5oym

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HIV Integrase Binding Domain of Lens Epithelium-Derived Growth FactorHIV Integrase Binding Domain of Lens Epithelium-Derived Growth Factor

Structural highlights

5oym is a 8 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.05Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

PSIP1_HUMAN Note=A chromosomal aberration involving PSIP1 is associated with pediatric acute myeloid leukemia (AML) with intermediate characteristics between M2-M3 French-American-British (FAB) subtypes. Translocation t(9;11)(p22;p15) with NUP98. The chimeric transcript is an in-frame fusion of NUP98 exon 8 to PSIP1/LEDGF exon 4.

Function

PSIP1_HUMAN Transcriptional coactivator involved in neuroepithelial stem cell differentiation and neurogenesis. Involved in particular in lens epithelial cell gene regulation and stress responses. May play an important role in lens epithelial to fiber cell terminal differentiation. May play a protective role during stress-induced apoptosis. Isoform 2 is a more general and stronger transcriptional coactivator. Isoform 2 may also act as an adapter to coordinate pre-mRNA splicing. Cellular cofactor for lentiviral integration.[1]

Publication Abstract from PubMed

Lens epithelium-derived growth factor (LEDGF)/p75 is the dominant binding partner of HIV-1 integrase in human cells. The crystal structure of the HIV integrase-binding domain (IBD) of LEDGF has been determined in the absence of ligand. IBD was overexpressed in Escherichia coli, purified and crystallized by sitting-drop vapour diffusion. X-ray diffraction data were collected at Diamond Light Source to a resolution of 2.05 A. The crystals belonged to space group P21, with eight polypeptide chains in the asymmetric unit arranged as an unusual octamer composed of four domain-swapped IBD dimers. IBD exists as a mixture of monomers and dimers in concentrated solutions, but the dimers are unlikely to be biologically relevant.

Cloning, purification and structure determination of the HIV integrase-binding domain of lens epithelium-derived growth factor.,Hannon C, Cruz-Migoni A, Platonova O, Owen RL, Nettleship JE, Miller A, Carr SB, Harris G, Rabbitts TH, Phillips SEV Acta Crystallogr F Struct Biol Commun. 2018 Mar 1;74(Pt 3):143-149. doi:, 10.1107/S2053230X18001553. Epub 2018 Feb 26. PMID:29497017[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Chylack LT Jr, Fu L, Mancini R, Martin-Rehrmann MD, Saunders AJ, Konopka G, Tian D, Hedley-Whyte ET, Folkerth RD, Goldstein LE. Lens epithelium-derived growth factor (LEDGF/p75) expression in fetal and adult human brain. Exp Eye Res. 2004 Dec;79(6):941-8. PMID:15642333 doi:S0014-4835(04)00250-7
  2. Hannon C, Cruz-Migoni A, Platonova O, Owen RL, Nettleship JE, Miller A, Carr SB, Harris G, Rabbitts TH, Phillips SEV. Cloning, purification and structure determination of the HIV integrase-binding domain of lens epithelium-derived growth factor. Acta Crystallogr F Struct Biol Commun. 2018 Mar 1;74(Pt 3):143-149. doi:, 10.1107/S2053230X18001553. Epub 2018 Feb 26. PMID:29497017 doi:http://dx.doi.org/10.1107/S2053230X18001553

5oym, resolution 2.05Å

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