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. 1990;53(4):225-9.
doi: 10.1159/000132937.

Four genes for the calpain family locate on four distinct human chromosomes

S Ohno  1 , S Minoshima, J Kudoh, R Fukuyama, Y Shimizu, S Ohmi-Imajoh, N Shimizu, K Suzuki
Affiliations

Four genes for the calpain family locate on four distinct human chromosomes

S Ohno et al. Cytogenet Cell Genet. 1990.

Abstract

Calcium dependent proteases (calpains, CAPNs, E.C.3.4.22.17) constitute a family of proteins which share a homologous cysteine-protease domain (large subunits, L1, L2, and L3) and an E-F hand Ca2(+)-binding domain (L1, L2, L3, and small subunit, S). We have mapped the genes for four calpain proteins (L1, L2, L3, and S) on four distinct human chromosomes by a combination of spot-blot hybridization to flow-sorted chromosomes and Southern hybridization of DNAs from a human x mouse hybrid cell panel. The genes for calpain L1 (CAPN1, large subunit of calpain I), L2 (CAPN2, large subunit of calpain II), L3 (CAPN3, a protein related to the large subunits), and S (CAPN4, a small subunit common to calpains I and II) were assigned to human chromosomes 11, 1, 15, and 19, respectively.

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