Cloning of the human homolog of conductin (AXIN2), a gene mapping to chromosome 17q23-q24

Mai Ming, Chiping Qian, Akira Yokomizo, David I. Smith, Liu Wanguo

Research output: Contribution to journalArticle

54 Scopus citations

Abstract

Conductin or Axil, an Axin homolog, plays an important role in the regulation of β-catenin stability in the Wnt signaling pathway. To facilitate the molecular analysis of the human gene, we isolated the human homolog, AXIN2. The cDNA contains a 2529-bp open reading frame and encodes a putative protein of 843 amino acids. Compared with rat and mouse homologs, AXIN2 shows an overall 89% amino acid identity. Several functional domains in this protein are highly conserved including the GRS (95.9%), GSK-3β (96.3%), Dsh (98%), and β-catenin (89.9%) domains. Radiation hybrid mapping localized the AXIN2 gene to human chromosome 17q23-q24, a region that shows frequent loss of heterozygosity in breast cancer, neuroblastoma, and other tumors. Human AXIN2 is thus a very strong candidate involved in multiple tumor types.

Original languageEnglish (US)
Pages (from-to)341-344
Number of pages4
JournalGenomics
Volume55
Issue number3
DOIs
StatePublished - Feb 1 1999

ASJC Scopus subject areas

  • Genetics

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