First Author | Yang-Feng TL | Year | 1986 |
Journal | Proc Natl Acad Sci U S A | Volume | 83 |
Issue | 22 | Pages | 8679-83 |
PubMed ID | 3095840 | Mgi Jnum | J:8465 |
Mgi Id | MGI:56931 | Doi | 10.1073/pnas.83.22.8679 |
Citation | Yang-Feng TL, et al. (1986) Genes for synapsin I, a neuronal phosphoprotein, map to conserved regions of human and murine X chromosomes. Proc Natl Acad Sci U S A 83(22):8679-83 |
abstractText | Synapsin I is a neuron-specific phosphoprotein associated with the membranes of small synaptic vesicles. Its function is not entirely clear, but evidence points to a possible role in the regulation of neurotransmitter release. Its biosynthesis is under developmental control. Assignment of the human synapsin I gene to the X chromosome at band Xp11 was accomplished by in situ hybridization, using a rat cDNA probe. Southern blot analysis of DNAs from a panel of human-Chinese hamster somatic cell hybrids with defined regions of the human X chromosome confirmed the in situ mapping data. The mouse synapsin I gene was assigned to the X chromosome, proximal to band XD, by Southern blot analysis of Chinese hamster-mouse somatic cell hybrids with normal or rearranged mouse X chromosomes. In situ chromosomal hybridization experiments localized the mouse synapsin I gene more precisely to bands XA1----A4. These results add to the comparative gene map of mammalian species and support certain hypotheses regarding the evolutionary relationship between human and mouse X chromosomes. We hypothesize that the synapsin I gene could be mutated in human X-linked disorders with primary neuronal degeneration, such as the Rett syndrome. |