Characterization of DNA sequences encoding a novel isoform of the 55 kDa B regulatory subunit of the type 2A protein serine/threonine phosphatase of Arabidopsis thaliana

被引：25

作者：

Corum, JW ^{[1
]}

Hartung, AJ ^{[1
]}

Stamey, RT ^{[1
]}

Rundle, SJ ^{[1
]}

机构：

[1] WESTERN CAROLINA UNIV,DEPT BIOL,CULLOWHEE,NC 28723

来源：

PLANT MOLECULAR BIOLOGY | 1996年 / 31卷 / 02期

关键词：

Arabidopsis; PP2A regulatory subunit; serine/threonine phosphatase;

D O I：

10.1007/BF00021804

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

We have identified a novel gene (AtB beta) encoding a previously uncharacterized isoform of the B regulatory subunit of the type 2A serine/threonine protein phosphatase (PP2A) of Arabidopsis, and show that mRNA derived from the AtB beta gene accumulates in all Arabidopsis organs. In addition, we examined the expression of the three genes encoding the A regulatory subunit of Arabidopsis PP2A and show these genes are expressed in all organs as well. Taken together, our results suggest a myriad of PP2A subunit combinations, possibly with distinct substrate specificities, may occur within each Arabidopsis cell.

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收藏

页码：419 / 427

页数：9

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