ISSN:
1420-9071
Keywords:
70Z/3 pre-B cells
;
poly-A addition site
;
post-transcriptional regulation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract The mouse pre-B cell line, 70Z/3, expresses multiple transcripts of the homeobox gene,HoxB5. We show here that this heterogeneity is due, at least in part, to the usage of alternative poly-A addition sites in the 3′ untranslated region (UT) of the primaryHoxB5 transcript. Furthermore, upon analysis of the subcellular distribution of the differentHoxB5 RNA species, we found that the transcripts are present mainly in the nucleus, with two-to-five-fold less RNA present in the cytoplasm. These studies suggest that multiple post-transcriptional regulatory mechanisms are involved in the expression ofHoxB5 RNA.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02128755
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