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产蛋母鸡肝脏切片体外合成卵黄高磷蛋白

THE SYNTHESIS OF PHOSVITIN IN VITRO BY SLICES OF LIVER FROM THE LAYING HEN.

作者信息

HEALD P J, MCLACHLAN P M

出版信息

Biochem J. 1965 Jan;94(1):32-9. doi: 10.1042/bj0940032.

Abstract
  1. Slices of liver from laying hens incorporated Na(2) (14)CO(3) and NaH(2) (32)PO(4) into phosvitin. Slices of liver from immature birds did not do so to any appreciable extent. The (32)P was incorporated into O-phosphorylserine in the phosvitin molecule. 2. Kidney, spleen, muscle, large and small intestine, ovary and oviduct from laying birds did not incorporate Na(2) (14)CO(3) into phosvitin. 3. Slices of liver from laying hens carried out a net synthesis of phosphoprotein under the standard conditions of incubation. Slices from the livers of immature pullets did not do so. 4. Liver from the laying hen incorporated [2-(14)C]glycine, [3-(14)C]serine and [2-(14)C]glutamic acid into phosvitin. Part of the glycine was shown to be present as serine in the final product. 5. Slices of liver from immature birds treated with oestradiol synthesized phosvitin from [2-(14)C]glycine, but the addition of oestrogens in vitro to slices from untreated immature birds did not promote synthesis during a 3 hr. incubation period.
摘要
  1. 产蛋母鸡的肝脏切片将Na₂¹⁴CO₃和NaH₂³²PO₄掺入卵黄高磷蛋白中。未成熟鸟类的肝脏切片在任何可观程度上都未做到这一点。³²P被掺入卵黄高磷蛋白分子中的O-磷酸丝氨酸中。2. 产蛋鸟类的肾脏、脾脏、肌肉、大肠和小肠、卵巢和输卵管未将Na₂¹⁴CO₃掺入卵黄高磷蛋白中。3. 产蛋母鸡的肝脏切片在标准孵育条件下进行了磷蛋白的净合成。未成熟小母鸡肝脏的切片未进行此过程。4. 产蛋母鸡的肝脏将[2-(¹⁴)C]甘氨酸、[3-(¹⁴)C]丝氨酸和[2-(¹⁴)C]谷氨酸掺入卵黄高磷蛋白中。最终产物中部分甘氨酸以丝氨酸形式存在。5. 用雌二醇处理的未成熟鸟类的肝脏切片从[2-(¹⁴)C]甘氨酸合成了卵黄高磷蛋白,但在3小时的孵育期内,向未处理的未成熟鸟类的切片中体外添加雌激素并未促进合成。

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Proc Soc Exp Biol Med. 1961 Oct;108:234-8. doi: 10.3181/00379727-108-26901.
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