Abstract:
:Subtractive library construction and differential screening were used to identify a cDNA for a cell type-specific immediate early gene induced in rat PC12 pheochromocytoma cells. Sequencing identified the protein product of this gene as rat synaptotagmin IV (SytIV). Synaptotagmins are synaptic vesicle proteins thought to play a role in depolarization-induced, calcium-mediated exocytosis and neurotransmitter release. SytIV mRNA accumulation is transiently induced in PC12 cells by potassium depolarization, calcium ionophore, ATP, and forskolin. In contrast, growth factors and phorbol 12-myristate 13-acetate induce little or no SytIV mRNA accumulation. Kainic acid-induced seizures in rats are followed by accumulation of SytIV message in the hippocampus and piriform cortex. The SytIV gene may provide a direct link between depolarization-induced neuronal gene expression and subsequent modulation of synaptic structure and function.
journal_name
Proc Natl Acad Sci U S Aauthors
Vician L,Lim IK,Ferguson G,Tocco G,Baudry M,Herschman HRdoi
10.1073/pnas.92.6.2164subject
Has Abstractpub_date
1995-03-14 00:00:00pages
2164-8issue
6eissn
0027-8424issn
1091-6490journal_volume
92pub_type
杂志文章abstract::Column chromatography on (dT)(12-18)-cellulose was used to detect and isolate a novel DNA polymerase activity from human breast tumor cell line HBT-3. The new enzyme is similar to those of mammalian RNA tumor viruses in its molecular size, preference for poly(A).(dT)(12-18) as compared to either poly(dA).(dT)(12-18) o...
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更新日期:1993-10-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:2019-12-05 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:1994-05-24 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:1990-10-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:2012-10-16 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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更新日期:1985-04-01 00:00:00