CA4 — Cicer arietinum

Summary

LOC101502849 (CA4, also known as CaCA4) on chickpea chromosome 8 encodes a beta-type carbonic anhydrase, a zinc-binding enzyme with carbonic anhydrase activity. The protein localises to the chloroplast envelope and stroma, mitochondria, cytosol and plasma membrane. CA4 is associated with negative regulation of stomatal complex development, regulation of stomatal movement, response to carbon dioxide, and response to freezing. It is also linked to seed germination, embryogenesis, heterotrophy, phenylpropanoid anabolism, proteasome assembly, GPCR signalling and intracellular signal transduction. Trait associations include drought tolerance, freezing stress response, sugar content, protein content, seed size, carbon fixation, stomatal density and movement, lateral root development, disease resistance and cold response. Studies of related genes in other species link the family to leaf temperature, stomatal resistance and opening, water use efficiency, photochemical quenching and callus induction.