Recombinant Human MAG/Siglec-4a Protein (His Tag)
Price:
- 表达系统: HEK293 Cells
- 蛋白编码: P20916
别称 |
Myelin-Associated Glycoprotein;Siglec-4a;MAG;GMA
|
表达系统 |
HEK293 Cells
|
序列 |
Gly20-Pro516
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蛋白编码 |
P20916
|
种属 |
Human
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计算分子量 |
55.7 kDa
|
表观分子量 |
75-110 kDa
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标签 |
C-His
|
纯度 |
> 95 % as determined by reducing SDS-PAGE.
|
内毒素 |
< 1.0 EU per μg of the protein as determined by the LAL method.
|
保存条件 |
Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
|
运输条件 |
This product is provided as lyophilized powder which is shipped with ice packs.
|
制剂 |
Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.2.
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
复溶方法 |
Please refer to the printed manual for detailed information.
|
背景 |
Human Myelin-Associated Glycoprotein,also known as MAG, Siglec-4,is a cell membrane glycoprotein that is a member of the SIGLEC family of proteins.MAG contains 4 Ig-like C2-type domains and 1 Ig-like V-type domain.MAG functions as an adhesion molecule during neural development. MAG is believed to be involved in myelination during nerve regeneration. it is a adhesion molecule in postnatal neural development that mediates sialic-acid dependent cell-cell interactions between neuronal and myelinating cells and Preferentially binds to alpha-2,3-linked sialic acid. Soluble MAG, which is released from myelin in large quantities, has been identified in normal human tissues and in tissues from patients with neurological disorders. It is believed that this soluble MAG might contribute to the lack of CNS neuron regeneration after injury.
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Q1:重组蛋白有活性吗?可以做活性检测吗?
活性说明的见说明书bio-activity部分;如果说明书显示没有生物活性或则显示生物活性检测中,则说明这个蛋白没有生物活性数据,需要客户自己检测。
Q2:蛋白的运输条件是什么?
我们的蛋白有液体和冻干粉2种形式,一般来说冻干粉可以用冰袋、蓝冰、干冰运输;液体可以用蓝冰或干冰运输。
Q3:蛋白Buffer里是否含有denaturants(变性剂)?
我们在售重组蛋白一般不含变性剂,具体见说明书的formulation信息。常见变性剂有:尿素和盐酸胍。
Q4:无标签蛋白纯化方式?
蛋白的纯化方式一般通过标签进行亲和纯化,无标签的蛋白是在纯化后进行了标签切除。
Q5:蛋白是通过什么方式纯化的?
一般通过纯化标签进行亲和纯化,常规有镍柱/His Tag、protein AG/Fc tag、标签抗体凝胶等。
Q6:蛋白发货形式可以是冻干粉吗?可以发液体吗?
默认按照说明书标注的形式发货;如果有特殊需求,需要根据蛋白情况确定。原则上,冻干粉蛋白可以发液体形式,液体蛋白不能发冻干粉形式。
Q7:蛋白可以用于细胞培养/注射小鼠吗?
内毒素含量小于0.1 ng/μg (1 EU/μg)的蛋白都可以用于细胞培养/注射小鼠。
实验操作视频
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