1d4u

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Template:STRUCTURE 1d4u

Contents

INTERACTIONS OF HUMAN NUCLEOTIDE EXCISION REPAIR PROTEIN XPA WITH RPA70 AND DNA: CHEMICAL SHIFT MAPPING AND 15N NMR RELAXATION STUDIES

Template:ABSTRACT PUBMED 10563794

Disease

[XPA_HUMAN] Defects in XPA are a cause of xeroderma pigmentosum complementation group A (XP-A) [MIM:278700]; also known as xeroderma pigmentosum type 1 (XP1). XP-A is a rare human autosomal recessive disease characterized by solar sensitivity, high predisposition for developing cancers on areas exposed to sunlight and, in some cases, neurological abnormalities. Group A patients show the most severe skin symptoms and progressive neurological disorders.[1][2][3]

Function

[XPA_HUMAN] Involved in DNA excision repair. Initiates repair by binding to damaged sites with various affinities, depending on the photoproduct and the transcriptional state of the region. Required for UV-induced CHEK1 phosphorylation and the recruitment of CEP164 to cyclobutane pyrimidine dimmers (CPD), sites of DNA damage after UV irradiation.[4]

About this Structure

1d4u is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA.

Reference

  • Buchko GW, Daughdrill GW, de Lorimier R, Rao B K, Isern NG, Lingbeck JM, Taylor JS, Wold MS, Gochin M, Spicer LD, Lowry DF, Kennedy MA. Interactions of human nucleotide excision repair protein XPA with DNA and RPA70 Delta C327: chemical shift mapping and 15N NMR relaxation studies. Biochemistry. 1999 Nov 16;38(46):15116-28. PMID:10563794
  1. ↑ Satokata I, Tanaka K, Okada Y. Molecular basis of group A xeroderma pigmentosum: a missense mutation and two deletions located in a zinc finger consensus sequence of the XPAC gene. Hum Genet. 1992 Mar;88(6):603-7. PMID:1339397
  2. ↑ Satokata I, Tanaka K, Yuba S, Okada Y. Identification of splicing mutations of the last nucleotides of exons, a nonsense mutation, and a missense mutation of the XPAC gene as causes of group A xeroderma pigmentosum. Mutat Res. 1992 Mar;273(2):203-12. PMID:1372103
  3. ↑ States JC, McDuffie ER, Myrand SP, McDowell M, Cleaver JE. Distribution of mutations in the human xeroderma pigmentosum group A gene and their relationships to the functional regions of the DNA damage recognition protein. Hum Mutat. 1998;12(2):103-13. PMID:9671271 doi:<103::AID-HUMU5>3.0.CO;2-6 10.1002/(SICI)1098-1004(1998)12:2<103::AID-HUMU5>3.0.CO;2-6
  4. ↑ Pan YR, Lee EY. UV-dependent interaction between Cep164 and XPA mediates localization of Cep164 at sites of DNA damage and UV sensitivity. Cell Cycle. 2009 Feb 15;8(4):655-64. Epub 2009 Feb 14. PMID:19197159

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