Anti-USP25 Antibody Picoband®

Ubiquitin specific peptidase 25 is a protein that in humans is encoded by the USP25 gene. It is mapped to 21q21.1. Ubiquitin is a highly conserved 76-amino acid protein involved in regulation of intracellular protein breakdown, cell cycle regulation, and stress response. Ubiquitin is released from degraded proteins by disassembly of the polyubiquitin chains, which is mediated by ubiquitin-specific proteases (USPs), such as USP25.

Ubiquitin carboxyl-terminal hydrolase 25; Deubiquitinating enzyme 25; USP on chromosome 21; Ubiquitin thioesterase 25; Ubiquitin-specific-processing protease 25; USP25; USP21

Isoform USP25a is found in most adult and fetal tissues; expression is moderately high in testis, pancreas, kidney, skeletal muscle, liver, lung, placenta, brain, heart, but very low in peripheral blood, colon, small intestine, ovary, prostate, thymus and spleen. Isoform USP25b is found in all tissues except heart and skeletal muscle. Isoform USP25m is heart and skeletal muscle specific.

Deubiquitinating enzyme that hydrolyzes ubiquitin moieties conjugated to substrates and thus, functions to process newly synthesized Ubiquitin, to recycle ubiquitin molecules or to edit polyubiquitin chains and prevents proteasomal degradation of substrates. Hydrolyzes both 'Lys-48'- and 'Lys-63'-linked tetraubiquitin chains. The muscle-specific isoform (USP25m) may have a role in the regulation of muscular differentiation and function.

1. Meulmeester, E., Kunze, M., Hsaio, H. H., Urlaub, H., Melchior, F. Mechanism and consequences for paralog-specific sumoylation of ubiquitin-specific protease 25. Molec. Cell 30: 610-619, 2008. 2. Valero, R., Bayes, M., Sanchez-Font, M. F., Gonzalez-Angulo, O., Gonzalez-Duarte, R., Marfany, G. Characterization of alternatively spliced products and tissue-specific isoforms of USP28 and USP25. Genome Biol. 2: research0043, 2001. Note: Electronic Article. 3. Valero, R., Marfany, G., Gonzalez-Angulo, O., Gonzalez-Gonzalez, G., Puelles, L., Gonzales-Duarte, R. USP25, a novel gene encoding a deubiquitinating enzyme, is located in the gene-poor region 21q11.2. Genomics 62: 395-405, 1999.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.