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Merck

C0412

Sigma-Aldrich

伴刀豆球蛋白A 来源于洋刀豆 (刀豆)

Type IV-S, lyophilized powder, γ-irradiated, BioReagent, suitable for cell culture

别名:

刀豆素 A

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About This Item

CAS号:
EC號碼:
MDL號碼:
分類程式碼代碼:
23151817
NACRES:
NA.32
价格与库存信息目前不能提供

品質等級

無菌

γ-irradiated

種類

Type IV-S

產品線

BioReagent

形狀

lyophilized powder

技術

cell culture | mammalian: suitable

雜質

salt, essentially free

溶解度

PBS: 5 mg/mL, slightly hazy
H2O: soluble, slightly hazy

儲存溫度

−20°C

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應用

来自洋刀豆(刀豆)的伴刀豆球蛋白A已用于以下情形:
  • 诱导脾胚芽生殖[1]
  • 从B6和lpr脾细胞生成ConA blast靶标[2]
  • 刺激雌激素和安慰剂治疗小鼠的脾淋巴细胞[3]

生化/生理作用

刀豆素 A 无血型特异性,但对末端 α-D-甘露糖基和 α-D-葡糖基残基具有亲和力。需要 Ca2+ 和 Mn2+ 离子存在才能显示活性。刀豆素 A 在 pH 6.5 或更低的条件下解离为二聚体。pH 在 5.8 至 7.0 之间时,刀豆素 A 以四聚体形式存在;pH 高于 7.0 时,形成更高的聚合体。根据聚合程度不同,刀豆素 A 可能显示出具有促有丝分裂的活性。琥珀酰化可以生成一种能够在 pH 高于 5.6 时仍保持二聚体形式的活性二聚体。

分析報告

据报道,凝集活性以μg/ml表示,并且在Ca2+ 和Mn2+ 浓度为1 mg/ml、pH 6.8的磷酸缓冲盐溶液中进行连续稀释测定。该活性是在25°C下孵育1小时的2%人红细胞悬浮液可以凝集的最低浓度。

象形圖

Health hazard

訊號詞

Danger

危險聲明

危險分類

Repr. 2 - Resp. Sens. 1 - Skin Sens. 1

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


历史批次信息供参考:

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Questions

  1. ConA 제품 (C0412)에 관해 질문 드립니다. ConA가 Ca2+, Mn2+ 이온이 존재해야 활성화가 된다고 하는데 해당 제품은 powder형태이며 이는 따로 용액이 필요합니다. 그렇다면 이 제품 안에 저 금속 이온이 함께 들어있는 건지, 아니면 Sigma 제품 중에 이 제품을 혼합할 수 있는 PBS가 따로 있는지(있다면 카탈로그 번호 알려주셨으면 합니다) 궁금합니다.

    1 answer
    1. Concanavalin A has 2 metal binding sites per monomer. Calcium and Manganese are required to bind these sites in order for sugar binding to occur. It is recommended to prepare stock solutions in PBS containing Ca2+ and Mn2+.

      See the link below to the product datasheet which includes preparation instructions:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/331/341/c0412dat.pdf

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