Conservation of structure and expression of the c-yes and fyn genes in lower vertebrates.
Year: 1991
Type: article
Abstract: The src-gene family in mammals and birds consists of 9 closely related protein tyrosine kinases. We have cloned the c-yes and fyn homologues of the src-family from the teleost fish Xiphophorus helleri. Both genes show a high degree of sequence conservation and exhibit all structural motifs diagnostic for functional src-like protein tyrosine kinases. Sequence comparisons revealed three domains (exon 2, exons 3-6, exons 7-12) which evolve at different rates. Both genes exhibit an identical expression pattern, with preferential expression in neural tissues. No transcripts of c-yes were found in liver which is contrary to the situation in higher vertebrates. In malignant melanoma, elevated levels of c-yes and fyn were detected indicating a possible function during secondary steps of tumor progression for src-related tyrosine kinases.
Source: PubMed
Authors: G Hannig, S Ottilie, M Schartl
Institution: Max Planck Institute of Biochemistry
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W2188173681