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SMTL ID : 2q1b.1

Carbonic Anhydrase II in Complex with Saccharin

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

monomer

Ligands

2 x ZN: ZINC ION(Non-covalent)

ZN.1:	5 residues within 4Å: Chain A: H.94, H.96, H.119, T.198 Ligands: LSA.5 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:H.94, A:H.96, A:H.119
ZN.2:	3 residues within 4Å: Chain A: N.62, G.63, H.64 4 PLIP interactions: 3 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:N.62, A:H.64, A:H.64, H₂O.10

1 x HG: MERCURY (II) ION(Non-covalent)

HG.3:

6 residues within 4Å:

Chain A: V.134, Q.135, Q.136, E.204, C.205
Ligands: BEZ.4

2 PLIP interactions:

2 interactions with chain A

Metal complexes: A:Q.136, A:C.205

1 x BEZ: BENZOIC ACID(Non-covalent)

BEZ.4:

5 residues within 4Å:

Chain A: Q.135, Q.136, P.137, E.204
Ligands: HG.3

2 PLIP interactions:

2 interactions with chain A

Hydrophobic interactions: A:P.137, A:P.137

1 x LSA: 1,2-BENZISOTHIAZOL-3(2H)-ONE 1,1-DIOXIDE(Non-covalent)

LSA.5:

10 residues within 4Å:

Chain A: H.94, H.96, H.119, V.121, V.142, L.197, T.198, T.199, W.208
Ligands: ZN.1

4 PLIP interactions:

4 interactions with chain A

Hydrophobic interactions: A:L.197
Hydrogen bonds: A:T.198, A:T.199
pi-Stacking: A:H.94

Links

RCSB PDBe PDBe-KB PDBj PDBsum CATH PLIP

Citation

Kohler, K. et al., Saccharin Inhibits Carbonic Anhydrases: Possible Explanation for its Unpleasant Metallic Aftertaste. Angew.Chem.Int.Ed.Engl. (2007)

Release Date

2007-09-04

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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