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名称
伴刀豆球蛋白A 来源于洋刀豆 (刀豆)
别名
刀豆蛋白 | 刀豆凝集素A
英文别名
Con A | ConA
货号
C755157-25mg
包装规格
25mg
级别
BioReagent
产品介绍
伴刀豆球蛋白A(con A)是从刀豆中精制的植物凝集素。它是一种四聚体蛋白,有四个相同的28kDa亚基。Con A具有连接多种糖蛋白的甘露糖残基的能力,并且可以刺激淋巴细胞。Con-A是从刀豆中分离出的一种凝集素。Con-A不是糖蛋白。Con-A的单体分子量为25,500。在pH 5.5时, Con-A以二聚体形式存在;而在pH>7时,则以四聚体形式存在。 Con-A不含半胱氨酸残基。与其他大多数凝集素不同,Con-A是一种金属蛋白,需要过渡金属离子如锰,加上钙离子才能结合。 处理说明 溶液稳定性随着氯化钠浓度的增加而提高。使用20 mM Tris盐酸缓冲液,含1 mM氯化钙和0.5 mM氯化锰pH7.0,以及指定浓度的氯化钠,获得了以下溶液稳定性数据: 在室温下,含有1 M氯化钠的缓冲液中,10天后活性损失小于5%。 在室温下,含有0.2 M氯化钠的缓冲液中,10天后活性损失8%。 在室温下,含有15%氯化钠 的缓冲液中,10天后活性损失15%。 在含有0.1 M氯化钠的缓冲液中,温度为零。在0-4摄氏度下,于0.1 M Tris + 80 mM甘氨酸缓冲液pH 5.0中加入3 mM氯化钙和3 mM氯化锰后,四到六周内观察到活性损失为零。 Con A可冷冻和解冻,而不会明显丧失活性。 Con A可在pH 3.0-3.2的条件下耐受45℃热处理2小时,在6-8℃条件下耐受16- 18小时。 产品应用 来自刀豆(Canavalia ensiformis)的伴刀豆球蛋白A已被用于: 1、作为T淋巴细胞有丝分裂原在淋巴细胞增殖测定中确定与有机氯污染物(OC)的相关性 2、用于体外刺激T细胞杂交瘤、 BW5147细胞和原代CD4+ T细胞进行T细胞疫苗接种和肝炎的诱导 3、在抑制小鼠T细胞增殖试验中刺激小鼠脾细胞 4、在有丝分裂原测定中刺激脾脏
生化机理
D-mannose specific lectin. Displays antiviral activity and therefore may contribute to defense against infections. Miscellaneous Binds one manganese (or another transition metal) ion and one calcium ion. The metal ions are essential for the saccharide-binding and cell-agglutinating activities. Displays strong antiviral activity against herpes simplex virus type 1 (MIC=0.32 ug/ml) and the rubella virus (MIC=7.2 ug/ml).
生物活性
<64 μg/mL agglutination activity
来源
天然
Reaxy-Rn
39344595
种属
刀豆(Jack Bean)
Safety
「No Dangerous Attributes」
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Research chemical 25mg

Research chemical 25mg; supplied for laboratory research, analysis, inspection, and scientific procurement use; specifications: 25mg.

item number:C755157-25mg
Product model:25mg
level: 25mg
Lead Time:30days
sold 380 Items
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25mg

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