Human Molecular Genetics, Vol 8, 2397-2406, Copyright © 1999 by Oxford University Press
M Mariani, D Baldessari, S Francisconi, L Viggiano, M Rocchi, V Zappavigna, N Malgaretti and GG Consalez
We report the cloning and genetic characterization of one human and two
murine homologs of the mab-21 cell fate specification gene. mab-21
participates in the formation of sensory organs in the male nematode tail,
and is essential for other developmental functions elsewhere in the
Caenorhabditis elegans embryo. The expanding mab-21 gene family, which is
strikingly conserved in evolution, includes two putative Drosophila
members. The two mammalian genes, encoding 41 kDa nuclear basic proteins,
are expressed in partially overlapping territories in the embryonic brain,
eye and limbs, as well as in neural crest derivatives. Recent genetic data
implicating mab-21 as a downstream target of TGF-beta signaling, together
with the distribution of mab-21 transcripts in the mouse embryo, propose
these novel genes as relevant factors in various aspects of vertebrate
neural development.
ARTICLES
Two murine and human homologs of mab-21, a cell fate determination gene involved in Caenorhabditis elegans neural development
Department of Neuroscience and
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