streptavidin, Alexa Fluor® 555 conjugate, 1 mg
from
Molecular Probes (Invitrogen)
Description
Our streptavidin, Alexa Fluor 555 conjugate is a bright, orange-fluorescent probe that is spectrally identical to Cy3 dye. Streptavidin is a nonglycosylated biotin-binding protein that is isolated from bacteria and has a near-neutral isoelectric point. It is widely used to detect biotinylated probes because it reportedly exhibits less nonspecific binding than does the glycosylated, biotin-binding protein, avidin.