Expression pattern and functional analysis of mouse Stam2 in the olfactory system.

Gene trap mutant mice Stam(gt1Gaj) were investigated in order to elucidate in vivo function of Stam2 (signal transducing adaptor molecule 2) gene, which was in vitro implicated in sorting cargo marked by monoubiquitination toward degradation in the lysosomes. The expression analysis showed high Stam2 expression in the brain including the regions related to olfaction, and in the olfactory epithelium, but not in the respiratory part of nasal mucosa. To test mouse olfaction, ability to find chocolate hidden under the sawdust in the cage was examined.

Mice genotyping using buccal swab samples: an improved method.

Routine methods used to genotype mice involve isolation of DNA from partially amputated neonate's tail, toe, or ear. The inevitable drawbacks of such techniques are the animal's pain response and the increased time and funds required for DNA purification. In order to implement a noninvasive and simple protocol for mouse DNA isolation, we have improved the method based on samples collected by swabbing of the inner cheek.

PCR-based identification of short deletion/insertions and single nucleotide substitutions in genotyping of splotch (Pax3sp) and truncate (Nototc) mouse mutants.

Splotch (Pax3(sp)) and truncate (Noto(tc)) are spontaneously arisen mouse mutants with disturbed embryo development. Splotch carries a Pax3 mutation and it is characterized by the neural tube defect. Corresponding mutation in human causes Waardenburg syndrome.