calpain

[ kal-peyn ]
/ ˈkæl peɪn /

noun Biochemistry.

a protein that is activated by calcium ions in some synapses and in erythrocytes can affect proteins important in determining cellular shape and deformability: a calcium-activated neutral protease.

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Origin of calpain

First recorded in 1980-85; probably cal(cium) + p(rote)a(se) + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020