The chloroplast 2-cysteine peroxiredoxin is central player and missing link in the chloroplast thiol-disulfide redox regulatory network, and participates in oxidative inactivation of reductively activated enzymes in photosynthesis.
Plasmodium falciparum K13 mutations confer resistance to the antimalarial artemisinin in Asian and African parasites, with most gene-edited mutant K13 African parasite lines showing a fitness cost that may predict slow dissemination of artemisinin resistance in high-transmission settings.
The regulatory switch from protection to assimilation, which plants use to exploit natural, fluctuating light, involves movement of the enzyme ferredoxin:NADP(H) oxidoreductase between chloroplast membrane complexes.
A combination of chloroplast transformation with nuclear transformation and large-scale metabolic screening of supertransformed plant lines has enabled an entire biochemical pathway to be transferred from a medicinal plant to a high-biomass crop.
Structural and functional analyses show how the spliceosomal Prp3 protein concomitantly binds double- and single- stranded regions in U4/U6 di-snRNAs and serves to stabilize the U4/U6•U5 tri-snRNP for splicing.