KCTD10 is a TNF-alpha inducible protein that can interact with the small subunit of DNA polymerase a and PCNA. In order to study the function of KCTD10, we prepared the rabbit anti-mouse KCTD10 polyclonal antibody by using the His-tagged recombinant mouse KCTD10 protein to immune New Zealand white rabbit. Mouse KCTD10 shares significant similarity with PDIP1 (polymerase delta-interacting protein 1) and TNFAIP1 (tumor necrosis factor alpha-induced protein 1) protein,and then KCTD10 polyclonal antiserum possesses cross-reactivity with PDIP1 protein and TNFAIP1 protein. The partially digested fragments of homogeneous proteins PDIP1 and TNFAIP1 were mixed and incubated with anti-KCTD10 antiserum at 4 degrees C for 3 h to deplete unspecific antibodies. Through this method, we removed successfully the cross-reactivity of anti-KCTD10 antibody with PDIP1 and TNFAIP1 and obtained specific anti-KCTD10 antibody. Then, the anti-KCTD10 antibody was used in immunohistochemistry experiments of mouse. The results of immunohistochemistry on whole-mount embryo and paraffin section demonstrated that KCTD10 is highly expressed in neuroepithelium of neural tube and dorsal root ganglion of 12.5 d embryos. These results suggest that KCTD10 may play roles in the development of neuroepithelium of neural tube and dorsal root ganglion.
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