Suited for fluorescence microscopy, flow cytometry and other fluorescence-based applications. The preservative-free formulation minimizes interference in sensitive assay conditions.
ATTO-labeled secondary antibodies combine high fluorescence intensity with strong photostability and reliable performance in fluorescence-based immunodetection. Donkey Anti-Goat IgG (H+L) ATTO647N specifically detects goat primary antibodies and is suitable for widefield, confocal and TIRF microscopy, flow cytometry, single-molecule detection and super-resolution imaging, including PALM, dSTORM and STED.
ATTO647N has an absorption maximum at 647 nm and a fluorescence maximum at 669 nm, producing far-red fluorescence. The conjugate is efficiently excited with 633 nm and 640 nm laser lines and is well suited to detection in the far-red spectral range. Its high fluorescence output and pronounced photostability support sensitive detection, repeated scanning, prolonged image acquisition and demanding single-molecule and super-resolution applications.
Donkey Anti-Goat IgG (H+L) ATTO647N is antigen-specific; affinity purification removes essentially all donkey serum proteins, including immunoglobulins not specifically binding to goat IgG. Following conjugation to ATTO647N, the antibody is further purified by gel filtration to remove unbound dye and support low-background, reproducible fluorescence staining. The product is supplied without preservatives.
Specification
Immunofluorescence: 1:500–1:1500, Degree of Labeling (DOL): 2–5, Unbound dye ≤5% of total fluorescence.
Optical properties
λabs: 647 nm, λfl: 669 nm
Properties
Form
Lyophilized
Nominal concentration
2 mg/ml (after reconstitution with buffer)
The antibody is supplied as 1.0 mg lyophilized powder and shipped at ambient temperature. A glycerol buffer is included for reconstitution to 2 mg/ml. After reconstitution, the glycerol stock may be stored at -20°C without freezing. Avoid repeated freeze/thaw cycles.
Content
1.0 mg Donkey Anti-Goat IgG (H+L) ATTO647N
1.0 ml Glycerol buffer (add 0.5 ml to reconstitute the lyophilized antibody)
Buffer: 50% glycerol, 0.01 M sodium phosphate, 0.1 M sodium chloride, pH 7.4
Clonality
Polyclonal
Isotype
IgG
Purification notes
Affinity purification removed donkey serum proteins and immunoglobulins not specifically binding to goat IgG. Following conjugation to ATTO647N, the antibody was further purified by gel filtration to remove unconjugated dye and low-molecular-weight reaction components.
Hypermol® secondary antibodies are highly specific and purified to remove unbound dye, minimizing background signal.
Storage instructions
Store as glycerol stock at -20°C. Avoid repeated freeze/thaw cycles.
Shipping conditions
Shipped at ambient temperature.
Remarks
For research use only. Not for diagnostic, therapeutic, clinical or in vivo use.
Buffers and antibodies from Hypermol® are made of the purest reagents in Milli-Q™ water, as described in our publications.