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EF-hand, calcium binding motif, found in Drosophila melanogaster calbindin-32 (CBN) and similar proteins CBN, the product of the cbn gene, is a Drosophila homolog to vertebrate neuronal six EF-hand calcium binding proteins. It is expressed through most of ontogenesis with a selective distribution in the nervous system and in a few small adult thoracic muscles. Its precise biological role remains unclear. CBN contains six EF-hand motifs, but some of them may not bind calcium ions due to the lack of key residues. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",