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PMID: 2300587 Published · ppublish English Journal Article Research Support, U.S. Gov't, P.H.S.

A cluster of hematopoietic serine protease genes is found on the same chromosomal band as the human alpha/delta T-cell receptor locus.

Hanson RD, Hohn PA, Popescu NC, Ley TJ

Abstract

The chymotrypsin-like family of serine protease genes includes several members that are expressed exclusively in subsets of hematopoietic cells. For example, human neutrophil elastase and cathepsin G are expressed only in myelomonocytic precursors, and cytotoxic-T-cell serine proteases are found only in cytotoxic lymphocytes. We have used a cathepsin G cDNA probe to clone two cathepsin G-like genes (designated CGL-1 and CGL-2) from a human genomic library. We have determined that CGL-1 is identical to a previously identified gene (known as CCPI, CTLA I, or cytotoxic serine protease B) that is expressed only in activated cytotoxic T lymphocytes. We show here that cathepsin G, CGL-1, and CGL-2 are linked on an approximately 50-kilobase locus found on human chromosome 14 at band q11.2. This gene cluster maps to the same chromosomal band as the alpha and delta T-cell receptor genes; this region is involved in most chromosomal translocations and inversions that are specifically associated with T-cell malignancies.

MeSH Terms
Blotting, Southern Cathepsin G Cathepsins/genetics Chromosome Banding Chromosome Mapping Chromosomes, Human, Pair 14 Cosmids Genetic Linkage Genome, Human Hematopoietic Stem Cells/enzymology Humans Macromolecular Substances Receptors, Antigen, T-Cell/genetics Restriction Mapping Serine Endopeptidases/genetics
Chemicals
Macromolecular Substances Receptors, Antigen, T-Cell Cathepsins Serine Endopeptidases CTSG protein, human Cathepsin G
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Hanson R D
Department of Medicine, Jewish Hospital at Washington University Medical Center, St. Louis, MO 63110.
Hohn P A
Popescu N C
Ley T J
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
Published
1990-02-00
Pages
960-3
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC53389
Subset
IM
Grants
NCI NIH HHS · CA49712 · United States
NIDDK NIH HHS · DK38682 · United States
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