R&D Systems™ Recombinant S. pneumoniae beta(1-4)-Galactosidase

Description

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility.

Measured by its ability to cleave a fluorogenic substrate, 4-Methylumbelliferyl-beta-D-galactopyranoside. The specific activity is >600 pmol/min/μg, as measured under the described conditions.

Specifications

• Accession Number: YP_815516
• For Use With (Application): Enzyme Activity
• Formulation: Supplied as a 0.2 μm filtered solution in Tris and NaCl.
• Molecular Weight (g/mol): M.W. (Observed): 62 kDa, reducing conditions; M.W. (theoretical): 70 kDa
• Name: beta (1-4)-Galactosidase
• Quantity: 100 μg
• Source: E. coli-derived s. pneumoniae beta (1-4)-Galactosidase protein Thr2-Leu595, with an N-terminal Met and a 6-His tag
• Storage Requirements: Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 6 months from date of receipt, -70°C as supplied. 3 months, -70°C under sterile conditions after opening.
• Endotoxin Concentration: <1.0 EU / 1 μg of the protein by the LAL method.
• Conjugate: Unconjugated
• Recombinant: Recombinant
• Purity or Quality Grade: >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
• Protein: beta 1-4)-Galactosidase