2IT4 image
Deposition Date 2006-10-19
Release Date 2007-09-11
Last Version Date 2023-08-30
Entry Detail
PDB ID:
2IT4
Keywords:
LYASE
Title:
X ray structure of the complex between Carbonic Anhydrase I and the phosphonate antiviral drug foscarnet
Biological Source:
Source Organism(s):
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.00 Å
R-Value Free:
0.31
R-Value Work:
0.24
R-Value Observed:
0.24
Space Group:
P 21 21 21
2IT4 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Carbonic anhydrase 1
Gene (Uniprot):CA1
Chain IDs:A, B
Chain Length:256
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:P00915 Pfam ID:PF00194 EC:4.2.1.1
Ligand Molecules
PPF
ZN
Primary Citation
Phosph(on)ate as a zinc-binding group in metalloenzyme inhibitors: X-ray crystal structure of the antiviral drug foscarnet complexed to human carbonic anhydrase I.
Bioorg.Med.Chem.Lett. 17 2210 2215 (2007)
PMID: 17314045 DOI: 10.1016/j.bmcl.2007.01.113

Abstact

Foscarnet (phosphonoformate trisodium salt), an antiviral used for the treatment of HIV and herpes virus infections, also acts as an activator or inhibitor of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). Interaction of the drug with 11 CA isozymes has been investigated kinetically, and the X-ray structure of its adduct with isoform I (hCA I-foscarnet complex) has been resolved. The first CA inhibitor possessing a phosphonate zinc-binding group is thus evidenced, together with the factors governing recognition of such small molecules by a metalloenzyme active site. Foscarnet is also a clear-cut example of modulator of an enzyme activity which can act either as an activator or inhibitor of a CA isozyme.

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Primary Citation of related structures
2IT4
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