3DCR image
Entry Detail
PDB ID:
3DCR
Keywords:
HYDROLASE/HYDROLASE INHIBITOR
Title:
X-ray structure of HIV-1 protease and hydrated form of ketomethylene isostere inhibitor
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2008-06-04
Release Date:
2008-08-19
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.40 Å
R-Value Free:
0.21
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 21 21 21
3DCR validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:Chemical analogue HIV-1 protease
Chain IDs:A, B
Chain Length:99
Number of Molecules:2
Biological Source:
UniProt ID:O38732 Pfam ID:PF00077
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
ABA A ALA ALPHA-AMINOBUTYRIC ACID
NLE A LEU NORLEUCINE
YCM A CYS S-(2-AMINO-2-OXOETHYL)-L-CYSTEINE
Ligand Molecules
KVS
Peptide-like Molecules
PRD_001037
Primary Citation
Crystal structure of chemically synthesized HIV-1 protease and a ketomethylene isostere inhibitor based on the p2/NC cleavage site
Bioorg.Med.Chem.Lett. 18 4554 4557 (2008)
PMID: 18657969 DOI: 10.1016/j.bmcl.2008.07.039

Abstact

Here we report the X-ray structures of chemically synthesized HIV-1 protease and the inactive [D25N]HIV-1 protease complexed with the ketomethylene isostere inhibitor Ac-Thr-Ile-Nle psi[CO-CH(2)]Nle-Gln-Arg.amide at 1.4 and 1.8A resolution, respectively. In complex with the active enzyme, the keto-group was found to be converted into the hydrated gem-diol, while the structure of the complex with the inactive D25N enzyme revealed an intact keto-group. These data support the general acid-general base mechanism for HIV-1 protease catalysis.

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Protein

Chemical

Disease

Primary Citation of related structures
3DCK