Acetylation of lysine 40 in alpha-tubulin is not essential in Tetrahymena thermophila.
Acetylation of lysine 40 in alpha-tubulin is not essential in Tetrahymena thermophila.
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在嗜热四膜虫中,赖氨酸40在α-微管蛋白中的乙酰化并不是必需的。
DOI:
10.1083/jcb.129.5.1301
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发表时间:
1995-06
影响因子:
7.8
通讯作者:
GOROVSKY, MA
中科院分区:
文献类型:
--
作者:
GAERTIG, J;CRUZ, MA;BOWEN, J;GU, L;PENNOCK, DG;GOROVSKY, MA
In Tetrahymena, at least 17 distinct microtubule structures are assembled from a single primary sequence type of alpha- and beta- tubulin heterodimer, precluding distinctions among microtubular systems based on tubulin primary sequence isotypes. Tetrahymena tubulins also are modified by several types of posttranslational reactions including acetylation of alpha-tubulin at lysine 40, a modification found in most eukaryotes. In Tetrahymena, axonemal alpha-tubulin and numerous other microtubules are acetylated. We completely replaced the single type of alpha-tubulin gene in the macronucleus with a version encoding arginine instead of lysine 40 and therefore cannot be acetylated at this position. No acetylated tubulin was detectable in these transformants using a monoclonal antibody specific for acetylated lysine 40. Surprisingly, mutants lacking detectable acetylated tubulin are indistinguishable from wild-type cells. Thus, acetylation of alpha- tubulin at lysine 40 is non-essential in Tetrahymena. In addition, isoelectric focusing gel analysis of axonemal tubulin from cells unable to acetylate alpha-tubulin leads us to conclude that: (a) most or all ciliary alpha-tubulin is acetylated, (b) other lysines cannot be acetylated to compensate for loss of acetylation at lysine 40, and (c) acetylated alpha-tubulin molecules in wild-type cells contain one or more additional charge-altering modifications.
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DOI:
10.1083/jcb.110.1.97
发表时间:
1990-01
期刊:
The Journal of cell biology
影响因子:
--
作者:
Baker HN;Rothwell SW;Grasser WA;Wallis KT;Murphy DB
通讯作者:
Murphy DB
影响因子:
7.8
作者:
Lopata, M A;Cleveland, D W
通讯作者:
Cleveland, D W
DOI:
10.1083/jcb.97.1.258
发表时间:
1983-07
期刊:
The Journal of cell biology
影响因子:
--
作者:
L'Hernault SW;Rosenbaum JL
通讯作者:
Rosenbaum JL
影响因子:
--
作者:
GAERTIG, J;THATCHER, TH;GOROVSKY, MA
通讯作者:
GOROVSKY, MA
DOI:
10.1073/pnas.80.10.2926
发表时间:
1983-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
DAVIS, FM;TSAO, TY;RAO, PN
通讯作者:
RAO, PN