SMTL ID : 4lmb.1

Crystal structure analysis of O-acetylserine sulfhydrylase CysK2 complexed with cystine from Microcystis aeruginosa 7806

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.91 Å

Oligo State

homo-dimer

Ligands

4 x CYS: CYSTEINE(Non-covalent)

CYS.1: 12 residues within 4Å: Chain A: K.53, T.81, S.82, G.83, N.84, T.85, M.132, Q.154, F.155, G.232 Ligands: CYS.2, PLP.3 13 PLIP interactions: 10 interactions with chain A, 3 Ligand-Ligand interactions Hydrogen bonds: A:T.81, A:S.82, A:S.82, A:G.83, A:N.84, A:T.85, A:T.85, A:Q.154, A:G.232, C.2 Salt bridges: A:K.53 Water bridges: C.1, C.1 CYS.2: 12 residues within 4Å: Chain A: S.82, M.108, M.132, F.155, H.228, I.230, Q.231, G.232, I.233, G.234, A.235 Ligands: CYS.1 7 PLIP interactions: 5 interactions with chain A, 2 Ligand-Ligand interactions Hydrogen bonds: A:S.82, A:I.230, A:G.232, C.1, C.1 Water bridges: A:M.132 Salt bridges: A:H.228 CYS.4: 12 residues within 4Å: Chain B: K.53, T.81, S.82, G.83, N.84, T.85, M.132, Q.154, F.155, G.232 Ligands: CYS.5, PLP.6 12 PLIP interactions: 9 interactions with chain B, 3 Ligand-Ligand interactions Hydrogen bonds: B:K.53, B:S.82, B:S.82, B:G.83, B:N.84, B:T.85, B:Q.154, B:G.232, C.5 Salt bridges: B:K.53 Water bridges: C.4, C.4 CYS.5: 12 residues within 4Å: Chain B: S.82, M.108, M.132, F.155, H.228, I.230, Q.231, G.232, I.233, G.234, A.235 Ligands: CYS.4 7 PLIP interactions: 5 interactions with chain B, 2 Ligand-Ligand interactions Hydrogen bonds: B:S.82, B:I.230, B:G.232, C.4, C.4 Water bridges: B:M.132 Salt bridges: B:H.228

2 x PLP: PYRIDOXAL-5'-PHOSPHATE(Covalent)

PLP.3: 18 residues within 4Å: Chain A: K.53, N.84, R.112, G.186, V.187, G.188, T.189, G.190, G.191, T.192, Q.231, G.232, I.233, S.276, P.303, S.304, Y.309 Ligands: CYS.1 18 PLIP interactions: 16 interactions with chain A, 2 Ligand-Ligand interactions Hydrophobic interactions: A:K.53 Hydrogen bonds: A:K.53, A:N.84, A:G.188, A:T.189, A:G.190, A:G.191, A:T.192, A:T.192, A:S.276, C.1, C.1 Water bridges: A:N.84, A:R.112, A:N.160, A:N.160, A:I.193 Salt bridges: A:K.53 PLP.6: 18 residues within 4Å: Chain B: K.53, N.84, R.112, G.186, V.187, G.188, T.189, G.190, G.191, T.192, Q.231, G.232, I.233, S.276, P.303, S.304, Y.309 Ligands: CYS.4 17 PLIP interactions: 14 interactions with chain B, 3 Ligand-Ligand interactions Hydrophobic interactions: B:K.53 Hydrogen bonds: B:N.84, B:G.188, B:T.189, B:G.190, B:G.191, B:T.192, B:T.192, B:S.276, C.4, C.4 Water bridges: B:R.112, B:N.160, B:T.189, B:I.193, C.4 Salt bridges: B:K.53

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lu, M. et al., Structural and biochemical analyses of Microcystis aeruginosa O-acetylserine sulfhydrylases reveal a negative feedback regulation of cysteine biosynthesis. Biochim.Biophys.Acta (2014)

Release Date

2014-06-04

Peptides

Cysteine synthase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Cysteine synthase