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GFP sdAb - FluoTag-Q - N0301-At488-L

GFP is a widely used green 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.: N0301-At488-L
Amount: 200 µl
Price: $485.00
Cat. No. N0301-At488-L 200 µl specific antibody, lyophilized. Affinity purified with the immunogen, fluorescence-labeled with ATTO® 488

For many of the fluorescence labeled antibodies conjugated to ATTO® dyes from ATTO-TEC the established CyDye fluorescence detection systems can be used.
ATTO® 550 has similar exitation and emission properties as Cy3, and ATTO® 647N as Cy5.
ATTO®647N and ATTO®594 dyes are suitable for Stimulated Emission Depletion (STED) microscopy which allows higher resolution imaging compared to confocal laser scanning microscopy.
ATTO®594 is also recommended for PALM and dSTORM high resolution microscopy.

ATTO is a trademarks of ATTO-TEC GmbH, Siegen/Germany.
CyDyes, Cy3, and Cy5 are trademarks of GE-Healthcare Ltd.

.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.
Storage Up to three months: -20°C
Up to 12 months: -80°C or below
Protect form light!
Applications
 
WB: not recommended
IP: N/A
ICC: 1 : 1000 gallery  
IHC: not tested yet
IHC-P: not tested yet
Label ATTO 488, one fluorophore coupled to one FluoTag
Clone 1H1
Subtype single domain
Immunogen Recombinant protein corresponding to AA 1 to 238 from jellyfish GFP (UniProt Id: P42212)
Specificity Recognizes GFP, mEGFP, superfolder GFP, most common CFP and YFP variants.
Does not cross-react with mCherry, mRFP, dsRed, mTagBFP or their most common derivatives.
Documents data sheet

Cat. No.: N0301-At488-L
Amount: 200 µl
Price: $485.00
Background

Green fluorescent protein GFP and its derivates have become very popular and universal tools in cell biology. It is a monomeric and fast maturating protein with high photostability. Due to its sensitivity to pH changes it can be used as a biological pH indicator.

 

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.

Protocols