LifeSensors Scientists Apurva Chaturvedi, Peter Foote, Li Liang, Dominic Vasturia, and Rajesh Singh recently presented research at FASEB in SnowMass, Colorado. A downloadable PDF of this poster can be found here. ABSTRACT The work presented here focuses on developing easy-to-use tools to distinguish between specific ubiquitin chain linkages, which are involved in a multitude […]
UCHL1 The protein encoded by UCHL1 (Ubiquitin C-Terminal Hydrolase L1) is a thiol protease belonging to the C12 family of peptidases that hydrolyze peptide bonds at the C-terminal glycine of ubiquitin. So far UCHL1 has been shown to be specifically expressed in neuronal and neuroendocrine tissues within humans. Mutations to this gene are associated with […]
USP14 USP14 is a ubiquitin specific protease that associates with the proteasome. This association with the proteasome has been shown to enhance the enzymatic activity of the proteasome. Recent studies have demonstrated that USP14 expression in certain cancers correlates with metastasis. Using a chemical probe researchers have shown that USP14 can interact with ISG15, a […]
USP8 USP8 is associated with endosomal trafficking, it is not clear that this isopeptidase is involved in the commitment to lysosomal sorting. Additional research has shown that USP8 plays a critical role in the stability of receptor tyrosine kinases. USP8 has been demonstrated to regulate the stability of Nrdp1, a E3 ubiquitin ligase. Among USP8’s […]
E6-AP E6-AP (E6-associated protein) is an E3 (ubiquitin protein ligase) that is involved in the conjugation of ubiquitin to target substrates along with E1 and E2 enzymes. It is a HECT domain E3 containing an active site cysteine which accepts a charged ubiquitin from the ubiquitin-E2 thiolester complex. E6-AP has been linked to a neurodevelopmental […]
ITCH ITCH is a HECT E3, which influences immunity, the skin, and plays a role in cancer by targeting various transcription factors and growth factors. Additionally, ITCH functions by ubiquitinylating target substrates for lysosomal degradation, and is associated with K29, K48, and K63 liked ubiquitin. Due to ITCH’s regulator effects on specific transcription and growth […]
NEDD4 Nedd4 is an inner membrane bound HECT E3 that promotes endocytosis of sodium channels marked for degradation at FGFR1 receptors, with K63 linked ubiquitin selectivity. Nedd4 has also been shown to regulate dendritic proliferation and branching during neuronal development. It has also been experimentally demonstrated that Nedd4 is phosphorylated for activation by SRC (Parkin-like). […]
CHIP CHIP is an E3 that coordinates with Ataxin3 to mark misfolded chaperone proteins for UPS degradation. Deficiencies within this pathway are associated with rare disease, such as Spinocerebellar Ataxia, Autosomal Recessive 16 and Gordon Holmes Syndrome.
