Glutathione S Transferase (GST) Fusion Based Assays for Studying Protein Protein Interactions Springer Nature Experiments An alternative easy method for antibody purification and analysis of protein protein interaction using GST fusion proteins immobilized onto glutathioneagarose Analytical and Bioanalytical Chemistry Springer Nature Link pET 49b(+) DNA Novagen Novagens pET 49b(+) vector is designed for cloning and high level expression of target proteins fused with the 220 aa schistosomal glutathione S transferase Tag protein. Sigma Aldrich Bifunctional transcription factor GhMYB4 orchestrates transition from elongation to secondary cell wall synthesis trade off in cotton fiber: Developmental Cell