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RFP sdAb - FluoTag-Q - N0401-AF568-L

A red fluorescent protein tag

 

This product was developed by   

NanoTag-Biotechnologies

Camelid single domain antibodies (sdAbs) consist only of one antigen binding site of an Alpaca heavy chain antibody. With only ~15 kDa, these Tags are about 10-times smaller than conventional IgG antibody molecules.

Camelid single domain antibody

Cat. No.: N0401-AF568-L
Amount: 200 µl
Price: $515.00
Cat. No. N0401-AF568-L 200 µl purified antibody, lyophilized from PBS, fluorescence-labeled with AZdye 568.

Fluorescence labeled antibodies conjugated to Alexa® dyes are well suited for standard epi-fluorescence setups and confocal microscopy.

AZdye® 568: λex 568 nm / λem 665 nm (identical to Alexa® 568)
Alexa® 647: λex 650 nm / λem 665 nm

This product or portions thereof is manufactured under license from Life Technologies Corporation. 
Alexa Fluor is a registered trademark of Life Technologies Corporation.
Purchase of reagents related to the Alexa Fluor technology from Synaptic Systems GmbH provides a license for non-profit and in-house research use only. Any application of above mentioned technology for commercial purpose requires a separate license from Life Technologies Corporation.

Albumin was added for stabilization. For reconstitution add 200 µl H2O. Either add 1:1 (v/v) glycerol, then aliquot and store at -20°C until use, or store aliquots at -80°C without additives.
Reconstitute immediately upon receipt! Avoid bright light when working with the antibody to minimize photo bleeching of the fluorescent dye.
Applications
 
ICC: yes
FACS: yes
Label AZdye 568, one fluorophore coupled to one FluoTag
Clone 2B12
Subtype single domain
Immunogen Recombinant protein corresponding to AA 1 to 225 from sea anemone RFP (UniProt Id: Q9U6Y8)
Specificity mRFP and derivatives like mCherry, mScarlet-i, tdTomato, dsRed, mOrange

Cat. No.: N0401-AF568-L
Amount: 200 µl
Price: $515.00
Background

Red fluorescent protein RFP is a common fusion protein used in cell biology to follow the localization and expression of proteins of interest. RFP is known for its rapid maturation and high resistance to photobleaching and therefore well suited for multi color imaging.

 

Unlabeled variants and several modifications of sdAbs like biotin, fluorophore or DBCO conjugation are available.

 

In FluoTag®-Q each fluorophore is coupled to exactly one FluoTag, which in turn binds to its target molecule in a monovalent fashion. The high binding affinity and a coupling efficiency of > 95% guarantees a highly linear relation between the number of target molecules and the intensity of fluorescence. This enables a direct count of the target molecule of interest. The fluorophore is located exceptionally close to the recognized epitope (< 1.5 nm), which is ideal for all microscopy techniques.

In FluoTag®-X two fluorophore molecules are site-specifically coupled to each FluoTag molecule. Therefore, the reagent simultaneously targets up to four fluorophores (in X4 variants) to the protein of interest, which ensures extra-bright signals. Owing to the small size of the FluoTags, the distance between the target epitope and each fluorophore is ~ 3 nm.
In comparison to detection systems using conventional antibodies, FluoTag-X can thus improve the localization accuracy by 10-15 nm. Both features - superior brightness and precise fluorophore placement - render the FluoTag-X products excellent tools for all microscopy techniques.