SMTL ID : 2q3c.1

2.1 A Resolution Crystal Structure of O-Acetylserine Sulfhydrylase (OASS) Holoenzyme From MYCOBACTERIUM TUBERCULOSIS in Complex with the Inhibitory Peptide DFSI

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

homo-dimer

Ligands

2 x ASP- PHE- SER- ILE: DFSI inhibitory peptide(Non-covalent)

ASP-PHE-SER-ILE.1: 17 residues within 4Å: Chain A: K.47, T.74, S.75, G.76, N.77, T.78, G.124, M.125, Q.147, F.148, G.181, T.182, K.218, Q.224, G.225, G.227, A.228 21 PLIP interactions: 21 interactions with chain A Hydrophobic interactions: A:M.125, A:T.182, A:A.228 Hydrogen bonds: A:T.74, A:G.76, A:T.78, A:T.78, A:M.125, A:Q.147, A:G.225 Water bridges: A:S.75, A:S.75, A:S.75, A:S.75, A:N.77, A:N.77, A:S.126, A:H.221, A:H.221, A:I.226 Salt bridges: A:K.218 ASP-PHE-SER-ILE.3: 17 residues within 4Å: Chain B: K.47, T.74, S.75, G.76, N.77, T.78, G.124, M.125, Q.147, F.148, G.181, T.182, K.218, Q.224, G.225, G.227, A.228 19 PLIP interactions: 19 interactions with chain B Hydrophobic interactions: B:M.125, B:T.182, B:A.228 Hydrogen bonds: B:T.74, B:G.76, B:T.78, B:M.125, B:Q.147, B:G.225 Water bridges: B:S.75, B:S.75, B:S.75, B:S.75, B:N.77, B:N.77, B:S.126, B:H.221, B:I.226 Salt bridges: B:K.218

2 x MPD: (4S)-2-METHYL-2,4-PENTANEDIOL(Non-functional Binders)

MPD.2: 7 residues within 4Å: Chain A: L.252, A.255, R.256, V.266, I.268, G.299, Y.302 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:L.252, A:A.255, A:I.268 Hydrogen bonds: A:R.256 MPD.4: 7 residues within 4Å: Chain B: L.252, A.255, R.256, V.266, I.268, G.299, Y.302 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:L.252, B:A.255, B:I.268 Hydrogen bonds: B:R.256

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Schnell, R. et al., Structural Insights into Catalysis and Inhibition of O-Acetylserine Sulfhydrylase from Mycobacterium tuberculosis: CRYSTAL STRUCTURES OF THE ENZYME {alpha}-AMINOACRYLATE INTERMEDIATE AND AN ENZYME-INHIBITOR COMPLEX. J.Biol.Chem. (2007)

Release Date

2007-06-12

Peptides

Cysteine synthase A: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Cysteine synthase A

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