Egg jelly induces the phosphorylation of histone H3 in spermatozoa of the sea urchin Arbacia punctulata.
Egg jelly induces the phosphorylation of histone H3 in spermatozoa of the sea urchin Arbacia punctulata.
复制标题
蛋冻诱导海胆 Arbacia punctulata 精子中组蛋白 H3 的磷酸化。
DOI:
10.1016/0012-1606(89)90302-3
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发表时间:
1989
影响因子:
2.7
通讯作者:
Aukerman,M
中科院分区:
文献类型:
--
作者:
Vacquier,VD;Porter,DC;Keller,SH;Aukerman,M
When spermatozoa ofArbacia punctulataare labeled with32P and treated with soluble egg jelly, radiolabel is incorporated into histone H3. The time course of labeling correlates with the period of chromatin decondensation of sperm pronuclei in eggs. Phosphorylation is on serine and may result from increased turnover of phosphate on H3. The macromolecular fraction of egg jelly (and not the peptide fraction) is the inducer of H3 phosphorylation. The reaction is dependent on external Ca2+and is induced by monensin and A23187. H3 phosphorylation is not induced by the phosphodiesterase inhibitor IBMX and relatively high (250 μM) concentrations of the protein kinase inhibitor H8 are needed to block the reaction, suggesting that it is cAMP independent. A surprising finding is that merely diluting the cells into Na+free media is the most effective method to induce the radiolabeling of H3. These results are in contrast to findings on the egg jelly induced phosphorylation of histone H1 inS. purpuratusspermatozoa. These species differences must reflect the great evolutionary divergence between these two sea urchin species in the mechanism of regulation of the phosphorylation of nuclear proteins during fertilization.
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影响因子:
64.8
作者:
SINGH, S;LOWE, DG;GARBERS, DL
通讯作者:
GARBERS, DL
影响因子:
--
作者:
Vacquier,VD
通讯作者:
Vacquier,VD
影响因子:
2.7
作者:
Lee,HC
通讯作者:
Lee,HC
影响因子:
2.7
作者:
D. Porter;V. Vacquier
通讯作者:
V. Vacquier
影响因子:
64.5
作者:
I. Sures;Jean C. Lowry;L. Kedes
通讯作者:
L. Kedes