Jackson Immuno Research Inc.
specializing in secondary antibodies and conjugates

Fluorescein (FITC) AffiniPure™ F(ab')₂ Fragment Goat Anti-Human IgM, Fc fragment specific

(min X Bov Sr Prot)


Target: Human
Host: Goat
Antibody Format: F(ab')₂ Fragment
Specificity: IgM, Fc fragment specific
Minimal Cross Reactivity: Bovine Serum Proteins
Conjugate: Fluorescein (FITC)
Product Category: F(ab')₂ Fragment Affinity-Purified Antibodies
Clonality: Polyclonal
RRID: AB_2337670

Suitable for multiple labeling (see our Multiple Labeling guidance)

Code: 109-096-129

Unit:
1.0 mg
Price:
$200.00


Download GHS/SDS

Technical Info
Based on immunoelectrophoresis and/or ELISA, the antibody reacts with the Fc portion of the human IgM heavy chain but not with human IgG, IgA, or the light chains of human immunoglobulins. No antibody was detected against non-immunoglobulin serum proteins. The antibody has been tested by ELISA and/or solid-phase adsorbed to ensure minimal cross-reaction with bovine serum proteins, but it may cross-react with IgM from other species.

F(ab')2 fragment antibodies are generated by pepsin digestion of whole IgG antibodies to remove most of the Fc region while leaving some of the hinge region. F(ab')2 fragments have two antigen-binding Fab portions linked together by disulfide bonds and therefore they are divalent. The average molecular weight is about 110 kDa. They are used for specific applications, such as to avoid binding of secondary antibodies to live cells with Fc receptors or to Protein A or Protein G.

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 pepsin 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:

1:50 - 1:200 for most applications

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.

Fluorescein (FITC)

Amax: 492 Emax: 520nm

FITC (Fluorescein isothiocyanate) is the form of fluorescein used for conjugation to all of our antibodies and purified proteins, with the exception of streptavidin. Fluorescein conjugates absorb light maximally at 492 nm and fluoresce maximally at 520 nm. Although less bright than other green-fluorescing dyes, FITC is still a widely used fluorophore due to its long history. The major disadvantage of fluorescein is its rapid photobleaching (fading), which can be mitigated by the use of an anti-fading agent in the mounting medium. A better choice for many applications involving FITC is Alexa Fluor® 488 because it is brighter and more photostable.

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™.

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