Product Name: | Avidin (from egg white) |
Catalog Number: | M22515 |
CAS Number: | 1405-69-2 |
Storage: | -20°C |
QC Standard: | ≥98%, 10-15 units/mg protein (E1%/280) |
H-NMR: | Consistent with structure |
Description: | Avidin is homotetrameric protein (68kDa) that is obtained from egg whites. Avidin forms an extremely strong complex with d-biotin (Kd ~ 10-15). This activity has made both avidin and biotin extremely useful labels in immunochemical methods of detection and quantitation. |
Stability and Solubility Advice: | Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide. We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details. |