo State

monomer

Ligands

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

SF4.1: 11 residues within 4Å: Chain A: Y.28, C.88, P.89, M.90, N.116, C.175, V.177, E.202, C.261 Ligands: FLC.2, F3S.3 4 PLIP interactions: 4 interactions with chain A, Salt bridges: A:E.202 Metal complexes: A:C.88, A:C.175, A:C.261

1 x FLC: CITRATE ANION(Non-covalent)

FLC.2: 13 residues within 4Å: Chain A: H.26, Y.28, D.42, S.43, M.66, Y.114, N.116, H.200, E.202, S.216, T.217 Ligands: SF4.1, F3S.3 13 PLIP interactions: 13 interactions with chain A Hydrophobic interactions: A:Y.28 Hydrogen bonds: A:S.43, A:N.116, A:H.200, A:T.217 Water bridges: A:L.44, A:A.131, A:A.131, A:T.217, A:G.218 Salt bridges: A:H.26, A:H.26, A:H.200

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

F3S.3: 10 residues within 4Å: Chain A: Y.28, C.88, M.90, N.116, C.175, P.176, E.202, C.261 Ligands: SF4.1, FLC.2 3 PLIP interactions: 3 interactions with chain A, Metal complexes: A:C.88, A:C.175, A:C.261

6 x GOL: GLYCEROL(Non-functional Binders)

GOL.4: 3 residues within 4Å: Chain A: K.78, E.279, E.282 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:K.78, A:E.279, A:E.282 GOL.5: 4 residues within 4Å: Chain A: E.68, I.284, L.285, P.286 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:E.68 Water bridges: A:I.284 GOL.6: 4 residues within 4Å: Chain A: E.97, R.100, E.101, E.104 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:E.97, A:E.104, A:E.104 Water bridges: A:E.97 GOL.7: 6 residues within 4Å: Chain A: P.176, V.177, Q.179, F.180, E.257, M.258 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:Q.179, A:Q.179, A:E.257, A:M.258 Water bridges: A:N.181 GOL.8: 4 residues within 4Å: Chain A: D.209, K.210, A.211, D.212 2 PLIP interactions: 2 interactions with chain A Water bridges: A:R.189, A:R.189 GOL.9: 6 residues within 4Å: Chain A: K.71, P.75, D.76, K.77, K.78, E.282 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:K.71, A:P.75, A:D.76, A:E.282

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.10: 4 residues within 4Å: Chain A: N.74, P.75, D.76, K.77 Ligand excluded by PLIP CL.11: 2 residues within 4Å: Chain A: Q.45, K.222 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Basbous, H. et al., Transient Formation of a Second Active Site Cavity during Quinolinic Acid Synthesis by NadA. Acs Chem.Biol. (2021)

Release Date

2021-09-29

Peptides

Quinolinate synthase A: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Quinolinate synthase A