streptavidin, Alexa Fluor® 546 conjugate
from
Molecular Probes (Invitrogen)
Description
Our streptavidin, Alexa Fluor 546 conjugate is a bright, orange-fluorescent probe with excitation and emission characteristics similar to Cy3 dye and tetramethylrhodamine. 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.