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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-8-28
pubmed:abstractText
The genome of Plasmodium falciparum contains a small gene family that expresses proteins characterized by the presence of 6-cysteine domains. Most of these proteins are expressed on the surface of the parasite and some are known to play a role in cell-cell interactions. Two members of this family, Pfs48/45 and Pfs230, form a complex localized on the surface of gametes and are recognized as important targets for transmission-blocking vaccines. In this study we report the analysis of an additional member of this family, Pfs47 the closest paralog of Pfs48/45. We demonstrate that Pfs47 is expressed only in female gametocytes and is located on the surface of female gametes following emergence from red blood cells. In contrast to the critical function of P48/45 for male fertility, Pfs47 does not appear crucial for female fertility. Parasites lacking Pfs47 through targeted gene disruption, produce normal numbers of oocysts when included in the blood meal of the mosquito vector. In addition, three monoclonal antibodies against Pfs47 were unable to inhibit oocyst development when present in a blood meal containing wild type parasites. These results show redundancy in protein function for Pfs47 and reduce the support for candidacy of Pfs47 as a transmission-blocking vaccine target.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0166-6851
pubmed:author
pubmed:issnType
Print
pubmed:volume
149
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
216-22
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Pfs47, paralog of the male fertility factor Pfs48/45, is a female specific surface protein in Plasmodium falciparum.
pubmed:affiliation
Department of Medical Microbiology, Radboud University Nijmegen Medical Center, 268, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands.
pubmed:publicationType
Journal Article