| 单词 |
nexin |
| 释义 |
nexin, n. Biochem.|ˈnɛksɪn|
[f. L. nex-us bond + -in1.]
The protein which constitutes the links between the outer microtubule doublets of the axonemes of eukaryotic cells.
1970R. E. Stephens in Biol. Bull. CXXXIX. 438 The protein represents about 2{pcnt} of the total axonemal protein and hence less than 1{pcnt} of the total flagellar protein. The molecular weight by SDS gel electrophoresis is 165,000 {pm} 10{pcnt}. The term ‘nexin’ is proposed for this protein, derived from the Latin nexus, a tie binding together members of a group. 1973Jrnl. Cell Biol. LVIII. 628/1 The outer doublet tubules of the axoneme tend to remain together in a cylinder long after digestion appears to have destroyed the nexin links. 1979Nature 1 Mar. 70/2 Any or all of three morphological components of the axoneme might be implicated in either Ca2+ -sensitive or Ca2+ -insensitive aspects of the normal control of sliding: the dynein arms themselves; the spoke, central sheath complex; and the interdoublet (nexin) links. 1984Holtzman & Novikoff Cells & Organelles (ed. 3) ii. ii. 253 (caption) The fine links, made of the protein ‘nexin’, attaching adjacent doublets to one another, can be extensively stretched without breaking. |
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