Subunit structure: Interacts (via SNAG domain) with LIMD1 (via LIM domains), WTIP (via LIM domains) and AJUBA (via LIM domains) (By similarity). Interacts (via zinc fingers) with KPNA2, KPNB1, and TNPO1. May interact (via zinc fingers) with IPO7.
Domain: Repression activity depends on the C-terminal DNA-binding zinc fingers and on the N-terminal repression domain.
Subcellular location: Nucleus. Cytoplasm. Note=Observed in discrete foci in interphase nuclei. These nuclear foci do not overlap with the nucleoli, the SP100 and the HP1 heterochromatin or the coiled body, suggesting SNAI2 is associated with active transcription or active splicing regions.
Tissue specificity: Expressed in most adult human tissues, including spleen, thymus, prostate, testis, ovary, small intestine, colon, heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas. Not detected in peripheral blood leukocyte. Expressed in the dermis and in all layers of the epidermis, with high levels of expression in the basal layers (at protein level). Expressed in osteoblasts (at protein level). Expressed in mesenchymal stem cells (at protein level). Expressed in breast tumor cells (at protein level).
Post-translational: GSK3B-mediated phosphorylation results in cytoplasmic localization and degradation.
Involvement in disease: Waardenburg syndrome 2D (WS2D) [MIM:608890]: WS2 is a genetically heterogeneous, autosomal dominant disorder characterized by sensorineural deafness, pigmentary disturbances, and absence of dystopia canthorum. The frequency of deafness is higher in WS2 than in WS1. Note=The disease is caused by mutations affecting the gene represented in this entry. Piebald trait (PBT) [MIM:172800]: Autosomal dominant genetic developmental abnormality of pigmentation characterized by congenital patches of white skin and hair that lack melanocytes. Note=The disease is caused by mutations affecting the gene represented in this entry.
Sequence similarity: Belongs to the snail C2H2-type zinc-finger protein family. Contains 5 C2H2-type zinc fingers.