Anti-Sumo 1/SUMO1 Antibody Picoband®

Small ubiquitin-related modifier 1 (SUMO1), also called SMT3C or PIC1 is a protein that in humans is encoded by the SUMO1 gene. This gene is mapped to 2q33.1. This gene encodes a protein that is a member of the SUMO (small ubiquitin-like modifier) protein family. It functions in a manner similar to ubiquitin in that it is bound to target proteins as part of a post-translational modification system. However, unlike ubiquitin which targets proteins for degradation, this protein is involved in a variety of cellular processes, such as nuclear transport, transcriptional regulation, apoptosis, and protein stability. It is not active until the last four amino acids of the carboxy-terminus have been cleaved off. Several pseudogenes have been reported for this gene.

Small ubiquitin-related modifier 1; SUMO-1; GAP-modifying protein 1; GMP1; SMT3 homolog 3; Sentrin; Ubiquitin-homology domain protein PIC1; Ubiquitin-like protein SMT3C; Smt3C; Ubiquitin-like protein UBL1; SUMO1; SMT3C, SMT3H3, UBL1; OK/SW-cl.43

Cancer, Cardiovascular, Cell Biology, Cell Death, Metabolism, Metabolism Processes, Pathways and Processes, Proteasome / Ubiquitin, Proteolysis/Ubiquitin

Ubiquitin-like protein that can be covalently attached to proteins as a monomer or a lysine-linked polymer. Covalent attachment via an isopeptide bond to its substrates requires prior activation by the E1 complex SAE1-SAE2 and linkage to the E2 enzyme UBE2I, and can be promoted by E3 ligases such as PIAS1-4, RANBP2 or CBX4. This post-translational modification on lysine residues of proteins plays a crucial role in a number of cellular processes such as nuclear transport, DNA replication and repair, mitosis and signal transduction. Involved for instance in targeting RANGAP1 to the nuclear pore complex protein RANBP2. Covalently attached to the voltage-gated potassium channel KCNB1; this modulates the gating characteristics of KCNB1 (PubMed:19223394) . Polymeric SUMO1 chains are also susceptible to polyubiquitination which functions as a signal for proteasomal degradation of modified proteins. May also regulate a network of genes involved in palate development. .

1. Alkuraya, F. S., Saadi, I., Lund, J. L., Turbe-Doan, A., Morton, C. C., Maas, R. L. SUMO1 haploinsufficiency leads to cleft lip and palate. Science 313: 1751 only, 2006. 2. Kho, C., Lee, A., Jeong, D., Oh, J. G., Chaanine, A. H., Kizana, E., Park, W. J., Hajjar, R. J. SUMO1-dependent modulation of SERCA2a in heart failure. Nature 477: 601-605, 2011. 3. Martin, S., Nishimune, A., Mellor, J. R., Henley, J. M. SUMOylation regulates kainate-receptor-mediated synaptic transmission. Nature 447: 321-325, 2007.

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.