A myosin from a higher plant has structural similarities to class V myosins


Autoria(s): Kinkema, Mark; Schiefelbein, John
Data(s)

1994

Resumo

In plant cells, myosin is believed to be the molecular motor responsible for actin-based motility processes such as cytoplasmic streaming and directed vesicle transport. In an effort to characterize plant myosin, a cDNA encoding a myosin heavy chain was isolated from Arabidopsis thaliana. The predicted product of the MYA1 gene is 173 kDa and is structurally similar to the class V myosins. It is composed of the highly-conserved NH2-terminal "head" domain, a putative calmodulin-binding "neck" domain an alpha-helical coiled-coil domain, and a COOH-terminal domain. Northern blot analysis shows that the Arabidopsis MYA1 gene is expressed in all the major plant tissues (flower, leaf, root, and stem). We suggest that the MYA1 myosin may be involved in a general intracellular transport process in plant cells.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/39096/

Publicador

Elsevier

Relação

http://eprints.qut.edu.au/39096/1/Kinkema_and_Schiefelbein_1994.pdf

DOI:10.1006/jmbi.1994.1400

Kinkema, Mark & Schiefelbein, John (1994) A myosin from a higher plant has structural similarities to class V myosins. Journal of Molecular Biology, 239(4), pp. 591-597.

Direitos

Copyright 1994 Elsevier

Fonte

Centre for Tropical Crops and Biocommodities

Palavras-Chave #060702 Plant Cell and Molecular Biology #myosin #Arabidopsis #cytoplasmic streaming
Tipo

Journal Article