1z9e
From Proteopedia
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| Gene: | PSIP1 (Homo sapiens) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Solution structure of the HIV-1 integrase-binding domain in LEDGF/p75
Overview
Lens epithelium-derived growth factor (LEDGF)/p75 is the dominant binding partner of HIV-1 integrase (IN) in human cells. We have determined the NMR structure of the integrase-binding domain (IBD) in LEDGF and identified amino acid residues essential for the interaction. The IBD is a compact right-handed bundle composed of five alpha-helices. Based on folding topology, the IBD is structurally related to a diverse family of alpha-helical proteins that includes eukaryotic translation initiation factor eIF4G and karyopherin-beta. LEDGF residues essential for the interaction with IN were localized to interhelical loop regions of the bundle structure. Interaction-defective IN mutants were previously shown to cripple replication although they retained catalytic function. The initial structure determination of a host cell factor that tightly binds to a retroviral enzyme lays the groundwork for understanding enzyme-host interactions important for viral replication.
About this Structure
1Z9E is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Solution structure of the HIV-1 integrase-binding domain in LEDGF/p75., Cherepanov P, Sun ZY, Rahman S, Maertens G, Wagner G, Engelman A, Nat Struct Mol Biol. 2005 Jun;12(6):526-32. Epub 2005 May 15. PMID:15895093
Page seeded by OCA on Thu Mar 20 15:32:45 2008
