SMTL ID : 3r19.1

Chicken sulfite oxidase triple mutant with altered activity and substrate affinity

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

homo-dimer

Ligands

2 x MTE: PHOSPHONIC ACIDMONO-(2-AMINO-5,6-DIMERCAPTO-4-OXO-3,7,8A,9,10,10A-HEXAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL)ESTER(Non-covalent)

MTE.1: 20 residues within 4Å: Chain A: F.135, F.136, T.137, R.138, N.139, H.140, C.185, G.242, D.244, Y.252, D.282, H.283, R.288, G.296, A.297, S.299, V.300, K.301, W.302 Ligands: MO.2 15 PLIP interactions: 15 interactions with chain A Hydrogen bonds: A:R.138, A:R.138, A:H.140, A:H.140, A:R.288, A:S.299, A:K.301, A:K.301 Water bridges: A:L.141 Salt bridges: A:D.244, A:H.283, A:R.288, A:K.301 pi-Stacking: A:Y.252 pi-Cation interactions: A:K.301 MTE.3: 20 residues within 4Å: Chain B: F.135, F.136, T.137, R.138, N.139, H.140, C.185, G.242, D.244, Y.252, D.282, H.283, R.288, G.296, A.297, S.299, V.300, K.301, W.302 Ligands: MO.4 15 PLIP interactions: 15 interactions with chain B Hydrogen bonds: B:R.138, B:R.138, B:H.140, B:H.140, B:R.288, B:S.299, B:K.301, B:K.301 Water bridges: B:L.141 Salt bridges: B:D.244, B:H.283, B:R.288, B:K.301 pi-Stacking: B:Y.252 pi-Cation interactions: B:K.301

2 x MO: MOLYBDENUM ATOM(Non-covalent)

MO.2: 3 residues within 4Å: Chain A: C.185, A.186 Ligands: MTE.1 Ligand excluded by PLIP MO.4: 3 residues within 4Å: Chain B: C.185, A.186 Ligands: MTE.3 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Qiu, J.A. et al., Structure-based alteration of substrate specificity and catalytic activity of sulfite oxidase from sulfite oxidation to nitrate reduction. Biochemistry (2012)

Release Date

2012-02-08

Peptides

Sulfite oxidase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Sulfite oxidase