Profile: ProteinOne offers purified, biologically active proteins to research labs, medical institutions and pharmaceutical companies. Our product line includes general transcription factors, transcriptional activators & coactivators, pre-mRNA processing factors, tumor suppressors and other cancer related proteins. We also offer transcription factors & kits, cancer proteins, cell extract proteins, splicing factor proteins, GST-tagged proteins, antibodies, and modified enzymes. Our custom protein purification process includes all aspects of protein expression, production, purification, and development, from gene to protein including cloning, subcloning, generation of bacmid DNA, multiprotein complex expressions, transfection, tittering & amplification of virus, optimization of the expression conditions, mini- or large-scale infection, conventional purification, affinity purification, dialysis in a proper buffer & measure of concentration, SDS-PAGE & western blot analysis, protocol optimization & custom protein array printing services.