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Genetic structure of apical membrane antigen-1 in Plasmodium falciparum isolates from Pakistan.


ABSTRACT: Plasmodium falciparum apical membrane antigen-1 (PfAMA-1) is a major candidate for the blood-stage malaria vaccine. Genetic polymorphisms of global pfama-1suggest that the genetic diversity of the gene can disturb effective vaccine development targeting this antigen. This study was conducted to explore the genetic diversity and gene structure of pfama-1 among P. falciparum isolates collected in the Khyber Pakhtunkhwa (KP) province of Pakistan. A total of 19 full-length pfama-1 sequences were obtained from KP-Pakistan P. falciparum isolates, and genetic polymorphism and natural selection were investigated. KP-Pakistan pfama-1 exhibited genetic diversity, wherein 58 amino acid changes were identified, most of which were located in ectodomains, and domains I, II, and III. The amino acid changes commonly found in the ectodomain of global pfama-1 were also detected in KP-Pakistan pfama-1. Interestingly, 13 novel amino acid changes not reported in the global population were identified in KP-Pakistan pfama-1. KP-Pakistan pfama-1 shared similar levels of genetic diversity with global pfama-1. Evidence of natural selection and recombination events were also detected in KP-Pakistan pfama-1.

SUBMITTER: Zaib K 

PROVIDER: S-EPMC11366544 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature

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Genetic structure of apical membrane antigen-1 in Plasmodium falciparum isolates from Pakistan.

Zaib Komal K   Khan Asifullah A   Khan Muhammad Umair MU   Ullah Ibrar I   Võ Tuấn Cường TC   Kang Jung-Mi JM   Lê Hương Giang HG   Na Byoung-Kuk BK   Afridi Sahib Gul SG  

Parasites, hosts and diseases 20240826 3


Plasmodium falciparum apical membrane antigen-1 (PfAMA-1) is a major candidate for the blood-stage malaria vaccine. Genetic polymorphisms of global pfama-1suggest that the genetic diversity of the gene can disturb effective vaccine development targeting this antigen. This study was conducted to explore the genetic diversity and gene structure of pfama-1 among P. falciparum isolates collected in the Khyber Pakhtunkhwa (KP) province of Pakistan. A total of 19 full-length pfama-1 sequences were obt  ...[more]

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