SMTL ID : 9r8y.1 (1 other biounit)

Three dimensional structure of human carbonic anhydrase IX in complex with sulfonamide

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.95 Å

Oligo State

homo-dimer

Ligands

2 x ZN: ZINC ION(Non-covalent)

ZN.1: 5 residues within 4Å: Chain A: H.91, H.93, E.103, H.116 Ligands: 01.2 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:H.91, A:H.93, A:H.116 ZN.3: 4 residues within 4Å: Chain B: H.91, H.93, H.116 Ligands: 01.4 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:H.91, B:H.93, B:H.116

2 x 01: ~{N}-butyl-4-cyclohexylsulfanyl-3-sulfamoyl-benzamide

01.2: 14 residues within 4Å: Chain A: H.65, S.66, Q.89, H.91, H.93, E.103, H.116, V.118, V.127, L.196, T.197, T.198, N.239 Ligands: ZN.1 9 PLIP interactions: 9 interactions with chain A Hydrophobic interactions: A:H.65, A:V.127, A:L.196, A:T.198, A:N.239 Hydrogen bonds: A:T.197 Water bridges: A:N.63, A:T.197 pi-Cation interactions: A:H.91 01.4: 14 residues within 4Å: Chain B: H.65, S.66, Q.89, H.91, H.93, E.103, H.116, V.118, V.127, L.196, T.197, T.198, N.239 Ligands: ZN.3 10 PLIP interactions: 10 interactions with chain B Hydrophobic interactions: B:H.65, B:V.118, B:V.127, B:T.198 Hydrogen bonds: B:E.103, B:T.197 Water bridges: B:N.63, B:H.93, B:T.197 pi-Cation interactions: B:H.91

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zaksauskas, A. et al., Affinity and Selectivity of Protein-Ligand Recognition: A Minor Chemical Modification Changes Carbonic Anhydrase Binding Profile. J.Med.Chem. (2025)

Release Date

2025-10-08

Peptides

Carbonic anhydrase 9: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Carbonic anhydrase 9

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