Biology Faculty Articles

Title

Gene for T-Cell Growth Factor: Location on Human Chromosome 4q and Feline Chromosome B1

Document Type

Article

Publication Date

1-13-1984

Publication Title

Science

ISSN

0036-8075

Volume

223

Issue/No.

4632

First Page

175

Last Page

178

Abstract

T-cell growth factor (TCGF) or interleukin-2 (IL-2), an immunoregulatory lymphokine, is produced by lectin- or antigen-activated mature T lymphocytes and in a constitutive manner by certain T-cell lymphoma cell lines. By means of a molecular clone of human TCGF and DNA extracted from a panel of somatic cell hybrids (rodent cells x normal human lymphocytes), the TCGF structural gene was identified on human chromosome 4. In situ hybridization of the TCGF clone to human chromosomes resulted in significant labeling of the midportion of the long arm of chromosome 4, indicating that the TCGF gene was located at band q26-28. Genomic DNA from a panel of hybrids prepared with HUT-102 B2 cells was examined with the same molecular clone. In this clone of cells, which produces human T-cell leukemia virus, the TCGF gene was also located on chromosome 4 and was apparently not rearranged. The homologous TCGF locus in the domestic cat was assigned to chromosome B1 by using a somatic cell hybrid panel that segregates cat chromosomes. Linkage studies as well as high-resolution G-trypsin banding indicate that this feline chromosome is partially homologous to human chromosome 4.

Comments

©1984 American Association for the Advancement of Science

ORCID ID

0000-0001-7353-8301

ResearcherID

N-1726-2015

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