Protein G [Gold]

Product Overview

Protein G was conjugated to a 40 nm colloidal gold particle at 20 micrograms per mL

Nature

Recombinant

Tag/Conjugate

Gold

Buffer

Bovine Serum Albumin/Phosphate pH 7.4

Preservative

0.1% Sodium Azide

Storage

4°C

Introduction

Protein G is an immunoglobulin-binding protein expressed in group C and G Streptococcal bacteria much like Protein A but with differing specificities. It is a 65-kDa (G148 protein G) and a 58 kDa (C40 protein G) cell surface protein that has found application in purifying antibodies through its binding to the Fab and Fc region. The native molecule also binds albumin, however, because serum albumin is a major contaminant of antibody sources, the albumin binding site has been removed from recombinant forms of Protein G.

Keywords

Protein G