BirA Protein, E. coli, Recombinant (His & MBP)

The enzyme BirA is a key reagent because of its ability to biotinylate proteins at a specific residue in a recognition sequence. This enzyme is used to biotinylate the C termini of membrane proteins, allowing these proteins to be tetramerized by binding to streptavidin. Because of the specificity of the biotinylation at the C terminus, the orientation of the membrane proteins on the streptavidin is equivalent to that of the native protein on the cell surface. These tetrameric proteins can be used to study protein receptor-ligand interactions at the cell surface, and site-specific biotinylation can be used to study proteins in vitro using a defined orientation. The biotinylation of histones by BirA ligase is consistent with the proposed role of human HCS in chromatin. The N-terminal BirA domain is required for both transcriptional regulation of biotin synthesis and biotin protein ligase activity.

规格	价格/CNY		数量
100 μg	￥ 3,820	现货
200 μg	￥ 6,530	5日内发货
500 μg	￥ 13,220	5日内发货

规格

价格/CNY

货期

数量

100 μg

￥ 3,820

现货

200 μg

￥ 6,530

5日内发货

500 μg

￥ 13,220

5日内发货

生物活性

Testing in progress

产品描述

种属	E. coli
表达系统	E. coli
标签	His, MBP
蛋白编号	P06709
别名	BirA, dhbB, bioR
蛋白构建	The E.coil BirA (P06709) (Met1–Lys321) was fused with an N-terminal polyhistidine-tagged MBP tag at the N-terminus.
蛋白纯度	> 95 % as determined by SDS-PAGE
分子量	36.9 kDa (predicted)

内毒素	Please contact us for more information.
缓冲液	Lyophilized from a solution filtered through a 0.22 μm filter, containing 50 mM Tris, 100 mM NaCl, 10% Glycerol, pH 8.0.Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
复溶方法	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
存储	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
运输方式	In general, Lyophilized powders are shipping with blue ice.
研究背景	The enzyme BirA is a key reagent because of its ability to biotinylate proteins at a specific residue in a recognition sequence. This enzyme is used to biotinylate the C termini of membrane proteins, allowing these proteins to be tetramerized by binding to streptavidin. Because of the specificity of the biotinylation at the C terminus, the orientation of the membrane proteins on the streptavidin is equivalent to that of the native protein on the cell surface. These tetrameric proteins can be used to study protein receptor-ligand interactions at the cell surface, and site-specific biotinylation can be used to study proteins in vitro using a defined orientation. The biotinylation of histones by BirA ligase is consistent with the proposed role of human HCS in chromatin. The N-terminal BirA domain is required for both transcriptional regulation of biotin synthesis and biotin protein ligase activity.

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重组蛋白稀释计算器

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Mass (in vial)

Desired Reconstitution Concentration

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BirA Protein, E. coli, Recombinant (His & MBP)

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