This Human E3 ubiquitin-protein ligase UBR1 (UBR1) ELISA Kit employs a two-site sandwich ELISA to quantitate UBR1.

• Additional information:The mouse Ubr1 protein is a 1,757-residue, 200-kD protein that contains regions with sequence similarity to the 225-kD UBR1 protein of S. cerevisiae. There are apparent UBR1 homologs in other eukaryotes, thus defining a distinct family of proteins, the UBR family. The residues essential for substrate recognition by the yeast UBR1 protein are conserved in the mouse Ubr1 protein. Regions of similarity among the UBR family members include a putative zinc finger and RING-H2 finger, another zinc-binding domain. Northern blot analysis detected ubiquitous expression in human and adult mouse tissues, with highest levels in skeletal muscle and heart. In mouse embryos, in situ hybridization showed that Ubr1 expression is highest in the branchial arches and in the tail and limb buds.
• Storage and shipping:Storage: The unopened kit should be stored at 2 - 8°C. After opening, please store refer to protocols.Shipping:Gel pack with blue ice.
• Notes:This kit is intended for research use only. It should not be used for human or animal clinical diagnostics or treatment.