SMTL ID : 5tuo.1 (3 other biounits)

Crystal structure of the complex of Helicobacter pylori alpha-carbonic anhydrase with 5-amino-1,3,4-thiadiazole-2-sulfonamide inhibitor.

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

homo-dimer

Ligands

2 x ZN: ZINC ION(Non-covalent)

ZN.1: 5 residues within 4Å: Chain A: H.97, H.99, H.116, T.178 Ligands: 1SA.3 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:H.97, A:H.99, A:H.116 ZN.4: 5 residues within 4Å: Chain B: H.97, H.99, H.116, T.178 Ligands: 1SA.6 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:H.97, B:H.99, B:H.116

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

CL.2: 6 residues within 4Å: Chain A: M.102, E.103, F.104, S.114, H.116, A.130 Ligand excluded by PLIP CL.5: 6 residues within 4Å: Chain B: M.102, E.103, F.104, S.114, H.116, A.130 Ligand excluded by PLIP

2 x 1SA: 5-AMINO-1,3,4-THIADIAZOLE-2-SULFONAMIDE(Non-covalent)

1SA.3: 10 residues within 4Å: Chain A: T.70, H.71, T.73, H.97, H.99, H.116, L.177, T.178, A.179 Ligands: ZN.1 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:T.70, A:T.178, A:A.179 Water bridges: A:N.95 pi-Stacking: A:H.97 1SA.6: 10 residues within 4Å: Chain B: N.95, H.97, H.99, H.116, V.118, L.177, T.178, A.179, W.188 Ligands: ZN.4 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:K.75, B:N.95, B:T.178, B:T.178, B:A.179

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Modak, J.K. et al., Structure-Activity Relationship for Sulfonamide Inhibition of Helicobacter pylori alpha-Carbonic Anhydrase. J. Med. Chem. (2016)

Release Date

2017-09-13

Peptides

Alpha-carbonic anhydrase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Alpha-carbonic anhydrase

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