Boster Bio Life Science Blog

Factors to Consider When Choosing the Right Blocking Agent for Western Blot

Following protein transfer, it is important to block the unreacted sites on the membrane using inert proteins and/or nonionic detergent to reduce levels of nonspecific protein binding during the assay. Including well-prepared blocking buffers can greatly improve the signal-to-noise...

What Is A Nitrocellulose Membrane in Western Blotting

Nitrocellulose membranes are one of the top matrices used in protein blotting in Western Blotting, offering significant advantages over simple filter paper in terms of protein retention and signal clarity. These membrane filters used as a Western blotting membrane have high protein-binding capacity, strong affinity for proteins of varying protein size, compatibility with a variety of protein detection methods, and the ability to immobilize proteins, glycoproteins, or nucleic acids. This variety of detection methods include chemiluminescent detection, fluorescence detection, and chromogenic detection systems commonly used in Western blot analysis. It is proven to produce excellent signal-to-noise results when used for amino acid analysis, protein sequencing and western, northern, and Southern blotting.

What Is Western Blotting and How Membranes Are Used?

Western blotting (also called Protein Immunoblotting) is an analytical technique used to detect specific proteins in the given sample. A thorough understanding of the western blot principle, including protein separation by SDS-PAGE gel electrophoresis and subsequent protein transfer efficiency, is crucial to successfully applying this method and...

Accurate protein band size prediction starts with the primary sequence, but real gels reflect biology. PTMs, processing, isoforms, and experimental conditions shift apparent molecular weight. Use the estimate, then verify with the diagnostic steps below.

Introduction

Western blotting separates proteins by size via gel electrophoresis (SDS-PAGE...