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Cloning and chromosomal assignment of a human cDNA encoding a T cell- and natural killer cell-specific trypsin-like serine protease

Journal Article · · Proc. Natl. Acad. Sci. U.S.A.; (United States)
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A cDNA clone encoding a human T cell- and natural killer cell-specific serine protease was obtained by screening a phage lambdagt10 cDNA library from phytohemagglutinin-stimulated human peripheral blood lymphocytes with the mouse Hanukah factor cDNA clone. In an RNA blot-hybridization analysis, this human Hanukah factor cDNA hybridized with a 1.3-kilobase band in allogeneic-stimulated cytotoxic T cells and the Jurkat cell line, but this transcript was not detectable in normal muscle, liver, tonsil, or thymus. By dot-blot hybridization, this cDNA hybridized with RNA from three cytolytic T-cell clones and three noncytolytic T-cell clones grown in vitro as well as with purified CD16/sup +/ natural killer cells and CD3/sup +/, CD16/sup -/ T-cell large granular lymphocytes from peripheral blood lymphocytes (CD = cluster designation). The nucleotide sequence of this cDNA clone encodes a predicted serine protease of 262 amino acids. The active enzyme is 71% and 77% similar to the mouse sequence at the amino acid and DNA level, respectively. The human and mouse sequences conserve the active site residues of serine proteases--the trypsin-specific Asp-189 and all 10 cysteine residues. The gene for the human Hanukah factor serine protease is located on human chromosome 5. The authors propose that this trypsin-like serine protease may function as a common component necessary for lysis of target cells by cytotoxic T lymphocytes and natural killer cells.

Research Organization:
Stanford Univ. School of Medicine, CA (USA)
OSTI ID:
6879595
Journal Information:
Proc. Natl. Acad. Sci. U.S.A.; (United States), Journal Name: Proc. Natl. Acad. Sci. U.S.A.; (United States) Vol. 85:4; ISSN PNASA
Country of Publication:
United States
Language:
English

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Related Subjects

550201* -- Biochemistry-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ANIMAL CELLS
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY
BODY FLUIDS
CLONING
CONNECTIVE TISSUE CELLS
DAYS LIVING RADIOISOTOPES
DIGESTIVE SYSTEM
DNA
DNA HYBRIDIZATION
DNA SEQUENCING
DNA-CLONING
ENZYMES
GENETIC MAPPING
GLANDS
HYBRIDIZATION
HYDROLASES
ISOTOPES
LEUKOCYTES
LIGHT NUCLEI
LIVER
LYMPHATIC SYSTEM
LYMPHOCYTES
MAMMALS
MAN
MAPPING
MATERIALS
MESSENGER-RNA
MOLECULAR STRUCTURE
MUSCLES
NUCLEI
NUCLEIC ACIDS
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANS
PEPTIDE HYDROLASES
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
PRIMATES
RADIOISOTOPES
RECOMBINANT DNA
RNA
SERINE PROTEINASES
SOMATIC CELLS
STRUCTURAL CHEMICAL ANALYSIS
THYMUS
TRYPSIN
VERTEBRATES