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2021/10/31
Generation of a Transgenic Zebrafish Line for In Vivo Assessment of Hepatic Apoptosis

2021/08/19
Patient-Derived Cancer Xenograft Zebrafish Model (PDXZ) for Drug Discovery Screening and Personalized Medicine

2021/07/09
Quality Control Protocol for Zebrafish Developmental Toxicity Studies

2020/10/13
Gap junction protein beta 4 plays an important role in cardiac function in humans, rodents, and zebrafish

2020/05/28
A novel orexin antagonist from a natural plant was discovered using zebrafish behavioural analysis

tThe Ca2+-activated protease (Calpain) modulates Ca2+/calmodulin dependent activity of smooth muscle myosin light chain kinase.

                     
1987/06/30

Ito M, Tanaka T, Nunoki K, Hidaka H, Suzuki K.
Biochem Biophys Res Commun. 1987 Jun 30;145(3):1321-8.

Abstract

The Ca2+ -activated neutral protease can proteolyze both Ca2+ -dependent cyclic nucleotide phosphodiesterase and smooth muscle myosin light chain kinase. Ca2+ -dependent cyclic nucleotide phosphodiesterase from rat brain was converted to the Ca2+ -independent active form by Ca2+ -activated protease. The proteolytic effects on myosin light chain kinase of Ca2+-activated protease differed in the presence and absence of the Ca2+-calmodulin (CaM) complex. In the presence of bound CaM, myosin light chain kinase (130k dalton) was degradated to a major fragment of 62 kDa, which had Ca2+/CaM-dependent enzyme and CaM-binding activity. When digestion occurred in the absence of bound CaM, myosin light chain kinase cleaved to a fragment of 60 kDa. This peptide had no enzymatic activity in the presence or absence of the Ca2+-CaM complex. Available evidence suggests that the Ca2+-activated proteases may recognize the conformational change of smooth muscle myosin light chain kinase induced by Ca2+-CaM complex.

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