SMTL ID : 5kp3.1

Crystal Structure of Ketosteroid Isomerase from Pseudomonas putida (pKSI) bound to Equilenin; D40N, Y57(Cl-Y)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

homo-dimer

Ligands

2 x EQU: EQUILENIN(Non-covalent)

EQU.1: 10 residues within 4Å: Chain A: Y.16, V.20, N.40, V.66, F.86, V.88, M.90, L.99, D.103, W.120 6 PLIP interactions: 6 interactions with chain A Hydrophobic interactions: A:V.20, A:V.66, A:F.86, A:V.88, A:L.99 Hydrogen bonds: A:D.103 EQU.3: 10 residues within 4Å: Chain B: Y.16, N.40, G.60, V.66, F.86, V.88, M.90, L.99, D.103, W.120 6 PLIP interactions: 6 interactions with chain B Hydrophobic interactions: B:V.66, B:F.86, B:V.88, B:L.99 Hydrogen bonds: B:Y.16, B:D.103

2 x SO4: SULFATE ION(Non-functional Binders)

SO4.2: 3 residues within 4Å: Chain A: R.106, T.115, Q.117 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:T.115, A:Q.117 Water bridges: A:T.115 Salt bridges: A:R.106 SO4.4: 3 residues within 4Å: Chain B: R.106, T.115, Q.117 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:T.115, B:T.115, B:Q.117 Salt bridges: B:R.106

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Wu, Y. et al., A Critical Test of the Electrostatic Contribution to Catalysis with Noncanonical Amino Acids in Ketosteroid Isomerase. J.Am.Chem.Soc. (2016)

Release Date

2016-09-07

Peptides

Steroid Delta-isomerase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Steroid Delta-isomerase

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