The copiousness of the Drosophila Down Syndrome cell adhesion molecule (Dscam), puzzles geneticists. Through alternative splicing, Dscam can produce 38,016 unique protein isoforms. Yet, no one has discerned a reason for such bounty. Andrew Chess and postdoc Guilherme Neves, at the Whitehead Institute for Biomedical Research, suggest that Dscam variants may serve as identity signatures to help individual neurons discern self from non-self.1In the study, microarray data revealed temporal and spati
The copiousness of the
In the study, microarray data revealed temporal and spatial expression differences for common alternatively spliced exons. Reverse-transcriptase PCR showed atht individual neurons even within the same cell populations produce a distinct array of proteins. A given R3/R4 photoreceptor cell, for example, produces a set of 15–50
The human homolog, DSCAM, does not ...
A citizen science game explores how social choices and networks can influence how an illness moves through a population.
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