APK1B (Arabidopsis protein kinase 1B); kinase. Identical to Protein kinase APK1B, chloroplast precursor (APK1B) [Arabidopsis Thaliana] (GB:P46573;GB:Q9SLH5); similar to APK1A (Arabidopsis protein kinase 1A), kinase [Arabidopsis thaliana] (TAIR:AT1G07570.2); similar to APK1A (Arabidopsis protein kinase 1A), kinase [Arabidopsis thaliana] (TAIR:AT1G07570.1); similar to MLPK isoform 2 [Brassica rapa] (GB:ABP01775.1); contains InterPro domain Protein kinase, core; (InterPro:IPR000719); contains InterPro domain Protein kinase-like (InterPro:IPR011009)