Recombinant E.coli Tryptophan Synthase β Chain/Trp B Protein (His Tag)
Product Specifications
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.
Abbreviation
Tryptophan Synthase β Chain; Trp B
Synonyms
Tryptophan synthase beta chain; trpB
UniProt
P0A879
Accession Number
P0A879
Expression System
E.coli
Tag
N-His
Sequence
Thr2-Ile397
Endotoxin
< 1.0 EU per μg of the protein as determined by the LAL method.
Purity
> 95 % as determined by reducing SDS-PAGE.
Bioactivity
Not validated for activity
Reconstitution
Not Applicable
Shipping Conditions
This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at < - 20°C.
Storage Conditions
Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles.
Calculated Molecular Weight
43.8 kDa
Observed Molecular Weight
38-48 kDa
Formulation
Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 8% Sucrose, 0.05% Tween 80, pH 8.5.
Species
E.coli
Available Sizes
Documents
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