NR AGXA
AU Kuramoto,T.; Mori,M.; Yamada,J.; Serikawa,T.
TI Tremor and zitter, causative mutant genes for epilepsy with spongiform encephalopathy in spontaneously epileptic rat (SER), are tightly linked to synaptobrevin-2 and prion protein genes, respectively
QU Biochemical and Biophysical Research Communications 1994 Apr 29; 200(2): 1161-8
PT journal article
AB Spontaneously epileptic rat (SER) is a homozygote for both tremor (tm) and zitter (zi) genes and exhibits epilepsy-like seizures and spongiform encephalopathy. Genetic linkage analyses revealed that the tm and zi loci were tightly linked to the synaptobrevin-2 (Syb2) on chromosome 10 and the prion protein (Prnp) on chromosome 3, respectively. The genomic DNA sequences of Syb2 of the tm/tm (TRM) rats and exon 2 of the Prnp of the zi/zi (ZI) rats were identical to those of a control rat strain WTC. In addition, no difference was detected for expression of the Syb2 and Prnp on the Northern blot analyses of TRM, ZI and WTC brain, suggesting that the Syb2 and Prnp genes are not the tm and zi, respectively. The assignments of tm and zi to rat chromosome 10q24 and 3q35, however, will be the first step towards the positional cloning of the genes.
IN Das Tremorgen und das Zittergen spontan epileptischer Ratten liegen nahe beim Gen für Synaptobrevin auf Chromosom 10 bzw. dem Prionproteingen auf Chromosom 3, ohne mit diesen identisch zu sein.
MH Animal; Base Sequence; Chromosome Mapping; DNA/genetics; Disease Models, Animal; Epilepsy/complications/*genetics; Female; Gene Expression; Homozygote; Linkage (Genetics); Male; Membrane Proteins/*genetics; Molecular Sequence Data; Mutation; Nerve Tissue Proteins/*genetics; Prion Diseases/complications/*genetics; Prions/*genetics; Rats; Rats, Inbred ACI; Rats, Inbred BN; Rats, Mutant Strains; Support, Non-U.S. Gov't
AD Institute of Laboratory Animals, Faculty of Medicine, Kyoto University, Japan.
SP englisch
PO USA