rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
2
|
pubmed:dateCreated |
1985-12-20
|
pubmed:abstractText |
tsK-NRK rat cells infected with a temperature-sensitive mutant of the Kirsten murine sarcoma virus were arrested in the G0/G1 phase of their cell cycle by incubation in serum-deficient medium at a temperature (41 degrees C) which inactivates the virus' abnormally thermolabile mitogenic/oncogenic 21 kDa (p 21) RAS protein product. Reactivating the viral RAS protein by lowering the temperature to a permissive 36 degrees C rapidly (within 1 hour) stimulated adenylate cyclase, sensitized the enzyme to stimulation by GTP and forskolin and caused the tsK-NRK cells to transit G1 and start replicating their DNA about 10 hours later. The 41 degrees C----36 degrees C shift did not affect adenylate cyclase or stimulate G1 transit in uninfected NRK cells. Thus, an oncogenic viral RAS protein was able to stimulate adenylate cyclase and G1 transit in a mammalian cell just as other RAS proteins appear to do in yeast cells.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Oct
|
pubmed:issn |
0006-291X
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
30
|
pubmed:volume |
132
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
780-6
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:3904756-Adenylate Cyclase,
pubmed-meshheading:3904756-Animals,
pubmed-meshheading:3904756-Cell Line,
pubmed-meshheading:3904756-Enzyme Activation,
pubmed-meshheading:3904756-Fibroblasts,
pubmed-meshheading:3904756-Forskolin,
pubmed-meshheading:3904756-Guanosine Triphosphate,
pubmed-meshheading:3904756-Interphase,
pubmed-meshheading:3904756-Kidney,
pubmed-meshheading:3904756-Kirsten murine sarcoma virus,
pubmed-meshheading:3904756-Neoplasm Proteins,
pubmed-meshheading:3904756-Proto-Oncogene Proteins p21(ras),
pubmed-meshheading:3904756-Rats,
pubmed-meshheading:3904756-Temperature,
pubmed-meshheading:3904756-Viral Proteins
|
pubmed:year |
1985
|
pubmed:articleTitle |
The mitogenic/oncogenic p21 Ki-RAS protein stimulates adenylate cyclase activity early in the G1 phase of NRK rat kidney cells.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|