Jackson Immuno Research Inc.
specializing in secondary antibodies and conjugates

Alexa Fluor® 488 AffiniPure™ Fab Fragment Goat Anti-Human IgG, Fcγ fragment specific


Target: Human
Host: Goat
Antibody Format: Fab Fragment
Specificity: IgG, Fcγ fragment specific
Conjugate: Alexa Fluor® 488
Product Category: FabuLight™ - Affinity-Purified Fc Specific Fab Fragments
Clonality: Polyclonal
RRID: AB_2632452

FabuLights are suggested for labeling primary antibodies to be used in immunofluorescence or histochemical experiments. They are not recommended as a general blocking agent unless the γ or µ Fc region is to be targeted alone.

Code: 109-547-008

Unit:
0.5 mg
Price:
$218.00


Download GHS/SDS

Technical Info
Based on immunoelectrophoresis and/or ELISA, the antibody reacts with the Fc portion of human IgG heavy chain but not with the Fab portion of human IgG. No antibody was detected against human IgM or IgA, or against non-immunoglobulin serum proteins. The antibody may cross-react with immunoglobulins from other species.

Fab fragment antibodies are generated by papain digestion of whole IgG antibodies to remove the entire Fc portion, including the hinge region. These antibodies are monovalent, containing only a single antigen binding site. The molecular weight of Fab fragments is about 50 kDa.

Physical State: Freeze-dried solid

Storage and Rehydration: Store freeze-dried solid at 2-8°C. Rehydrate with the indicated volume of dH2O (see product specification sheet) and centrifuge if not clear. Prepare working dilution on day of use. Product is stable for about 6 weeks at 2-8°C as an undiluted liquid.
Extended Storage after Rehydration: Aliquot and freeze at -70°C or below. Avoid repeated freezing and thawing. Alternatively, add an equal volume of glycerol (ACS grade or better) for a final concentration of 50%, and store at -20°C as a liquid.
Expiration date: one year from date of rehydration. The expiration date may be extended if test results are acceptable for the intended use.


Purity: The antibody was purified from antisera by a combination of papain digestion and immunoaffinity chromatography using antigens coupled to agarose beads. Fc fragments and whole IgG molecules have been removed.
Buffer: 0.01M Sodium Phosphate, 0.25M NaCl, pH 7.6
Stabilizer: 15 mg/ml Bovine Serum Albumin (IgG-Free, Protease-Free)
Preservative: 0.05% Sodium Azide

Suggested Working Concentration or Dilution Range:

1:100 - 1:800 for sequential labeling applications.

To complex with primary antibody in solution, use 1:1 weight ratio of Fab:primary antibody (3:1 molar ratio). Vortex and incubate for 30 minutes at room temperature prior to use. Titrate complex to optimal dilution for assay.

Dilution factors are presented in the form of a range because the optimal dilution is a function of many factors, such as antigen density, permeability, etc. The actual dilution used must be determined empirically.

Alexa Fluor® 488

Amax: 493 Emax: 519nm

Alexa Fluor® 488-conjugated antibodies absorb light maximally at 493 nm and fluoresce with a peak around 519 nm. In aqueous mounting media they are brighter than FITC, Cy2, and DyLight 488. Alexa Fluor® 488 conjugates are recommended for maximum sensitivity for all immunofluorescence procedures requiring a green-fluorescing dye, except for protocols that include mounting in plastic mounting media.

This product is for in vitro research use only. It is not a medical device and it is not intended for diagnostic or therapeutic purposes.
Jackson ImmunoResearch Laboratories, Inc. has trademark rights to AffiniPure™.

This product is provided under an agreement between Life Technologies Corporation and Jackson ImmunoResearch Laboratories, Inc, and the manufacture, use, sale or import of this product is sold pursuant to a license from Life Technologies Corporation for use of its fluorescent dye technology. The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell or otherwise transfer this product or its components to any third party, or for any other commercial purposes. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 or outlicensing@lifetech.com.

go