USP6 siRNA – Ubiquitin Carboxyl-Terminal Hydrolase 6 (Human)

USP6: Deubiquitinase with an ATP-independent isopeptidase activity, cleaving at the C-terminus of the ubiquitin moiety. Catalyzes its own deubiquitination. In vitro, isoform 2, but not isoform 3, shows deubiquitinating activity. Promotes plasma membrane localization of ARF6 and selectively regulates ARF6- dependent endocytic protein trafficking. Is able to initiate tumorigenesis by inducing the production of matrix metalloproteinases following NF-kappa-B activation. A chromosomal aberration involving USP6 is a common genetic feature of aneurysmal bone cyst, a benign osseous neoplasm. Translocation t(16;17)(q22;p13) with CDH11. The translocation generates a fusion gene in which the strong CDH11 promoter is fused to the entire USP6 coding sequence, resulting in USP6 transcriptional up-regulation. Belongs to the peptidase C19 family. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Oncoprotein; EC 3.4.19.12; Ubiquitin-specific protease; Protease

Chromosomal Location of Human Ortholog: 17p13

Cellular Component: recycling endosome; lysosome; cytoplasm; plasma membrane

Molecular Function: calmodulin binding; protein binding; nucleic acid binding; cysteine-type endopeptidase activity; ubiquitin-specific protease activity

Biological Process: proteasomal ubiquitin-dependent protein catabolic process; protein deubiquitination; protein modification process