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Cloning of BSK, a murine FRK homologue with a specific pattern of tissue distribution.
1995 (English)In: Gene, ISSN 0378-1119, E-ISSN 1879-0038, Vol. 152, no 2, 239-42 p.Article in journal (Refereed) Published
Abstract [en]

A novel protein tyrosine kinase (PTK) was previously identified by us from the rat insulin-producing cell line, RINm5F, by polymerase chain reaction (PCR). By using this PCR fragment to screen a cDNA library from the mouse insulin-producing cell line beta TC-1, a cDNA clone of about 2.0 kb was obtained which encodes the entire amino acid (aa) sequence of the corresponding PTK. The deduced aa sequence reveals strong homology with the members of the SRC family of intracellular PTKs. We have designated the gene as BSK (beta-cell Src-homology tyrosine kinase). Southern blot analysis after PCR with primers specific for BSK confirmed its expression in fetal and adult islets of Langerhans, in RINm5F cells and in mouse kidney. Northern blots using poly(A)+RNA from non-beta-cell tissues showed that the BSK cDNA hybridized to three mRNA transcripts (2.9, 3.1 and 5.0 kb) present in kidney, liver and lung. Extensive homology of BSK with the recently identified human gene FRK was observed. It is concluded that Bsk is a murine Frk homologue with a specific pattern of tissue expression.

Place, publisher, year, edition, pages
1995. Vol. 152, no 2, 239-42 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-143557PubMedID: 7835707OAI: oai:DiVA.org:uu-143557DiVA: diva2:390432
Available from: 2011-01-21 Created: 2011-01-21 Last updated: 2013-02-06

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