The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
>95% by SDS-PAGE .
SUMO3 modified with fluorescein via primary amine coupling resulting in modification of lysine residues as well as the N-terminus. Although having a fully functional C-terminus, lysine modification may limit the ability of this reagent to propagate poly-SUMO chains. ab189730 allows for direct detection spectophotometrically with higher efficiency and sensitivity than with antibodies.
Optimal fluorescence at pH 8.0
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Preparation and Storage
Stability and Storage
Shipped on Dry Ice. Store at -80°C. Avoid freeze / thaw cycle. Store In the Dark.
Ubiquitin-like protein which can be covalently attached to target lysines either as a monomer or as a lysine-linked polymer. Does not seem to be involved in protein degradation and may function as an antagonist of ubiquitin in the degradation process. Plays a role in a number of cellular processes such as nuclear transport, DNA replication and repair, mitosis and signal transduction. Covalent attachment to its substrates requires prior activation by the E1 complex SAE1-SAE2 and linkage to the E2 enzyme UBE2I, and can be promoted by an E3 ligase such as PIAS1-4, RANBP2 or CBX4.
Expressed predominantly in liver.
Belongs to the ubiquitin family. SUMO subfamily. Contains 1 ubiquitin-like domain.
Polymeric chains can be formed through Lys-11 cross-linking. Cleavage of precursor form by SENP1, SENP2 or SENP5 is necessary for function.