Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-11-25
pubmed:abstractText
As a platform for syntheses of nanoconjugates in antitumor drug delivery, polymalic acid together with its tailoring specific exohydrolase is purified from plasmodium cultures of the slime mold Physarum polycephalum, a member of the phylum myxomycota. Polymalic acid hydrolase is expressed in an inactive form that functions as a molecular adapter for polymalic acid trafficking within the plasmodium and is activated only during secretion. Activation follows specific protein tyrosine phosphorylation and dissociation from plasma membranes. Purified inactive Physarum polymalic acid hydrolase, recombinantly expressed in yeast Saccharomyces, is activated on a preparative basis by the addition of plasma membrane fragments from plasmodia of P. polycephalum. Activation of polymalic acid hydrolase and inhibition of polymalic acid synthesis by protein tyrosine phosphorylation are complementary events and could indicate a joint signal response to plasma membrane damage.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1090-2104
pubmed:author
pubmed:issnType
Electronic
pubmed:day
19
pubmed:volume
377
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
735-40
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Physarum polymalic acid hydrolase: Recombinant expression and enzyme activation.
pubmed:affiliation
Biophysik und Physikalische Biochemie, Universitaet Regensburg, 93040 Regensburg, Germany.
pubmed:publicationType
Journal Article