Trp A Protein, E. coli, Recombinant is expressed in E. coli expression system. The predicted molecular weight is 27 KDa and the accession number is P0A877.
| 説明 |
Trp A Protein, E. coli, Recombinant is expressed in E. coli expression system. The predicted molecular weight is 27 KDa and the accession number is P0A877. |
| Species |
E. coli
|
| Expression Host |
E. coli
|
| Tag |
Tag Free
|
| Accession Number |
P0A877
|
| 別名 |
Tryptophan synthase α chain, trpA, Tryptophan synthase alpha chain
|
| Amino Acid |
Met1-Ser268
|
| Construction |
Met1-Ser268
|
| Protein Purity |
Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
|
| 分子量 |
27 KDa (reducing condition)
|
| Endotoxin |
< 0.1 ng/µg (1 EU/µg) as determined by LAL test.
|
| Formulation |
Supplied as a 0.2 μm filtered solution of PBS, pH 7.4.
|
| Stability & Storage |
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.
|
| Shipping |
In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice.
|
| Research Background |
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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