Biotinylated E. coli CheY Protein, His,Avitag™ (MALS verified)

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CHY-E82E3-25ug
$368.00
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CHY-E82E3-200ug
$1,449.00
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CHY-E82E3
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Synonyms

CheY

Source

Biotinylated E. coli CheY Protein, His,Avitag (CHY-E82E3) is expressed from E. coli cells. It contains AA Ala 2 - Met 129 (Accession # P0AE67).

Predicted N-terminus: Met

Molecular Characterization

This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).

The protein has a calculated MW of 17.7 kDa. The protein migrates as 15-17 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE).

Labeling

Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

Protein Ratio

0.7-1.0 as determined by the SABA assay / HABA assay / binding ELISA.

Purity

>90% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

Reconstitution

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

Shipping and Storage

This product is shipped at ambient temperature.

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:
  • -20°C to -70°C for 12 months in lyophilized state;
  • -70°C for 3 months under sterile conditions after reconstitution.

Background Introduction

CheY is acetylated at lysine residues 92 and 109 by acetyl-CoA synthase (Acs). [More information is available at EcoGene: EG10150]. Chemotaxis regulator protein CheY is activated through phosphorylation of an aspartate residue by the CheA(L)-his-P protein.