PP7, a plant phosphatase representing a novel evolutionary branch of eukaryotic protein Ser/Thr phosphatases.
Biochem Mol Biol Int
; 44(4): 703-15, 1998 Apr.
Article
em En
| MEDLINE
| ID: mdl-9584984
ABSTRACT
We describe a novel protein Ser/Thr phosphatase from Arabidopsis thaliana, PP7, which is only 27-32% identical in amino acid sequence to the known phosphatases and is the most divergent member of the PPP (PP1/2A/2B) family for today. Some structural features suggest more close relationship of PP7 to the PP5/rdgC subfamily. PP7 contains all of the residues essential for the phosphatase activity and possesses three major insertions in its presumable C-terminal subdomain, which suggest its unique regulation and/or optimisation of its structure for interaction with specific substrates or regulators. A phosphatase structurally related to PP7 is expressed in rice. PP7 conservation between mono- and dicotyledonous plants may point to its essential role in the plant cell.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteínas de Plantas
/
Plantas
/
Fosfoproteínas Fosfatases
Idioma:
En
Revista:
Biochem Mol Biol Int
Assunto da revista:
BIOLOGIA MOLECULAR
/
BIOQUIMICA
Ano de publicação:
1998
Tipo de documento:
Article
País de afiliação:
Reino Unido