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Sarah J. Tarr
Researcher at University of London
Publications - 7
Citations - 101
Sarah J. Tarr is an academic researcher from University of London. The author has contributed to research in topics: Gene & Plasmodium falciparum. The author has an hindex of 4, co-authored 7 publications receiving 63 citations.
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Journal ArticleDOI
Multiplication rate variation in the human malaria parasite Plasmodium falciparum.
Lee G. Murray,Lindsay B. Stewart,Sarah J. Tarr,Ambroise D. Ahouidi,Mahamadou Diakite,Alfred Amambua-Ngwa,David J. Conway +6 more
TL;DR: Estimates of multiplication rates of long-term laboratory adapted parasite clones and new clinical isolates remained stable over time for several isolates tested repeatedly up to three months after culture initiation, indicating considerable persistence of this important trait variation.
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Multi-population genomic analysis of malaria parasites indicates local selection and differentiation at the gdv1 locus regulating sexual development
Craig W. Duffy,Alfred Amambua-Ngwa,Ambroise D. Ahouidi,Mahamadou Diakite,Gordon A. Awandare,Hampate Ba,Sarah J. Tarr,Lee G. Murray,Lindsay B. Stewart,Umberto D'Alessandro,Thomas D. Otto,Dominic P. Kwiatkowski,David J. Conway +12 more
TL;DR: A genome-wide scan showed the most exceptional geographical divergence to be at the early gametocyte gene locus gdv1 which is essential for parasite sexual development and transmission, and a major structural dimorphism with alternative 1.5 kb and 1.0 kb sequence deletions was identified.
Journal ArticleDOI
Schizont transcriptome variation among clinical isolates and laboratory-adapted clones of the malaria parasite Plasmodium falciparum
Sarah J. Tarr,Ofelia Díaz-Ingelmo,Lindsay B. Stewart,Suzanne E. Hocking,Lee G. Murray,Craig W. Duffy,Thomas D. Otto,Thomas D. Otto,Lia Chappell,Julian C. Rayner,Gordon A. Awandare,David J. Conway +11 more
TL;DR: Analysis of multiple biological sample replicates greatly improves identification of genes variably expressed between different cultured parasite lines.
Journal ArticleDOI
Investigating a Plasmodium falciparum erythrocyte invasion phenotype switch at the whole transcriptome level.
Prince B. Nyarko,Sarah J. Tarr,Yaw Aniweh,Lindsay B. Stewart,David J. Conway,Gordon A. Awandare +5 more
TL;DR: A highly biologically replicated whole transcriptome sequencing approach is used to identify the molecular signatures of variation associated with the phenotype switch in switched parasites, indicating changes in expression of a repertoire of genes not previously associated with erythrocyte invasion phenotypes.
Journal ArticleDOI
A malaria parasite subtilisin propeptide-like protein is a potent inhibitor of the egress protease SUB1.
Sarah J. Tarr,Chrislaine Withers-Martinez,Helen R. Flynn,Ambrosius P. Snijders,Laura Masino,Konstantinos Koussis,David J. Conway,Michael J. Blackman,Michael J. Blackman +8 more
TL;DR: In this article, a stand-alone malaria parasite propeptide-like protein, called SUB1-ProM, encoded by a conserved gene that lies in a highly syntenic locus adjacent to three of the four subtilisin-like genes in the Plasmodium genome.