ISDA: 3KT5

Deposition Date 2009-11-24

Release Date 2010-02-16

Last Version Date 2024-05-29

Entry Detail

PDB ID:

3KT5

Keywords:

HYDROLASE

Title:

Crystal Structure of N88S mutant HIV-1 Protease

Biological Source:

Source Organism:

Human immunodeficiency virus type 1 (Taxon ID: 11706)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.80 Å

R-Value Free:

0.22

R-Value Work:

0.17

R-Value Observed:

0.18

Space Group:

P 61

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Protease
Gene (Uniprot):gag-pol
Mutagens:N88S, C95A, N1088S, C1095A
Chain IDs:A
Chain Length:203
Number of Molecules:1
Biological Source:Human immunodeficiency virus type 1

UniProt ID:P04585 Pfam ID:PF00077

Primary Citation

Resistance mechanism revealed by crystal structures of unliganded nelfinavir-resistant HIV-1 protease non-active site mutants N88D and N88S.

Bihani, S.C, Das, A, Prashar, V, Ferrer, J.L, Hosur, M.V.Show

Biochem.Biophys.Res.Commun. 389 295 300 (2009)

PMID: 19720046 DOI: 10.1016/j.bbrc.2009.08.138

Abstact

Nelfinavir is an inhibitor of HIV-1 protease, and is used for treatment of patients suffering from HIV/AIDS. However, treatment results in drug resistant mutations in HIV-1 protease. N88D and N88S are two such mutations which occur in the non-active site region of the enzyme. We have determined crystal structures of unliganded N88D and N88S mutants of HIV-1 protease to resolution of 1.65A and 1.8A, respectively. These structures refined against synchrotron data lead to R-factors of 0.1859 and 0.1780, respectively. While structural effects of N88D are very subtle, the mutation N88S has caused a significant conformational change in D30, an active site residue crucial for substrate and inhibitor binding.

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Abstact

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