EPO Protein (AA 28-192)
Quick Overview for EPO Protein (AA 28-192) (ABIN2666933)
抗原
See all EPO 蛋白蛋白类型
生物活性
宿主
资源
应用范围
纯度
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产品特性
- AA 28-192
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过滤
- 0.22 μm filtered
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内毒素水平
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Less than 0.01 ng per μg cytokine as determined by the LAL method.
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Erythropoietin (EPO) (AA 28-193) (Active) protein
EPO 宿主: 人 宿主: CHO Cells Recombinant > 95 % as analyzed by SDS-PAGE and HPLC. Active
Erythropoietin (EPO) (Active) protein (His tag)EPO 宿主: 小鼠 宿主: 人细胞 Recombinant >95 % as determined by reducing SDS-PAGE. Active
Erythropoietin (EPO) (AA 1-193) protein (GST tag)EPO 宿主: 人 宿主: 小麦胚 Recombinant WB, ELISA, AA, AP
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应用备注
- Optimal working dilution should be determined by the investigator.
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说明
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Biological activity: ED50 = 0.1 - 0.6 ng/ml, corresponding to a specific activity of 1.67 - 10 x 106 units/mg, as determined by the dose dependent stimulation of TF-1 cells proliferation.
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限制
- 仅限研究用
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状态
- Liquid
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溶解方式
- For maximum results, quick spin vial prior to opening. Stock solutions should be prepared at no less than 10 μg/mL in sterile buffer (PBS, HPBS, DPBS, and EBSS) containing carrier protein such as 1 % BSA or HSA. After dilution, the cytokine can be stored between 2 °C and 8 °C for one month or from -20 °C to -70 °C for up to 3 months.
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缓冲液
- 0.22 μm filtered protein solution is in PBS.
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注意事项
- Avoid repeated freeze/thaw cycles.
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储存条件
- -20 °C
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储存方法
- Unopened vial can be stored between 2°C and 8°C for three months, at -20°C for six months, or at -70°C for one year.
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- EPO (Erythropoietin (EPO))
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别名
- Erythropoietin
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物质类
- Hormone
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背景
- Human Erythropoietin (EPO) was initially purified from urine of a patient with aplastic anemia. EPO is a glycoprotein composed of 40-60 % carbohydrates, and its molecular weight varies from 30-34 kD depending on the carbohydrate percentage. Hypoxia induces erythropoiesis, and hypoxia inducible factor (HIF) is directly involved in EPO expression. HIF is a heterodimer (HIF-1α, HIF-2α, and β subunits) transcription factor, and it is regulated by HIF-prolyl hydroxylase (HIF-PH) that hydroxylates the α subunits, targeting them for ubiquitination and subsequent degradation. HIF-PH is a sensor of levels of iron, oxygen, and metabolic activity. High levels of HIF protein induce EPO production in the kidney and liver, and mobilization of iron to support erythropoiesis. EPO binds to the EPOR, and transcripts of this receptor have been detected in non-erythroid precursors such as endothelial cells and renal proximal epithelial cells, nevertheless, it has been published that functional erythropoietin receptor is not detected in endothelial, cardiac, neuronal, and renal cells. Several transcriptions factors play a role in the expression of EPOR such as GATA 1, Friend of GATA (Fog1), and the erythroid specific factor SCL/Tal 1. EPO has been used in the treatment of anemia associated with chronic kidney disease, in cancer patients on chemotherapy, and in antiviral HIV therapy.
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分子量
- The 165 amino acid recombinant protein has a predicted molecular mass of approximately 18 kDa. The DTT-reduced and non-reduced protein migrate at approximately 37-57 kDa and 35-55 kDa by SDS-PAGE respectively. The N-terminal amino acid is Ala.
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途径
- JAK/STAT Signaling, Hormone Activity, Negative Regulation of intrinsic apoptotic Signaling, Negative Regulation of Transporter Activity
抗原
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