RGD Reference Report - A human c-erbA oncogene homologue is closely proximal to the chromosome 17 breakpoint in acute promyelocytic leukemia. - Rat Genome Database

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A human c-erbA oncogene homologue is closely proximal to the chromosome 17 breakpoint in acute promyelocytic leukemia.

Authors: Dayton, AI  Selden, JR  Laws, G  Dorney, DJ  Finan, J  Tripputi, P  Emanuel, BS  Rovera, G  Nowell, PC  Croce, CM 
Citation: Dayton AI, etal., Proc Natl Acad Sci U S A. 1984 Jul;81(14):4495-9.
RGD ID: 1580116
Pubmed: PMID:6589608   (View Abstract at PubMed)
PMCID: PMC345617   (View Article at PubMed Central)

A human cDNA library was screened for sequences homologous to the erbA gene of avian erythroblastosis virus (AEV). One such clone, cHerbA-1, was used to map the chromosomal location of highly homologous human sequences that were found to be present on chromosome 17 as judged by Southern blot screening of a panel of mouse-human hybrid cell lines segregating human chromosomes. cHerbA-1 was hybridized in situ to metaphase chromosomes from a normal male subject and from a female patient with an acute promyelocytic leukemia (APL) having the typical t(15;17) translocation. The results localized the cellular c-erbA sequences on chromosome 17 to the q21-q24 region of normal chromosomes and indicated that the c-erbA sequences remained on the 17q- chromosome in the APL cells, suggesting that they could be assigned to the 17(q21-q22) region. For additional data, we hybridized human neoplastic cells derived from a poorly differentiated acute leukemia carrying a t(17;21) translocation with thymidine kinase (TK)-deficient LMTK- mouse cells. A resulting hybrid, containing only the 21q+ chromosome, did not have human c-erbA sequences. Since the breakpoint on 17q in this translocation was similar to that in the APL t(15;17) translocation, this supported the assignment of c-erbA to the q21-q22 region of chromosome 17. The apparent close proximity of the c-erbA sequences to the chromosomal breakpoints in these two leukemias suggests a possible role for this oncogene homologue in the development of these neoplasms.

Objects referenced in this article
Gene THRA thyroid hormone receptor alpha Homo sapiens
Gene Thra thyroid hormone receptor alpha Mus musculus
Gene Thra thyroid hormone receptor alpha Rattus norvegicus

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