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PMID: 8756607 Published · ppublish English Comparative Study Journal Article Research Support, U.S. Gov't, Non-P.H.S.

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.

Plant molecular biology ·Vol. 31 ·No. 2 ·1996-05-00 ·Pages 419-27

Corum JW, Hartung AJ, Stamey RT, Rundle SJ

Abstract

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.

MeSH Terms
Amino Acid Sequence Arabidopsis/genetics Arabidopsis Proteins Base Sequence Cloning, Molecular DNA, Complementary/genetics Gene Expression Regulation, Plant Genes, Plant Isoenzymes/genetics Molecular Sequence Data Phosphoprotein Phosphatases/genetics Plant Proteins/genetics Protein Phosphatase 2 RNA, Messenger/genetics Sequence Alignment Sequence Homology, Amino Acid
Chemicals
Arabidopsis Proteins DNA, Complementary Isoenzymes Plant Proteins RNA, Messenger Phosphoprotein Phosphatases Protein Phosphatase 2 type 2A protein serine-threonine phosphatase 55 kDa B, Arabidopsis
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Corum J W
Department of Biology, Western Carolina University, Cullowhee, NC 28723, USA.
Hartung A J
Stamey R T
Rundle S J
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23 references, click to expand
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Article Info
Journal
Plant molecular biology
Abbr.
Plant Mol Biol
ISSN
0167-4412
DOI
10.1007/BF00021804
Published
1996-05-00
Pages
419-27
Language
English
Region
Netherlands
NLM ID
9106343
Subset
IM
Databases
GENBANK
U27299, U40161
External Links
PubMed source DOI: 10.1007/BF00021804 View journal details
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