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促销信息
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Protac血浆蛋白C激活剂 Direct Protein C Plasma Activator

发布者:北京博蕾德生物 发布时间:2025-05-19 分享到:
Protac® 血浆蛋白C激活剂
Direct Protein C Plasma Activator
Cat#245
 
产品描述:
  Protac® 是一种从铜头蛇(Agkistrodon contortix)及其近缘种蛇毒中分离的高效蛋白C激活剂。该成分为单链糖蛋白,经SDS-PAGE分析显示其分子量范围为36,000至42,000Da。

产品特性
  可激活人类及其他脊椎动物的蛋白C。
  激活后的蛋白C(APC)活性可通过以下方式检测:
  1)使用特异性显色底物(如SPECTROZYME® PCa,cat# 336)
  2)采用ACTICLOT® 蛋白C检测试剂盒(cat#ACC-45)测定其对活化部分凝血活酶时间(APTT)的延长效应

产品优势
  1)无需血栓调节蛋白或钙离子即可激活蛋白C
  2)在常规条件下特异性激活蛋白C,不激活人凝血酶原或因子X
  3)对蛋白C缺失血浆不产生显著酰胺水解活性,且不影响其APTT
  4)活性不受多种蛋白酶抑制剂影响

Protac活性单位定义
  1个Protac活性单位(1 Unit)指在37°C条件下,5分钟内可完全激活1毫升正常人血浆中全部蛋白C含量所需的酶量。

产品应用:
1.APTT检测(凝固法)
操作流程:
  1)混合反应物:取25 μL枸橼酸钠抗凝人血浆,加入25 μL Protac溶液(0.1单位/mL),加入25 μL Actin®试剂。
  2)孵育反应:37°℃恒温孵育4分钟
  3)启动凝固反应:加入25 μL 25 mM氯化钙(CaCl₂)溶液
  4)记录凝固时间
2. 显色法检测
操作流程:
  1)混合50 μL枸橼酸钠抗凝人血浆与50 μL Protac溶液(0.5U/mL)
  2) 37°C恒温孵育5分钟
  3) 加入800μL 50 mM Tris-HCl缓冲液(pH 8.4)
  4) 加入100 μL 4 mM SPECTROZYME® PCa显色底物(BioMedica Diagnostics Cat#336)
  5) 405 nm波长处测定每分钟吸光度变化值(ΔOD/min)
国际标准)。

产品保存:
  冻干品:2°C–8°C保存,重悬后 2°C–8°C保存 ≤30天,-20°C保存 ≤1个月

产品订购:
品牌 货号 产品名称 英文名称 规格
Biomedica Diagnostics 245 蛋白C激活剂 Direct Protein C Plasma Activator  3U/支
 
更多产品详情,请垂询Biomedica Diagnostic 中国区总代理北京博蕾德生物科技有限公司

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