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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 13
pubmed:dateCreated
2010-6-17
pubmed:abstractText
The ability to undergo polarised cell growth is fundamental to the development of almost all walled organisms. Fungi are characterised by yeasts and moulds, and both cellular forms have been studied extensively as tractable models of cell polarity. Chitin is a hallmark component of fungal cell walls. Chitin synthesis is essential for growth, viability and rescue from many conditions that impair cell-wall integrity. In the polymorphic human pathogen Candida albicans, chitin synthase 3 (Chs3) synthesises the majority of chitin in the cell wall and is localised at the tips of growing buds and hyphae, and at the septum. An analysis of the C. albicans phospho-proteome revealed that Chs3 can be phosphorylated at Ser139. Mutation of this site showed that both phosphorylation and dephosphorylation are required for the correct localisation and function of Chs3. The kinase Pkc1 was not required to target Chs3 to sites of polarised growth. This is the first report demonstrating an essential role for chitin synthase phosphorylation in the polarised biosynthesis of fungal cell walls and suggests a new mechanism for the regulation of this class of glycosyl-transferase enzyme.
pubmed:grant
pubmed:commentsCorrections
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pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1477-9137
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
123
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2199-206
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Phosphorylation regulates polarisation of chitin synthesis in Candida albicans.
pubmed:affiliation
School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, Scotland, UK.
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