Structure and action of sperm activating peptides from the egg jelly of a sea urchin, Anthocidaris crassispina.

Structure and action of sperm activating peptides from the egg jelly of a sea urchin, Anthocidaris crassispina.
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来自海胆(Anthocidaris crassispina)卵冻的精子激活肽的结构和作用。

DOI:
10.1016/0006-291x(83)91553-x
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发表时间:
1983
影响因子:
3.1
通讯作者:
S. Isaka
S. Isaka
中科院分区:
生物学4区
文献类型:
--
作者:
K. Nomura;N. Suzuki;H. Ohtake;S. Isaka

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摘要 从日本海胆 Anthocidaris crassispina 卵的果冻层中分离出三种同质的精子激活肽 (SAP),其中两种已被测序。在 pH 6.8 时,它们可以刺激精子呼吸 20-30 倍,达到正常海水(pH 8.2)中的水平,并且低至 100 pM 左右的 SAP 即可实现半最大激活。刺激活性既依赖于 pH 值,也依赖于 Na+。胰凝乳蛋白酶片段(res. 3-10)的活性比母体 SAP 低 10 4-10 5 倍,热解片段(res. 4-10)的活性比母体 SAP 低 10 6 倍。 SAP 的圆二色光谱表明它们在水溶液中具有无序结构。
Abstract Three Sperm Activating Peptides (SAPs) have been isolated to homogeneity from the jelly coat of the eggs of a Japanese sea urchin, Anthocidaris crassispina, and two of them have been sequenced. At pH 6.8 they can stimulate the sperm respiration 20–30 fold, to the level in normal seawater (pH 8.2), and the half-maximal activation was achieved by SAPs as low as around 100 pM. The stimulative activity was both pH-and Na+-dependent. The chymotryptic fragments (res. 3–10) were 10 4–10 5 times less active, and the thermolytic fragment (res. 4–10) was 10 6 times less active than the parent SAP. CD spectra of SAPs indicate that they have unordered structure in aqueous solution.
speract 和莫能菌素对海胆精子的钠依赖性激活。
DOI: --
发表时间: 1981
期刊: The Journal of biological chemistry
影响因子: --
作者:
Hansbrough,JR;Garbers,DL
通讯作者: Garbers,DL
speract 和 speract 类似物的氨基酸序列和化学合成。
DOI: --
发表时间: 1982
期刊: The Journal of biological chemistry
影响因子: --
作者:
Garbers,DL;Watkins,HD;Hansbrough,JR;Smith,A;Misono,KS
通讯作者: Misono,KS
DOI: --
发表时间: 1983
期刊: The Journal of biological chemistry
影响因子: --
作者:
Repaske,DR;Garbers,DL
通讯作者: Garbers,DL