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Homologous recombination in Trypanosoma brucei is used for moving variant surface glycoprotein (VSG) genes into expression sites during immune evasion by antigenic variation. A major route for such VSG switching is gene conversion reactions in which RAD51, a universally conserved recombinase, catalyses homology-directed strand exchange. In any eukaryote,(More)
Major outer membrane proteins from many species of Campylobacter cross-react with cholera toxin. Ventilation of the very immature lung in utero induces injury and BPD-like changes in lung structure in fetal sheep. subjective responses to pharmacological challenge with citalopram: a controlled study in male and female ecstasy/MDMA users. The effect of asthma(More)
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