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SMTL ID : 9h0v.1

Human Carbonic Anhydrase II in complex with biguanide derivative inhibitor 1-carbamimidamido-N-[2-(4-sulfamoylphenyl)ethyl]methanimidamide

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.40 Å

Oligo State

monomer

Ligands

1 x ZN: ZINC ION(Non-covalent)

ZN.1:

6 residues within 4Å:

Chain A: H.94, H.96, E.106, H.119, T.198
Ligands: 01.2

3 PLIP interactions:

3 interactions with chain A

Metal complexes: A:H.94, A:H.96, A:H.119

2 x 01: 1-carbamimidoyl-3-[2-(4-sulfamoylphenyl)ethyl]guanidine

01.2:	14 residues within 4Å: Chain A: N.62, N.67, Q.92, H.94, H.96, H.119, V.121, V.142, L.197, T.198, T.199, W.208 Ligands: ZN.1, 01.3 15 PLIP interactions: 15 interactions with chain A Hydrophobic interactions: A:V.121, A:L.197, A:L.197 Hydrogen bonds: A:N.62, A:N.67, A:Q.92, A:T.198, A:T.198 Water bridges: A:N.62, A:H.64, A:H.64, A:T.199, A:T.199, A:T.199, A:T.199
01.3:	8 residues within 4Å: Chain A: L.60, N.67, E.69, D.72, S.73, I.91, Q.92 Ligands: 01.2 13 PLIP interactions: 13 interactions with chain A Hydrophobic interactions: A:E.69, A:I.91, A:I.91 Hydrogen bonds: A:N.67, A:E.69, A:E.69, A:D.72 Water bridges: A:D.71, A:D.72, A:Q.92, A:Q.92 Salt bridges: A:D.72, A:D.72

1 x DMS: DIMETHYL SULFOXIDE(Non-functional Binders)

DMS.4:

7 residues within 4Å:

Chain A: W.5, N.11, H.15, W.16, K.18, D.19, F.20

2 PLIP interactions:

2 interactions with chain A

Water bridges: A:W.5
Salt bridges: A:D.19

Links

RCSB PDBe PDBe-KB PDBj PDBsum CATH PLIP

Citation

Melfi, F. et al., O-derivatization of natural tropolone and beta-thujaplicin leading to effective inhibitors of human carbonic anhydrases IX and XII. Eur.J.Med.Chem. (2025)

Release Date

2025-10-29

Peptides

Carbonic anhydrase 2: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Export Alignment

Secondary Structure
NoneDSSPPSIPREDSSpro

Colour Scheme

Fade MismatchesEnhance Mismatches

ChainUnique ChainRainbow2° StructureBfactorBfactor RangeSOAEntropyClustalHydrophobicSizeChargedPolarProlineSer/ThrCysteineAliphaticAromaticNo Colour

Background

3D Viewer
NGLPV2D

Carbonic anhydrase 2

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