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Many of the effects of Ca2+ signaling are mediated through the Ca2+/calmodulin complex and its acceptors, the Ca2+/calmodulin-dependent protein kinases, including PSKH1. Studies of the proteins involved in the calcium metabolism in oysters will help elucidate the pearl formation mechanism. This paper describes a full-length PSKH1 cDNA isolated from pearl oyster Pinctada fucata. Oyster PSKH1 shares 65% homology with human PSKH1 and 48% similarity with rat CaM kinase I in the amino acid sequence, and contains a calmodulin-binding domain. The results of semi-quantitative reverse transcription-polymerase chain reaction and in situ hybridization revealed that oyster PSKH1 mRNA is highly expressed in the outer epithelial cells of the mantle pallial and in the gill epithelial cells. These studies provide important information describing the complex Ca2+ signaling mechanism in oyster calcium metabolism.
Many of the effects of Ca2 + signaling are mediated through the Ca2 + / calmodulin complex and its acceptors, the Ca2 + / calmodulin-dependent protein kinases, including PSKH1. Studies of the proteins involved in the calcium metabolism in oysters will help elucidate the pearl formation mechanism. Oyster PSKH1 shares 65% homology with human PSKH1 and 48% similarity with rat CaM kinase I in the amino acid sequence, and contains a calmodulin-binding domain. The results of this paper describe a full-length PSKH1 cDNA isolated from pearl oyster Pinctada fucata. of semi-quantitative reverse transcription-polymerase chain reaction and in situ hybridization revealed that oyster PSKH1 mRNA is highly expressed in the outer epithelial cells of the mantle pallial and in the gill epithelial cells. These studies provide important information describing the complex Ca2 + signaling mechanism in oyster calcium metabolism.