SMTL ID : 3fzw.1

Crystal Structure of Ketosteroid Isomerase D40N-D103N from Pseudomonas putida (pKSI) with bound equilenin

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.32 Å

Oligo State

homo-dimer

Ligands

2 x EQU: EQUILENIN(Non-covalent)

EQU.1: 9 residues within 4Å: Chain A: Y.16, N.40, V.66, F.86, V.88, M.90, L.99, N.103, W.120 8 PLIP interactions: 8 interactions with chain A Hydrophobic interactions: A:V.66, A:F.86, A:V.88, A:L.99, A:W.120 Hydrogen bonds: A:N.103, A:N.103 Water bridges: A:N.40 EQU.5: 8 residues within 4Å: Chain B: Y.16, N.40, G.60, F.86, L.99, N.103, M.116, W.120 5 PLIP interactions: 5 interactions with chain B Hydrophobic interactions: B:F.86, B:L.99 Hydrogen bonds: B:Y.16, B:N.103, B:N.103

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.2: 2 residues within 4Å: Chain A: W.92, N.93 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:N.93 Water bridges: A:G.94 GOL.3: 4 residues within 4Å: Chain A: T.37, E.39, P.46, Q.117 No protein-ligand interaction detected (PLIP)

1 x IPA: ISOPROPYL ALCOHOL(Non-functional Binders)

IPA.4: 3 residues within 4Å: Chain A: T.5, A.6, H.78 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:A.6 Water bridges: A:P.4, A:T.5, A:Q.7, A:S.77, A:H.78

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Sigala, P.A. et al., Hydrogen bond coupling in the ketosteroid isomerase active site. Biochemistry (2009)

Release Date

2009-06-02

Peptides

Steroid Delta-isomerase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Steroid Delta-isomerase

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