SMTL ID : 6u4i.1

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

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.55 Å

Oligo State

homo-dimer

Ligands

2 x EQU: EQUILENIN(Non-covalent)

EQU.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 5 PLIP interactions: 5 interactions with chain A Hydrophobic interactions: A:F.86, A:L.99, A:W.120 Hydrogen bonds: A:Y.16, A:D.103 EQU.3: 16 residues within 4Å: Chain B: Y.16, V.20, D.40, 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 6 PLIP interactions: 6 interactions with chain B Hydrophobic interactions: B:F.86, B:V.88, B:L.99, B:W.120 Hydrogen bonds: B:Y.16, B:D.103

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.5: 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.4: 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

2020-09-23

Peptides

Steroid Delta-isomerase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Steroid Delta-isomerase

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