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Gene. 1989 Mar 15;76(1):171-5.

Vimentin cDNA clones covering the complete intermediate-filament protein are found in an EHS tumor cDNA library.

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  • 1Molecular Biology Research, Upjohn Company, Kalamazoo, MI 49001.


Intermediate filaments are part of the cytoskeleton of most cells. To analyze changes in intermediate filament synthesis, we have isolated two cDNA clones (pV-C25, pV-C877) that cover the complete coding sequence of the murine intermediate filament protein vimentin. The cDNA clones were isolated from a murine Engelbreth-Holm-Swan (EHS) tumor cDNA library by screening under (i) non-stringent conditions with a synthetic oligodeoxynucleotide (oligo), LW-36, which is specific for type-IV collagen, and (ii) stringent conditions with oligo LW75, which was derived from the vimentin clone pV-C25. The cDNA clones contain 38 nucleotides (nt) of the 5'-untranslated region, 1398 nt of the coding region and 7 nt of the 3'-untranslated region. Comparing the mouse sequence with the published sequence for vimentin from hamster, human and chicken, we find shared identities of 99, 97 and 87%, respectively. Since the cDNA clones have been isolated from a basement membrane tumor (EHS) cDNA library, we measured the vimentin mRNA production in EHS tumor cells in culture, and found that this mRNA is half as abundant as mRNA for type-IV mRNA.

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