Partial characterization and subunit analysis of major phosphoproteins of egg yolk in the fish, Oryzias latipes
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説明
1. 1. Molecular weight estimation and subunit analysis of four yolk phosphoproteins (PP1-PP4) in medaka (Oryzias latipes) eggs were performed. 2. 2. PP1 (Mr ≈ 210,000) and PP2 (Mr ≈ 180,000) were found to be heterodimers composed of subunits of 113,000 and 94,000 and subunits of 84,000 and 72,000, respectively. 3. 3. PP3 and PP4 [phosvitins of medaka (Murakami et al., 1990, Devl. Growth Differ.32, 619–627)], were monomeric phosphoproteins having mol. wts of about 40,000 and about 20,000, respectively. 4. 4. Lipid composition of the mixture of PP1 and PP2, vitellogenin and yolk were found to be almost the same. PP1 and PP2 are probably lipovitellins of medaka.
収録刊行物
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- Comparative Biochemistry and Physiology Part B: Comparative Biochemistry
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Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 100 587-593, 1991-01-01
Elsevier BV