BlueSKY Prestained Protein Ladder

Description

The BlueSKY Prestained Protein Ladder is a blue protein standard with 11 pre-stained proteins covering a wide range molecular weights from 10 to180 kDa. Proteins are covalently coupled with a blue chromophore, and two reference bands (at 25 kDa and 72 kDa respectively) are enhanced in intensity when separated on SDS-PAGE (Tris-glycine buffer).
The BlueSKY Prestained Protein Ladder is designed for monitoring protein separation during SDS-polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon, or nitrocellulose) and for approximating the size of proteins.
The ladder is supplied in gel loading buffer and is ready to use. Do not heat, dilute, add reducing agent before loading.
 

Contents

Approximately 0.1~0.5 mg/ml of each protein in the buffer (20 mM Tris-phosphate, pH 7.5 at 25°C), 2 % SDS, 0.2 mM Dithiothreitol, 3.6 M Urea, and 15 % (v/v) Glycerol).
 

Quality Control

Under suggested conditions, BlueSKY  Prestained Protein Ladder resolves 11 major bands in 15% SDS-PAGE (Tris-glycine buffer) and after Western blotting to nitrocellulose membranę.
 

Storage

Stable for up to 2 weeks at 25°C
Stable for up to 3 months at 4°C
For long term storage, store at -20°C
 

Guide for Molecular Weight Estimation (kDa)

Migration patterns of BlueSKY  Prestained Protein Ladder in different electrophoresis conditions are listed below: