Updated project metadata. We have analysed the recombinant kinase domain of AtCRK10 (At4g23180) purified as an N-terminal His-tag from Escherichia coli cells by LC-MS/MS. Both the WT and the crk10-A39T7 mutant allele of the CRK10 kinase domain were analysed. Post-translational modifications were identified, and a MASCOT search was carried out.