Products

Product Description

Escherichia coli Beta-lactamase protein (NP_418574, 20 a.a.-377 a.a.) partial recombinant protein with His tag expressed in Escherichia coli.Bioactive Protein,Bioactive Proteins,Bioactive,Active,Functional Protein,Functional Proteins

Host

Escherichia coli

Theoretical MW (kDa)

41.8

Form

Liquid

Preparation Method

Escherichia coli expression system

Purity

> 95% by SDS-PAGE

Activity

Specific activity is > 700 units/mg, in which one unit will hydrolyze 1.0umole of Nitrocefin per minute at pH 7.0 at 37°C.

Quality Control Testing

15% SDS-PAGE under reducing condition and visualized by coomassie blue stain.

15% SDS-PAGE under reducing condition and visualized by coomassie blue stain.

Recommend Usage

SDS-PAGE
The optimal working dilution should be determined by the end user.

Storage Buffer

In 20 mM Tris-HCl, pH 8.0 (10% glycerol)

Storage Instruction

Store at -20°C. For long term storage store at -80°C.
Aliquot to avoid repeated freezing and thawing.