Product Name :
SUMO-1 (human) (CT) polyclonal antibody
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The small ubiquitin-related modifier SUMO-1 belongs to the growing family of ubiquitin-related proteins involved in post-translational protein modification. It is present in all eukaryotic kingdoms and is highly conserved from yeast to humans. Whereas invertebrates have only one SUMO gene, three members of the SUMO family have been described in vertebrates, SUMO-1 and the close homologues SUMO-2 and SUMO-3 with some 50% homology between SUMO-1 and SUMO-2/3. The SUMO family members have a short N-terminal extension that is absent in ubiquitin, and the function of which is unknown and the sequence of which varies between the three family members. Unlike ubiquitin, SUMO-1 does not appear to target proteins for degradation but seems to be involved in the modulation of protein-protein interactions. Although having only 18% amino acid sequence identity with ubiquitin, the overall structure closely resembles that of ubiquitin. Whereas the two C-terminal glycine residues required for isopeptide bond formation are conserved between the two molecules, Lys48 found in ubiquitin, and required to generate ubiquitin polymers, is substituted by Gln69in SUMO-1 thereby providing an explanation of why SUMO-1 has not been observed to form polymers.471905-41-6 Purity & Documentation An increasing number of SUMO-1 substrates are being described but three major substrates for SUMO-1 modification are RanGAP1, PML and IκBα proteins.1445700-01-5 Biological Activity Western blot analysis: SUMOylation assay utilising SUMO-1, SUMO E1 (BML-UW9330), SUMO E2 (BML-UW9320) and RANGAP1 as substrate in presence (lane 2) and absence (lane 1) of ATP after SDS-PAGE and blotting to PVDF with subsequent probing with BML-PW9460. Western blot analysis: SUMOylation assay utilising SUMO-1, SUMO E1 (BML-UW9330), SUMO E2 (BML-UW9320) and RANGAP1 as substrate in presence (lane 2) and absence (lane 1) of ATP after SDS-PAGE and blotting to PVDF with subsequent probing with BML-PW9460.
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| Alternative Name Sentrin-1, Small ubiquitin-related modifier 1 | Application WB | Formulation Liquid. In PBS containing 0.01% sodium azide. | Host Rabbit | Immunogen Synthetic peptide corresponding to aa 72-97 of human SUMO-1. | Recommendation Dilutions/Conditions Western Blot (1:1,000)Suggested dilutions/conditions may not be available for all applications.PMID:31082026 Optimal conditions must be determined individually for each application. | Source Purified from rabbit serum. | Species Reactivity Human | Technical Info / Product Notes The antiserum was raised in New Zealand White rabbits to a synthetic peptide corresponding to amino acid residues 72-97 of human SUMO-1. The antibody has been partially purified by salt precipitation and is suspended in PBS containing 0.01% sodium azide as a preservative. BML-PW9460 has been characterised for specificity against recombinant SUMO-1 and SUMO-1 conjugates by western blotting and shows similar affinity for both. The antibody shows no cross-reactivity with ubiquitin, multi-ubiquitin chains, SUMO2/3, ISG15, NEDD8, and FAT10. Reactivity of the antibody with both pro- and mature forms of SUMO-1 is completely abolished by preincubation of the antibody with its cognate peptide (product code BML-PP9475). | UniProt ID P63165 | Unit of Measure (UM) µl
