ArticleImmunogenetics1996
Cloning and expression of the recombinant mouse natural killer cell granzyme Met-ase-1.
Article in Immunogenetics, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 27 citations in OpenAlex.
- Identification and annotation of bovine granzyme genes reveals a novel granzyme encoded within the trypsin-like locus.Immunogenetics · 2018Article
- Granzyme M: behind enemy lines.Cell death and differentiation · 2014Review
- Molecular characterization and expression of a granzyme of an ectothermic vertebrate with chymase-like activity expressed in the cytotoxic cells of Nile tilapia (Oreochromis niloticus).Immunogenetics · 2006Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Met-ase-1 is a 30 000 Mr serine protease (granzyme) that was first isolated in the cytolytic granules of rat CD3(-) large granular lymphocytes. We screened a mouse genomic library with rat Met-ase-1 cDNA, and obtained bacteriophage clones that contained the mouse Met-ase-1 gene. The mouse Met-ase-1 gene comprises five exons spanning approximately 5.2 kilobases (kb) and exhibits a similar structural organization to its rat homologue and a family of neutrophil elastase-like serine proteases. Mouse Met-ase-1 mRNA was only detected in total cellular and poly A mRNA of mouse CD3(-) GM1(+) large granular lymphocytes derived from splenocytes stimulated with IL-2 and the mouse NK1.1(+) cell line 4 - 16. Spleen T-cell populations generated by Concanavalin A stimulation and a number of mouse pre-NK and T cell lines did not express mouse Met-ase-1 mRNA. The 5' flanking region of the mouse Met-ase-1 gene also shares considerable regions of identity with the 5' flanking region of the rat Met-ase-1 gene. A 3.3 kb segment of 5' sequence flanking the mouse Met-ase-1 gene was inserted upstream of the chloramphenicol acetyltransferase reporter gene and this construct transiently transfected into a variety of mouse and rat large granular lymphocyte leukemia and T-cell lines. The transcriptional activity of the mouse Met-ase-1 5' flanking region was significant in the RNK-16 large granular lymphocyte leukemia, strongest in the 4 - 16 mouse NK1.1(+) cell line, and weak in several mouse pre-NK cell lines. Reverse transcriptase polymerase chain reaction of mouse large granular lymphocyte mRNA was used to derive the full-length coding sequence for mouse Met-ase-1. The predicted hexapropeptide of mouse Met-ase-1 (Asn-6 to Gln-1), was deleted by polymerase chain reaction mutagenesis to enable expression of active mouse Met-ase-1 in mammalian COS-7 cells. Northern blot analysis and protease assays of transfected COS cell lysates against a panel of thiobenzyl ester substrates formally demonstrated that the mouse Met-ase-1 gene encodes a serine proteinase that hydrolyzes substrates containing a long narrow hydrophobic amino acids like methionine, norleucine, and leucine in the P1.
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