Suited for fluorescence microscopy and other sensitive fluorescence-based applications. The preservative-free formulation minimizes interference in demanding assay conditions.
Description
Product name
Donkey Anti-Goat IgG (H+L) ATTO390 | DXG ATTO390
Target species
Goat
Description
ATTO-labeled secondary antibodies combine high fluorescence intensity with excellent photostability for reliable fluorescence-based detection. Donkey Anti-Goat IgG (H+L) ATTO390 specifically detects goat primary antibodies and is suitable for widefield and confocal fluorescence microscopy as well as other fluorescence-based immunodetection applications.
ATTO390 has an absorption maximum at 390 nm and a fluorescence maximum at 476 nm. Its large Stokes shift of 86 nm provides clear spectral separation between excitation and emission and can support spectral discrimination in multicolor experiments when appropriate excitation sources and filter sets are used.
Donkey Anti-Goat IgG (H+L) ATTO390 is antigen-specific; affinity purification removes essentially all donkey serum proteins, including immunoglobulins not specifically binding to goat IgG. The antibody is conjugated to ATTO390 and further purified by gel filtration to remove unbound dye. It 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: 390 nm, λfl: 476 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) ATTO390
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 ATTO390, 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.