Recombinant Human MPO (C-10His)
- 货号：EPT086
- 价格：￥1,080.00 元
- 点击：882
产品介绍
基本信息
| 规格 | 50ug |
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| 表达宿主 | Human Cells |
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| 标签 | C-10His |
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物理性质
| 分子量 | 80.3 KDa |
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| 表观分子量 | 85-95 KDa, reducing conditions |
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| 形态 | Lyophilized from a 0.2 μm filtered solution of 20mM Tris-HCl, 150mM NaCl, pH 8.0. |
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| 纯度 | Greater than 95% as determined by reducing SDS-PAGE. |
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活性与内毒素
| 内毒素水平 | Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
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储存与运输
| 溶解方法 | Always centrifuge tubes before opening.Do not mix by vortex or pipetting.
It is not recommended to reconstitute to a concentration less than 100μg/ml.
Dissolve the lyophilized protein in distilled water.
Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
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| 储存方法 | Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7°C for 2-7 days.
Aliquots of reconstituted samples are stable at < -20°C for 3 months. |
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| 运输条件 | The product is shipped at ambient temperature.
Upon receipt, store it immediately at the temperature listed below. |
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详细说明
| 背景说明 | Myeloperoxidase (MPO) is a heme-containing enzyme belonging to the XPO subfamily of peroxidases. It is an abundant neutrophil and monocyte glycoprotein that catalyzes the hydrogen peroxide-dependent conversion of chloride, bromide, and iodide to multiple reactive species. Post-translational processing of MPO involves the insertion of a heme moiety and the proteolytic removal of both a propeptide and a 6 aa internal peptide. This results in a disulfide-linked dimer composed of a 60 kDa heavy and 12 kDa light chain that associate into a 150 kDa enzymatically active tetramer. The tetramer contains two heme groups and one disulfide bond between the heavy chains. Alternate splicing generates two additional isoforms of MPO, one with a 32 aa insertion in the light chain, and another with a deletion of the signal sequence and part of the propeptide. Human and mouse MPO share 87% aa sequence identity. MPO activity results in protein nitrosylation and the formation of 3-chlorotyrosine and dityrosine crosslinks. MPO is also associated with a variety of other diseases, and inhibits vasodilation in inflammation by depleting the levels of NO. Serum albumin functions as a carrier protein during MPO movement to the basolateral side of epithelial cells. MPO is stored in neutrophil azurophilic granules. Upon cellular activation, it is deposited into pathogen-containing phagosomes. |
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