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sc-PDB

An Annotated Database of Druggable Binding Sites from the Protein DataBank

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Protein Data Bank Entry:

1kwq

2.600 Å

X-ray

2002-01-30

Interactomes:
Molecular Function:
Binding Site :

Uniprot Annotation

Name:Carbonic anhydrase 2
ID:CAH2_HUMAN
AC:P00918
Organism:Homo sapiens
Reign:Eukaryota
TaxID:9606
EC Number:4.2.1.1


Chains:

Chain Name:Percentage of Residues
within binding site
A100 %


Ligand binding site composition:

B-Factor:5.906
Number of residues:24
Including
Standard Amino Acids: 23
Non Standard Amino Acids: 1
Water Molecules: 0
Cofactors:
Metals: ZN

Cavity properties

LigandabilityVolume (Å3)
0.507347.625

% Hydrophobic% Polar
45.6354.37
According to VolSite

Ligand :
1kwq_1 Structure
HET Code: SG1
Formula: C10H11N3O5S
Molecular weight: 285.276 g/mol
DrugBank ID: DB04394
Buried Surface Area:60.78 %
Polar Surface area: 134.66 Å2
Number of
H-Bond Acceptors: 5
H-Bond Donors: 1
Rings: 2
Aromatic rings: 1
Anionic atoms: 1
Cationic atoms: 1
Rule of Five Violation: 0
Rotatable Bonds: 3

Mass center Coordinates

XYZ
-4.754954.0316314.7075


Binding mode :
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Binding mode
BioSolveIT Image generated by PoseView
Protein
Binding Site
Ligand
Interaction pattern
hydrophobic (CA)
aromatic (CZ)
hydrogen bond acceptor (O)
hydrogen bond acceptor/donor (OG)
hydrogen bond donor (N)
positively ionized (NZ)
negatively ionized (OD1)
metal (ZN)

Legend:

Represent the protein/ligand binding mode, centered on the ligand
Dashed lines represents hydrogen bonds and metal interactions
Green residue labels for amino acids with hydrophobic contacts (green lines) to the ligand

Image generated using PoseView by BioSolveIT
BioSolveIT


LigandProteinInteraction
AtomAtomResidueDistance
(Å)
Angle (°)Type
C16CG2VAL- 1213.890Hydrophobic
C10CE2PHE- 1314.390Hydrophobic
C3CBLEU- 1984.430Hydrophobic
C16CD2LEU- 1983.670Hydrophobic
N17OG1THR- 1993163.47H-Bond
(Ligand Donor)
O19NTHR- 1992.98148.47H-Bond
(Protein Donor)
C3CG2THR- 2003.950Hydrophobic
C4CBTHR- 2004.350Hydrophobic
N17ZN ZN- 2622.090Metal Acceptor