SMTL ID : 6tzd.1

Crystal Structure of Ketosteroid Isomerase from Pseudomonas Putida (pKSI) bound to 4-Androstenedione at 280 K

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.45 Å

Oligo State

homo-dimer

Ligands

2 x ASD: 4-ANDROSTENE-3-17-DIONE(Non-covalent)

ASD.1: 17 residues within 4Å: Chain A: Y.16, V.20, D.40, F.56, Y.57, G.60, L.61, V.66, F.86, V.88, M.90, L.99, V.101, D.103, M.116, A.118, W.120 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:F.56, A:F.86, A:L.99 Hydrogen bonds: A:Y.16 ASD.4: 17 residues within 4Å: Chain B: Y.16, V.20, D.40, F.56, Y.57, G.60, L.61, V.66, F.86, V.88, M.90, L.99, V.101, D.103, M.116, A.118, W.120 5 PLIP interactions: 5 interactions with chain B Hydrophobic interactions: B:F.56, B:F.86, B:W.120, B:W.120 Hydrogen bonds: B:Y.16

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

CL.2: 6 residues within 4Å: Chain A: G.72, P.73, R.75, P.85 Chain B: T.71, P.85 Ligand excluded by PLIP CL.3: 6 residues within 4Å: Chain A: T.71, P.85 Chain B: G.72, P.73, R.75, P.85 Ligand excluded by PLIP

1 x MG: MAGNESIUM ION(Non-functional Binders)

MG.5: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Yabukarski, F. et al., Assessment of enzyme active site positioning and tests of catalytic mechanisms through X-ray-derived conformational ensembles. Proc.Natl.Acad.Sci.USA (2020)

Release Date

2020-08-19

Peptides

Steroid Delta-isomerase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
A

Steroid Delta-isomerase

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