Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/85671
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Type: Journal article
Title: Expression of Plasmodium falciparum blood-stage antigens in Escherichia coli: detection with antibodies from immune humans
Author: Kemp, D.
Coppel, R.
Cowman, A.
Saint, R.
Brown, G.
Anders, R.
Citation: Proceedings of the National Academy of Sciences of USA, 1983; 80(12):3787-3791
Publisher: National Academy of Sciences
Issue Date: 1983
ISSN: 0027-8424
1091-6490
Statement of
Responsibility: 
David J. Kemp, Ross L. Coppel, Alan F. Cowman, Robert B. Saint, Graham V. Brown, and Robin F. Anders
Abstract: Many proteins produced by blood stages of the malaria parasite Plasmodium falciparum are natural immunogens in man. As an approach to determining which of these are relevant to protective immunity we have constructed an expression library of P. falciparum cDNA sequences, cloned in Escherichia coli. The cDNA sequences were inserted into the beta-galactosidase gene of an ampicillin-resistant derivative of the temperature-sensitive lysogenic bacteriophage lambda gt11. About 5% of the resulting clones expressed P. falciparum sequences as polypeptides fused to beta-galactosidase. We have identified many clones that express P. falciparum antigens by immunological screening in situ with antibodies from immune human sera that inhibit P. falciparum growth in vitro. The antigen-positive clones contain P. falciparum cDNA sequences, as determined by hybridization. Some express polypeptides that are larger than beta-galactosidase and react both with antibodies to beta-galactosidase and with antibodies from humans immune to P. falciparum. The cloned P. falciparum antigens should facilitate new approaches to the identification of potential vaccine molecules.
Keywords: Animals
Humans
Plasmodium falciparum
Escherichia coli
Malaria
DNA Restriction Enzymes
beta-Galactosidase
DNA
RNA, Messenger
Immune Sera
Antigens
Immunity
Base Sequence
Plasmids
Rights: Copyright status unknown
DOI: 10.1073/pnas.80.12.3787
Appears in Collections:Aurora harvest 2
Molecular and Biomedical Science publications

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