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Yasuda H, & Siddiqui SS (1990). Trans-splicing in Tubulin?. Worm Breeder's Gazette, 11(2), 73. Unpublished information; cite only with author permission.
At the last worm meeting (CSH, 1989), we reported the nucleotide sequence of the alpha-1 tubulin gene AT3 that was cloned by direct screening of a C. elegans cDNA expression library in a lambda gt11 vector (Bob Barstead), using a tubulin specific monoclonal anti-body 3A5 (provided by M. Fuller). This gene was previously identified by Linda Gremke using a chicken tubulin probe (Don Cleveland). Our clone SQ#TbA77 was cytologically mapped on chromosome I of C. elegans (Alan Coulson and John Sulston, MRC, LMB, UK). As Dr. Tom Blumenthal walked by our poster at the meeting, he pointed out the presence of an eight nucleotide non-coding sequence TTCAGGTT, which corresponds to the acceptor sequence of C. elegans in the trans-splicing reaction of mRNA. This is a rather novel feature for the tubulin gene, as the other alpha or beta tubulin genes, from C. elegans or other metazoans have not been reported to be trans-spliced at the mRNA level. We are currently trying to sequence the mRNA to test if this mRNA is indeed spliced. Figure below shows the physical map of the alpha-1 tubulin gene, and the nucleotide sequence showing the acceptor sequence ( marked by arrowed box), in the non-coding sequence of the tubulin gene. [See Figure 1]