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首页> 外文期刊>Journal of Virology >Expression of 100,000-Mr simian virus 40 (SV40) tumor antigen in mouse fibroblasts transfected with replication-defective SV40 genomes.
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Expression of 100,000-Mr simian virus 40 (SV40) tumor antigen in mouse fibroblasts transfected with replication-defective SV40 genomes.

机译:用复制缺陷SV40基因组转染的小鼠成纤维细胞中100,000-mr Simian病毒40(SV40)肿瘤抗原的表达。

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Simian virus 40 early region mutants which are partially or completely replication defective were tested for their ability to transform postcrisis mouse fibroblasts. All mutants tested were capable of generating anchorage-independent transformants. We have previously reported the presence of a variant tumor antigen of 100,000 Mr (100K protein) generated upon transformation by wild-type simian virus 40 virions which correlates with anchorage-independent growth (Chen et al., Mol. Cell. Biol. 1:994-1006, 1981). In this study, none of the mutants tested produced the 100K variant protein at early (before the fifth) passage. Long-term passage (greater than 20 weeks) permitted the expression of this 100K variant in half of the transformants. Thus the phenotype of these mutants is different from both wild-type simian virus 40 (frequently production of 100K by the third passage, and always by the tenth passage) and the origin-minus class of mutants (no production of 100K at any passage).
机译:测试了部分或完全复制的辛系病毒40早期或完全复制的突变体进行了转化后泌乳小鼠成纤维细胞的能力。测试的所有突变体能够产生无关的锚固反应性。我们之前报道了在通过野生型Simian病毒40病毒中转化时产生的100,000mr(100K蛋白)的变体肿瘤抗原的存在,其与锚固无关的生长(Chen等,Mol.Cell.Biol.1: 994-1006,1981)。在本研究中,在早期(第五次)通过时,突变体均未测试100K变体蛋白。长期通过(大于20周)允许在一半的转化体中表达该100K变体。因此,这些突变体的表型不同于野生型Simian病毒40(频繁地产生100K,第三段,并且总是在第十段通过第十段)和突变体的起源 - 减去突变体(任何通道都没有100K的生产) 。

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