Soluble adenylyl cyclase of sea urchin spermatozoa.

Soluble adenylyl cyclase of sea urchin spermatozoa.
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海胆精子的可溶性腺苷酸环化酶。

DOI:
10.1016/j.bbadis.2014.07.011
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发表时间:
2014-12
影响因子:
6.2
通讯作者:
Beltran, Carmen
Beltran, Carmen
中科院分区:
生物学2区
文献类型:
--
作者:
Vacquier, Victor D.;Loza-Huerta, Arlet;Garcia-Rincon, Juan;Darszon, Alberto;Beltran, Carmen

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受精是有性生殖的关键步骤,需要cAMP浓度的协调变化。值得注意的是,精子(精子)是具有极高腺苷酸环化酶(AC)活性的细胞类型之一。由于这种第二信使的产生和消耗需要局部调节,可溶性AC(sAC)的发现拓宽了我们对这些细胞如何处理这些要求的理解。此外,由于sAC直接受HCO 3-调节,因此它能够将CO2/HCO 3-/pH变化转化为cAMP水平。精子的基本功能,如成熟,运动调节和顶体反应受到cAMP的影响;这对于海胆(SU)的精子尤其如此,海胆是一种生物体,已经成为受精研究的模型超过130年。本文综述了SU精子sAC的发现及其特性,并讨论了其在精子生理中的作用。
Fertilization, a key step in sexual reproduction, requires orchestrated changes in cAMP concentrations. It is notable that spermatozoa (sperm) are amongst the cell types with extremely high adenylyl cyclase (AC) activity. As production and consumption of this second messenger need to be locally regulated, the discovery of soluble AC (sAC) has broadened our understanding of how such cells deal with these requirements. In addition, because sAC is directly regulated by HCO3- it is able to translate CO2/HCO3-/pH changes into cAMP levels. Fundamental sperm functions such as maturation, motility regulation and the acrosome reaction are influenced by cAMP; this is especially true for sperm of the sea urchin (SU), an organism that has been a model in the study of fertilization for more than 130 years. Here we summarize the discovery and properties of SU sperm sAC, and discuss its involvement in sperm physiology.
DOI: 10.1042/bj2970437
发表时间: 1994-02-01
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