Small ubiquitin-like modifiers (SUMOs) are a family of small, related proteins (Sumo-1/2/3/4) that can be enzymatically attached to a target protein by a post-translational modification process termed sumoylation, which is a major regulator of protein function in cellular processes such as nuclear transport, transcriptional regulation, apoptosis and protein stability. All SUMO proteins localize to the nucleus and are covalently conjugated, affecting protein structure, function and interactions. SUMO2 and 3 are 96% identical and are more mobile within nucleus relative to SUMO1. Specific functional differences between SUMO1 and SUMO2 and 3 remain to be identified. Abbiotec提供了293个细胞的10,000多种裂解物，这些细胞被编码人类基因组25,000种蛋白质之一的质粒转染。裂解液是由用TrueORF基因携带的pCMV质粒（OriGene Technologies，Inc.）瞬时转染的HEK293T细胞制备的，然后在RIPA缓冲液中裂解。人全长蛋白带有C端Myc / DDK标签以进行检测。TACL™产品系列在Western印迹和免疫沉淀，ELISA标准品和反向蛋白质阵列中用作阳性对照。每种产品均包含纯载体转染裂解物作为阴性对照。