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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
2
|
| pubmed:dateCreated |
1991-2-25
|
| pubmed:abstractText |
Accumulation of tubulin as compared with the accumulation of total cellular protein in human NHIK 3025 cells treated with the sulfone 2-(2-thenyl)sulfonyl-5-bromopyrimidine (NY 4137) and the sulfoxide 2-(2-thenyl)sulfinyl-5-bromopyrimidine (NY 4138), two mitotic inhibitors, were investigated by two-parametric flow cytometry. Following a 4 h treatment with NY 4137 tubulin accumulation is inhibited while total protein continues to accumulate. After treatment for 4 h with NY 4138 the accumulation of total protein is approximately constant, while the accumulation of tubulin is reduced although not to the same degree as that found for NY 4137-treated cells. In addition, the percentage tubulin SH-groups (6.89 +/- 0.14) remaining after treatment of purified rat brain tubulin with NY 4137 or NY 4138 was determined. Treatment with 0.0125 mM NY 4137 reduced the number of tubulin SH-groups detectable with dithiobis benzoate or from 6.89 +/- 0.14 before treatment to about 4 after treatment. However, practically all SH-groups of tubulin remain detectable following treatment with the same concentration of NY 4138. From the results described in this report we infer that NY 4137 binds to tubulin SH-groups and that inhibition of tubulin accumulation follows as a secondary effect.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Aug
|
| pubmed:issn |
0300-8177
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
10
|
| pubmed:volume |
96
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
117-26
|
| pubmed:dateRevised |
2006-11-15
|
| pubmed:meshHeading | |
| pubmed:year |
1990
|
| pubmed:articleTitle |
Effect of two pyrimidine analogs on accumulation of tubulin in NHIK 3025 cells.
|
| pubmed:affiliation |
Department of Tissue Culture, Norwegian Radium Hospital, Montebello, Oslo.
|
| pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|