ArticleCell and tissue research1995
Expression of Siah-2, a vertebrate homologue of Drosophila sina, in germ cells of the mouse ovary and testis.
Article in Cell and tissue research, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 16 citations in OpenAlex.
- Generation and analysis of Siah2 mutant mice.Molecular and cellular biology · 2003Article
- Normal p53 function in primary cells deficient for Siah genes.Molecular and cellular biology · 2002Article
- SIAH-1 promotes apoptosis and tumor suppression through a network involving the regulation of protein folding, unfolding, and trafficking: identification of common effectors with p53 and p21(Waf1).Proceedings of the National Academy of Sciences of the United States of America · 1999Article
- Activation of the human homologue of the Drosophila sina gene in apoptosis and tumor suppression.Proceedings of the National Academy of Sciences of the United States of America · 1996Article
- Isolation of 10 differentially expressed cDNAs in p53-induced apoptosis: activation of the vertebrate homologue of the drosophila seven in absentia gene.Proceedings of the National Academy of Sciences of the United States of America · 1996Article
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Siah-2 is one of three murine homologues of the Drosophila gene seven in absentia (sina). The sina protein is nuclear localizing and required downstream of Ras1, Raf and the tyrosine kinase sevenless in Drosophila. Recent results have demonstrated a high degree of functional conservation between vertebrate and insect tyrosine kinase signalling pathways, involving such proteins as Son of sevenless, Grb2 and GAP. These findings, together with the high degree of sequence conservation between the Siah proteins and sina, suggest that the mammalian Siah proteins may also participate in signal transduction by some tyrosine kinases. Here, we report a high level of expression of Siah-2 in a specific population of germ cells within both the mouse ovary and testis. Siah-2 expression was absent in primordial oocytes but was detected in all growing oocytes, coincident with their recruitment from the pool of quiescent cells. The level of Siah-2 mRNA increased as the oocytes matured and was readily detectable in Graafian follicles and in fertilized zygotes up until the two cell stage, a time of extensive maternal transcript degradation and zygotic gene activation. The expression of Siah-2 in the testis was first detected in postmeiotic spermatids. These represented a comparable stage of germ cell development to those cells first expressing Siah-2 in the ovary. The expression pattern of Siah-2 in germ cells was similar to that described for the proto-oncogene c-mos, and the possibility that Siah-2 lies downstream of p39mos in signal transduction within the mouse oocyte requires further investigation.(ABSTRACT TRUNCATED AT 250 WORDS)
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