Invitrogen™ Donkey anti-Goat IgG (H+L) Highly Cross-Adsorbed Secondary Antibody, Alexa Fluor™ Plus 488

Donkey Polyclonal Secondary Antibody

Product Code	Brand	Quantity
15930877	Invitrogen™ A32814	1 mg
17121141	Invitrogen™ A32814TR	100 μg

Description

To minimize cross-reactivity, the donkey anti-goat IgG whole antibodies have been cross-adsorbed against IgG from human, mouse, rabbit, and rat, as well as non-immunoglobulin goat serum. Cross-adsorption or pre-adsorption is a purification step to increase specificity of the antibody resulting in less background staining and cross-reactivity. The secondary antibody solution is passed through a column matrix containing immobilized serum proteins from potentially cross-reactive species. Only the nonspecific-binding secondary antibodies are captured in the column, and the highly specific secondaries flow through. Further passages through additional columns result in highly cross-adsorbed preparations of secondary antibody. The benefits of these extra steps are apparent in multiplexing/multicolor-staining experiments where there is potential cross-reactivity with other primary antibodies or in tissue/cell fluorescent staining experiments where there may be the presence of endogenous immunoglobulins. Using conjugate solutions: Centrifuge the protein conjugate solution briefly in a microcentrifuge before use; add only the supernatant to the experiment. This step will help eliminate any protein aggregates that may have formed during storage, thereby reducing nonspecific background staining. Because staining protocols vary with application, the appropriate dilution of antibody should be determined empirically. Specificity: This antibody binds to heavy chains on goat IgG and light...

Anti-Goat secondary antibodies are affinity-purified antibodies with well-characterized specificity for goat immunoglobulins and are useful in the detection, sorting or purification of its specified target. Secondary antibodies offer increased versatility enabling users to use many detection systems (e.g. HRP, AP, fluorescence). They can also provide greater sensitivity through signal amplification as multiple secondary antibodies can bind to a single primary antibody. Most commonly, secondary antibodies are generated by immunizing the host animal with a pooled population of immunoglobulins from the target species and can be further purified and modified (i.e. immunoaffinity chromatography, antibody fragmentation, label conjugation, etc.) to generate highly specific reagents.

Specifications

• Antigen: Goat IgG (H+L) Highly Cross-Adsorbed
• Content And Storage: 4°C, store in dark
• Classification: Polyclonal
• Form: Liquid
• Isotype: IgG
• Target Species: Goat
• Immunogen: Gamma Immunoglobins Heavy and Light chains.
• Product Type: Secondary Antibody

• Concentration: 2 mg/mL
• Applications: Western Blot, Immunocytochemistry
• Conjugate: Alexa Fluor Plus 488
• Host Species: Donkey
• Regulatory Status: RUO
• Formulation: Proprietary buffer with 0.016% Bromonitrodioxane, 0.016% Methylisothiazolone; pH 6.5
• Primary or Secondary: Secondary
• Purification Method: Affinity chromatography