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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 3
pubmed:dateCreated
2007-2-22
pubmed:abstractText
Penicillium marneffei is a dimorphic fungus endemic in southeast Asia. The incidence of P. marneffei infection has increased greatly in this region with the spread of human immunodeficiency virus, but the infection routes and pathogenic mechanisms of P. marneffei remain poorly understood. P. marneffei is an opportunistic human pathogen exhibiting a temperature-dependent dimorphic switch. At 25 degrees C it grows as filamentous hyphae, whilst at 37 degrees C it forms uninucleate yeast cells and divides by fission. Dimorphic fungal pathogenicity is frequently associated with the dimorphic switch, but the mechanism that regulates the switch has remained obscure. In this report, two-dimensional difference gel electrophoresis was used to investigate the proteins expressed differentially in the yeast and mycelial phases of a wild-type isolate of P. marneffei. Among thousands of protein molecules displayed, more than 500 showed differential expression between the two phases. In particular, 26 proteins were identified using matrix-assisted laser desorption/ionization time-of-flight MS. Expression of catalase-peroxidase, isocitrate lyase, Hsp90, binding protein and cytochrome P-450 increased significantly in the yeast phase, whereas levels of poly(A) polymerase and SNF22 were reduced.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-2615
pubmed:author
pubmed:issnType
Print
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
298-304
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Differentially expressed proteins of pathogenic Penicillium marneffei in yeast and mycelial phases.
pubmed:affiliation
Department of Dermatology, Second Affiliated Hospital, Sun Yat-Sen University, 107 West Yanjiang Road, Guangzhou 510120, China. xiliyan@mail.sysu.edu.cn
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't