title: Characterization and chromosome assignment of the human homolog of int-2, a potential proto-oncogene.
abstract: int-2 is one of two cellular genes (int-1 and int-2) currently implicated in the genesis of mammary carcinomas by mouse mammary tumor virus and may constitute a novel cellular proto-oncogene. Using low-stringency hybridization with mouse int-2 probes, we established that homologous genes exist in a variety of mammalian species, including humans, but failed to detect related sequences in other classes and phyla. Recombinant bacteriophage clones and a single cosmid encompassing the human int-2 gene were isolated and characterized by restriction enzyme mapping. A survey of nine primary human breast tumors, three breast tumor cell lines, and three normal individuals revealed no evidence for gross amplification or rearrangement of the int-2 locus. Three distinct restriction fragment length polymorphisms were observed which could prove useful in future linkage studies. By a combination of in situ hybridization of metaphase chromosomes and somatic cell genetics, the human int-2 gene was mapped to chromosome 11, band q13.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D002874:Chromosome Mapping; D002880:Chromosomes, Human, Pair 11; D003001:Cloning, Molecular; D004247:DNA / Q000032:analysis; D004262:DNA Restriction Enzymes; D006801:Humans; D051379:Mice; D009693:Nucleic Acid Hybridization; D000090063:Proto-Oncogene Mas; D011519:Proto-Oncogenes; D012689:Sequence Homology, Nucleic Acid
chemical_list: C000715470:MAS1 protein, human; D000090063:Proto-Oncogene Mas; D004247:DNA; D004262:DNA Restriction Enzymes