Fyn

 No overt phenotype
 Normal paired pulse facilitation and post-tetanic potentiation
 Markedly reduced calcium fluxes and abrogated proliferation of thymocytes in response to TCR-CD3 cross-linking
 Reduced proliferation in thymoctes in response to Thy-1 cross-linking
 Largely normal proliferation of mature splenic T cells in response to TCR-CD3 cross-linking
 No reduction in proliferation induced by Thy-1 cross-linking in splenic T cells
 Blunted long-term potentiation
 Impaired spatial learning
 Increased number of granule cells in the dentate gyrus
 Increased number of pyramidal cells in the CA3 region
 Impaired suckling behavior
 Modified glomerular complex of the olfactory bulb
 Undulated hippocampal cell-layer

Grant et al., 1992
Stein et al., 1992
Yagi et al., 1993


fyn, thymic isoform


 Normal maturation sequence in peripheral T cells in response to stimulation of the TCR with mitogen or antigen
 Lack of response of thymocytes to stimulation of the TCR with mitogen or antigen

Appleby et al., 1992


Fyn


 Hypophosphorylation of nine proteins
 Reduced Focal adhesion kinase (FAK) activity
 FAK expressed in high levels in brain
 FAK not restricted to focal adhesion contacts
 FAK found in axons, dendrites, and intermediate filament cytoskeleton of astrocytes
 Compensatory change in Src Family kinase activity found in brain extracts

Grant, 1995
Focal adhesion kinase in the brain: novel subcellular localization and specific regulation by Fyn tyrosine kinase in mutant mice.
Genes Dev 9, 1909-1921 (1995) [95377641]
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METHODOLOGY ( FROM T-BASE)

((fyn))

Line Name DNA Construct
1. Fyn (+/-) Fyn-kinase-deficient mice were generated by replacing the SH2, SH3 and tyrosine kinase regions of fyn by lacZ. The targeting vector, pHFZpr-NeoDT, (G00-373-378) was ass....
2. Fyn(z) (+/-) In the fyn mutant mice the lacZ gene was inserted into exon 3 (fyn(z)) so that beta-galactosidase (beta-Gal) was expressed as a fusion protein with the Fyn unique region....
3. fyn (LacZ/neo) (+/- The LacZ gene was inserted into exon 3 in the in-frame so that it was expressed as the fusion protein with the Fyn-N-terminal region (a.a. 1-110); the region includes t....
4. fyn (LacZ/neo (-/-) The LacZ gene was inserted into exon 3 in the in-frame so that it was expressed as the fusion protein with the Fyn-N-terminal region (a.a. 1-110); the region includes t....
5. Fyn(z) (-/-) In the fyn mutant mice the lacZ gene was inserted into exon 3 (fyn(z)) so that beta-galactosidase (beta-Gal) was expressed as a fusion protein with the Fyn unique region....
6. Fyn (-/-) Fyn-kinase-deficient mice were generated by replacing the SH2, SH3 and tyrosine kinase regions of fyn by lacZ. The targeting vector, pHFZpr-NeoDT, (G00-373-378) was ass....


Database links

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