Antithrombin III, a serpin family protease inhibitor, is a major heparin binding protein in porcine aqueous humor.

Antithrombin III, a serpin family protease inhibitor, is a major heparin binding protein in porcine aqueous humor.
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抗凝血酶 III 是一种丝氨酸蛋白酶抑制剂家族蛋白酶抑制剂,是猪房水中的主要肝素结合蛋白。

DOI:
10.1006/bbrc.2000.2728
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发表时间:
2000
期刊:
Biochemical and biophysical research communications.
影响因子:
--
通讯作者:
Epstein,DL
Epstein,DL
中科院分区:
--
文献类型:
--
作者:
Rao,PV;Allingham,RR;Herndon,LW;Epstein,DL

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我们的假设是房水中的蛋白质可能通过小梁网和巩膜网参与了流出设施的调节。在这项研究中,我们分析了猪房水中存在的肝素结合蛋白的特征,以鉴定和表征具有肝素结合亲和力的分泌蛋白。对猪房水进行肝素-sepharose亲和层析,得到一个≈60 kDa的蛋白作为肝素的主要结合物。该蛋白被肝素特异性地从色谱柱中洗脱。该蛋白的n端序列和免疫交叉反应性证实了其抗凝血酶III的身份。来自不同物种的房水,以及来自人小梁网、施莱姆氏管和晶状体上皮的细胞,含有可检测量的抗凝血酶III。基于已知的抗凝血酶III在内皮细胞中的抗凝血功能和对前列环素产生的影响,我们有理由推测房水中的抗凝血酶III可能影响小梁和膜神经网络的生理机能,从而调节眼压。
Our hypothesis is that the proteins in aqueous humor may be involved in the regulation of outflow facility through the trabecular meshwork and uveoscleral meshwork. In this study, we analyzed the profile of heparin-binding proteins present in porcine aqueous humor to identify and characterize secretory proteins with a binding affinity for heparin. A single step involving heparin-sepharose affinity chromatography of porcine aqueous humor yielded a ≈60 kDa protein as the major heparin-binding species. This protein was specifically eluted from the column by heparin. The N-terminal sequence and immunological cross reactivity of this protein confirmed its identity as antithrombin III. Aqueous humor from different species, as well as cells from human trabecular meshwork, Schlemm's canal, and lens epithelium, contained detectable amounts of antithrombin III. Based on its known anticoagulative function in endothelial cells and effects on the production of prostacyclin, it is reasonable to speculate that antithrombin III present in aqueous humor might influence the physiology of the trabecular and uveoscleral meshwork and thereby regulate intraocular pressure.
施累姆氏管内皮细胞的分离、培养和表征。
DOI: --
发表时间: 1998
期刊: Investigative ophthalmology & visual science.
影响因子: --
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DOI: --
发表时间: 1986
期刊: A M A Archives of Ophthalmology
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影响因子: 4.4
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