Anti-Sumo 1/SUMO1 Antibody

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.

Polycystin-2; PC2; Autosomal dominant polycystic kidney disease type II protein; Polycystic kidney disease 2 protein; Polycystwin; R48321; Transient receptor potential cation channel subfamily P member 2; PKD2; TRPP2

Detected in fetal and adult kidney (PubMed:10770959) . Detected at the thick ascending limb of the loop of Henle, at distal tubules, including the distal convoluted tubule and cortical collecting tubules, with weak staining of the collecting duct (PubMed:10770959) . Detected on placenta syncytiotrophoblasts (at protein level) (PubMed:26269590) . Strongly expressed in ovary, fetal and adult kidney, testis, and small intestine. Not detected in peripheral leukocytes.

Component of a heteromeric calcium-permeable ion channel formed by PKD1 and PKD2 that is activated by interaction between PKD1 and a Wnt family member, such as WNT3A and WNT9B (PubMed:27214281) . Can also form a functional, homotetrameric ion channel (PubMed:29899465) . Functions as a cation channel involved in fluid-flow mechanosensation by the primary cilium in renal epithelium (PubMed:18695040) . Functions as outward-rectifying K+channel, but is also permeable to Ca2+, and to a much lesser degree also to Na+ (PubMed:11854751, PubMed:15692563, PubMed:27071085, PubMed:27991905) . May contribute to the release of Ca2+stores from the endoplasmic reticulum (PubMed:11854751, PubMed:20881056) . Together with TRPV4, forms mechano- and thermosensitive channels in cilium (PubMed:18695040) . PKD1 and PKD2 may function through a common signaling pathway that is necessary to maintain the normal, differentiated state of renal tubule cells. Acts as a regulator of cilium length, together with PKD1. The dynamic control of cilium length is essential in the regulation of mechanotransductive signaling. The cilium length response creates a negative feedback loop whereby fluid shear-mediated deflection of the primary cilium, which decreases intracellular cAMP, leads to cilium shortening and thus decreases flow-induced signaling. Also involved in left-right axis specification via its role in sensing nodal flow; forms a complex with PKD1L1 in cilia to facilitate flow detection in left-right patterning. Detection of asymmetric nodal flow gives rise to a Ca2+signal that is required for normal, asymmetric expression of genes involved in the specification of body left-right laterality (By similarity) .

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.