翻訳と辞書
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・ Phosphoinositide phospholipase C
・ Phosphoinositide-dependent kinase-1
・ Phosphoketolase
・ Phospholamban
・ Phosphole
・ Phospholipase
・ Phospholipase A
・ Phospholipase A1
・ Phospholipase A2
・ Phospholipase B
・ Phospholipase C
・ Phospholipase D
・ Phospholipase D1
・ Phospholipid
・ Phospholipid acyltransferase
Phospholipid scramblase
・ Phospholipid transfer protein
・ Phospholipid-derived fatty acids
・ Phospholipid-hydroperoxide glutathione peroxidase
・ Phospholipid-translocating ATPase
・ Phospholipidosis
・ Phosphomannan mannosephosphotransferase
・ Phosphomannomutase
・ Phosphomethylpyrimidine kinase
・ Phosphomethylpyrimidine synthase
・ Phosphomevalonate kinase
・ Phosphomevalonic acid
・ Phosphomimetics
・ Phosphomolybdic acid
・ Phosphomonoesterase


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Phospholipid scramblase : ウィキペディア英語版
Phospholipid scramblase


Scramblase is a protein responsible for the translocation of phospholipids between the two monolayers of a lipid bilayer of a cell membrane. In humans, phospholipid scramblases (PLSCRs) constitute a family of five homologous proteins that are named as hPLSCR1–hPLSCR5. Scramblases are not members of the general family of transmembrane lipid transporters known as flippases. Scramblases are distinct from flippases and floppases. In fact, scramblases , flippases and floppases are three different types of enzymatic groups of phospholipid transportation enzymes. The inner-leaflet facing the inside of the cell contains negatively charged amino-phospholipids and phosphatidylethanolamine. The outer-leaflet, facing the outside environment, contains phosphatidylcholine and sphingomyelin. Scramblase is an enzyme, present in the cell membrane, that can transport (''scramble'') the negatively charged phospholipids from the inner-leaflet to the outer-leaflet, and vice versa.
==Expression==

Whereas hPLSCR1, -3, and -4 are expressed in a variety of tissues with few exceptions, expression of hPLSCR2 is restricted only to the testis. hPLSCR4 is not expressed in peripheral blood lymphocytes, whereas hPLSCR1 and -3 were not detected in the brain. However, the functional significance of this differential gene expression is not yet understood. While the gene and the mRNA of hPLSCR5 provide evidence of its existence, the protein has yet to be described in the literature.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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