| 单词 |
transposase |
| 释义 |
transposase, n. Biochem. and Genetics.|trɑːnzˈpəʊzeɪz, trænz-, -ns-|
[f. transposition n. 7 + -ase.]
Any enzyme which catalyses or is necessary for transposition.
1979R. E. Gill et al. in Nature 20/27 Dec. 797/2 Adjacent to the regulatory region..is a 3000-base pair stretch of DNA which encodes one or more trans-acting functions necessary for Tn3 transposition. For convenience, we shall refer to this segment of the element as the ‘transposase’ region. 1980Sci. Amer. Feb. 41/1 The Tn3 transposon does in fact encode both a ‘transposase’—an enzyme required for transposition—and a repressor substance that regulates both the transcription into RNA of the transposase gene and the repressor's own synthesis. 1985J. H. Campbell in Depew & Weber Evolution at Crossroads vii. 138 The transposon also codes for two other proteins. One is the transposase. 1989B. Alberts et al. Molecular Biol. of Cell (ed. 2) v. 257 At the start of transposition, the transposase cuts one of the two DNA strands at each end of the element. |
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