Jackson Immuno Research Inc.
specializing in secondary antibodies and conjugates

Rhodamine Red™-X (RRX) VHH Fragment Alpaca Anti-Human IgG (H+L)

(min X Bov, Ms, Rb Sr Prot)


Target: Human
Host: Alpaca
Antibody Format: VHH Fragment
Specificity: IgG (H+L)
Minimal Cross Reactivity: Bovine, Mouse, Rabbit Serum Proteins
Conjugate: Rhodamine Red™-X (RRX)
Product Category: Nano Secondary Antibodies

Code: 609-294-213

Unit:
0.1 mg
Price:
$240.00


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Technical Info
Based on immunoelectrophoresis and/or ELISA, the antibody reacts with whole molecule human IgG. It also reacts with the light chains of other human immunoglobulins. The antibody has been tested by ELISA and/or solid-phase adsorbed to ensure minimal cross-reaction with bovine, mouse and rabbit serum proteins, but it may cross-react with immunoglobulins from other species.

Nano Secondaries are polyclonal VHH Fragment antibodies (Nanobodies) produced in alpacas. 10x smaller than conventional whole IgG antibodies, the <15KDa VHH Fragment antibodies are perfect for imaging experiments where good penetration is necessary. Nano Secondary antibodies are cross-adsorbed for exquisite specificity against target species with minimal cross‑reactivity to other stated species, making them suitable for application in multiple labeling experiments.
Physical State: Freeze-dried solid

Storage and Rehydration: Store freeze-dried solid at 2-8°C. Rehydrate with the indicated volume of dH2O 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 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 - 1:400 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.

Rhodamine Red™-X (RRX)

Amax: 570 Emax: 590nm

RRX (Rhodamine Red-X) conjugates have a peak of excitation at 570 nm and a peak of emission at 590 nm. Although TRITC has been used traditionally with FITC for double labeling, better color separation is achieved by using RRX or Alexa Fluor® 594. Rhodamine Red-X is particularly useful for 3- and 4-color labeling with DyLight 405, Alexa Fluor® 488, and Alexa Fluor® 647 by using a confocal microscope equipped with a 405 nm laser and a krypton/argon laser. Fluorescence from RRX lies about midway between that of Alexa Fluor® 488 and Alexa Fluor® 647, and it shows little overlap with either dye. The krypton-argon laser emits lines at 488 nm, 568 nm, and 647 nm, which are optimal for exciting Alexa Fluor® 488, RRX, and Alexa Fluor® 647, respectively. By adding a 405 nm laser and a 420 nm emission filter, 4-color labeling is possible using DyLight 405-conjugated secondary antibodies from JIR (Figure 5). The separation between all four dyes is perfect for 4-color labeling, and all four dyes are very bright.

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. Product cannot be resold in any format without expressed authorization from Jackson ImmunoResearch Laboratories, Inc.

Rhodamine Red-X is a trademark of Molecular Probes, Inc. Jackson ImmunoResearch is licensed by Molecular Probes, Inc. to manufacture and sell conjugates of Rhodamine Red-X reactive dye.

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