A recombinant hybrid protein as antigen for an anti-blood stage malaria vaccine: a study on the conservation of a protective component

Memórias do Instituto Oswaldo Cruz

Bernhard Knapp¹  Uwe Nau²  Artur Scherf¹ 

[1] ,Research Laboratories of BehringwerkeMarburg,Germany

关键词: Plasmodium falciparum;    malaria vaccine;    serine-stretch protein SERP;    field isolates;   

DOI  :  10.1590/S0074-02761992000700029

来源: SciELO

【 摘 要 】

Recently we have shown that two hybrid proteins expressed in Escherichia coli confer protective immunity to Aotus monkeys against an experimental Plasmodium falciparum infection (Knapp et al., 1992). Both hybrid proteins carry a sequence containing amino acids 631 to 764 of the serine stretch protein SERP (Knapp et al., 1989b). We have studied the diversity of this SERP region in field isolates of P. falciparum. Genomic DNA was extracted from the blood of six donors from different endemic areas of Brazil and West Africa. The SERP region encoding amino acids 630 to 781 was amplified by polymerase chain reaction (PCR) and sequenced. Only conserved amino acid substitutions in maximally two positions of the analyzed SERP fragment could be detected which supports the suitability of this SERP region as a component of anti-blood stage malaria vaccine.

【 授权许可】

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