IQD19 (IQ-DOMAIN 19); calmodulin binding. similar to IQD6 (IQ-domain 6), calmodulin binding [Arabidopsis thaliana] (TAIR:AT2G26180.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO64650.1); contains InterPro domain IQ calmodulin-binding region (InterPro:IPR000048)