Desthiobiotin-PEG4-Alkyne
An alkyne-activated desthiobiotin labelling reagent with a hydrophilic spacer arm.
| 10mg | £114.00 | |
| 25mg | £234.00 | |
| 100mg | £594.00 |
Desthiobiotin is a single-ring, sulphur-free analogue of biotin that binds to streptavidin with nearly equal specificity but less affinity than biotin (Kd = 1011 vs. 1015M, respectively). Consequently, desthiobiotinylated proteins can be eluted readily and specifically from streptavidin affinity resin using mild conditions based on competitive displacement with free biotin. For pull-down experiments with biological samples, this soft-release characteristic of desthiobiotin also helps to minimise co-purification of endogenous biotinylated molecules, which remain bound to streptavidin upon elution of the target protein complexes with free biotin.
427.32
C21H37N3O6
N/A
DMSO, DMF, DCM, THF, Chloroform
>90%
Colourless to slightly yellow oil
-20°C
Room Temperature
