Identification of a novel gene (ADPRTL1) encoding a potential poly(ADP- ribosyl)transferase protein

Ivan H. Still, Pauline Vince, John Kenneth Cowell

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Poly(ADP-ribosyl)ation of nuclear proteins plays a significant role in the maintenance of genomic DNA stability. To date, four poly(ADP- ribosyl)ating proteins have been identified in humans. We now report the full-length sequence, expression profile, and chromosomal localization of a novel gene, ADPRTL1, encoding an ADP-ribosyltransferase-like protein. The predicted open reading frame encodes a protein of 1724 amino acids with a molecular mass of 192.8 kDa. The protein contains a region showing homology to the catalytic domains of the nuclear-localized ADP-ribosyltransferase proteins (Adprt), two recently identified Adprt-like proteins (Adprt12 and Adprt13), and the telomere-associated protein tankyrase. Key amino acids known to be important for the activity of these enzymes are conserved within this region of the Adprtl1 protein, indicating that Adprtl1 is a functional poly(ADP-ribosyl)transferase. As has been noted for tankyrase, sequence analysis of the Adprtl1 protein suggests that it is not capable of binding DNA directly. Thus, the transferase activity of Adprtl1 may be activated by other factors such as protein-protein interaction mediated by the extensive carboxyl terminus. We have subsequently refined the location of the ADPRTL1 genomic locus to 13q11, close to the recently cloned ZNF198 gene. (C) 1999 Academic Press.

Original languageEnglish (US)
Pages (from-to)533-536
Number of pages4
JournalGenomics
Volume62
Issue number3
DOIs
StatePublished - Dec 15 1999
Externally publishedYes

Fingerprint

Transferases
Genes
ADP Ribose Transferases
Proteins
Tankyrases
Adenosine Diphosphate
poly(ADP)-ribosylated proteins
Amino Acids
Genomic Instability
DNA
Protein Sequence Analysis
Telomere
Nuclear Proteins
Open Reading Frames
Catalytic Domain
Maintenance
Enzymes

ASJC Scopus subject areas

  • Genetics

Cite this

Identification of a novel gene (ADPRTL1) encoding a potential poly(ADP- ribosyl)transferase protein. / Still, Ivan H.; Vince, Pauline; Cowell, John Kenneth.

In: Genomics, Vol. 62, No. 3, 15.12.1999, p. 533-536.

Research output: Contribution to journalArticle

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