Purity: >95 % by SDS - PAGE Format: Liquid. In 20mM Tris-HCl buffer (pH 8.0) containing 0.2M NaCl, 40% glycerol, 2mM DTT . TCL1B belongs to the TCL1 family and is expressed in a variety of tissues including placenta and testis. This protein enhances the phosphorylation and activation of AKT1 and AKT2. Recombinant human TCL1B protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.