Claus‐Peter Witte

This study shows that VEN4 dephosphorylates dNTPs to dNs, which are then used by mitochondria and chloroplasts for DNA replication in Arabidopsis.

This study identifies IMPDH2 as essential for Arabidopsis development and growth, showing its role in nucleotide biosynthesis and its impact on photosynthesis and organ development.

This study identifies two paralogous guanine deaminases in C. elegans that regulate purine homeostasis, with one acquired via horizontal gene transfer from bacteria.

Comparing nine Solanaceae genomes reveals a conserved withanolide gene cluster; three of its P450s, expressed in yeast and N. benthamiana, oxidise 24-methyldesmosterol toward the withanoside V aglycone.

This study identifies UPP as a key regulator of chloroplast proteostasis in Arabidopsis, affecting PetC stability and photosynthetic function under high light conditions.