Ubiquitin Protein Ligase E3 Component N-Recognin 4 (UBR4) Antibody – Rabbit Polyclonal

The protein encoded by this gene is an E3 ubiquitin-protein ligase that interacts with the retinoblastoma-associated protein in the nucleus and with calcium-bound calmodulin in the cytoplasm. The encoded protein appears to be a cytoskeletal component in the cytoplasm and part of the chromatin scaffold in the nucleus. In addition, this protein is a target of the human papillomavirus type 16 E7 oncoprotein. [provided by RefSeq, Aug 2010]

UBR4: E3 ubiquitin-protein ligase which is a component of the N-end rule pathway. Recognizes and binds to proteins bearing specific N-terminal residues that are destabilizing according to the N-end rule, leading to their ubiquitination and subsequent degradation. Together with clathrin, forms meshwork structures involved in membrane morphogenesis and cytoskeletal organization. Regulates integrin-mediated signaling. May play a role in activation of FAK in response to cell-matrix interactions. Belongs to the UBR4 family. 6 isoforms of the human protein are produced by alternative splicing.

Protein type: EC 6.3.2.-; EC 6.3.2.19; Ligase; Membrane protein, integral; Membrane protein, multi-pass; Ubiquitin conjugating system; Ubiquitin ligase

Chromosomal Location of Human Ortholog: 1p36.13

Cellular Component: centrosome; cytosol; integral component of membrane; membrane; nucleoplasm; plasma membrane

Molecular Function: calmodulin binding; protein binding; ubiquitin-protein transferase activity; zinc ion binding

Biological Process: neutrophil degranulation; protein ubiquitination involved in ubiquitin-dependent protein catabolic process; viral process