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Recombinant E.coli Tryptophan Synthase α Chain/Trp A Protein

Price: ¥4200 ¥2200

Size:
50μg 10μg
  • 表达系统: E.coli
  • 蛋白编码: P0A877
别称
Tryptophan synthase alpha chain;trpA;
表达系统
E.coli
序列
Met1-Ser268
蛋白编码
P0A877
种属
E.coli
计算分子量
28.7 kDa
表观分子量
27 kDa
标签
None
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 PBS, pH 7.4.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 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
Tryptophan synthase is an enzyme that catalyzes the final two steps in the biosynthesis of tryptophan. It is commonly found in Eubacteria, Archaebacteria, Protista, Fungi, and Plantae, but is absent from animals such as humans. Tryptophan synthase typically exists as an α-ββ-α complex.The alpha subunit is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate: L-serine + 1-C-(indol-3-yl)glycerol 3-phosphate = L-tryptophan + D-glyceraldehyde 3-phosphate + H2O.The beta subunits catalyze the irreversible condensation of indole and serine to form tryptophan in a pyridoxal phosphate (PLP) dependent reaction. Their assembly into a complex leads to structural changes in both subunits resulting in reciprocal activation.


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