CPK28 (calcium-dependent protein kinase 28); calmodulin-dependent protein kinase. similar to CPK16 (calcium-dependent protein kinase 16), calmodulin-dependent protein kinase [Arabidopsis thaliana] (TAIR:AT2G17890.1); similar to CPK18 (calcium-dependent protein kinase 18), calmodulin-dependent protein kinase [Arabidopsis thaliana] (TAIR:AT4G36070.1); similar to calcium-dependent protein kinase CPK4 [Nicotiana tabacum] (GB:AAL30819.1); similar to calcium-dependent protein kinase CDPK1444 [Medicago truncatula] (GB:AAX14494.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO48212.1); contains InterPro domain Serine/threonine protein k