CTD small phosphatase-like protein 2 (CTDSPL2) is also named as HSPC058 and HSPC129, belongs to the CTDSPL2 family. It is a putative RNA-polymerase II carboxy-terminal domain (CTD) phosphatase, whose specific CTD phosphatase activity was verified in vitro, and may regulate the dynamic phosphorylation of RNAP II CTD.( PMID: 17487459) It can obviously improve the expression of ε- and γ-globin genes in K562 cells and CD34+ cells derived from UCB.( PMID: 20932329) This antibody is a rabbit polyclonal antibody raised against a region of human CTDSPL2.