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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.
Cat. No. N0702-At488-S |
500 µl purified antibody, lyophilized from PBS, fluorescence-labeled with ATTO® 488.
For many of the fluorescence labeled antibodies conjugated to ATTO® dyes from ATTO®488, ATTO®565, 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. This product or portions thereof is manufactured under license from ATTO-TEC GmbH. 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 |
Immunohistochemistry (IHC) on 4% PFA perfusion fixed tissue with 24h PFA post fixation. Immunoreactivity is usually revealed by fluorescence or a chromogenic substrate. Some antibodies require special fixation methods or antigen retrieval steps. For details, please refer to the ”Remarks” section.', $event)" style="cursor: help;">IHC: 1 : 500 |
Label | ATTO 488, two fluorophores coupled to one FluoTag |
Clone | 4B1 |
Subtype | single domain |
Reactivity |
Reacts with: chicken. No signal: mouse, rabbit, Guinea pig, donkey, rat, goat, pig, horse, cow, human. Other species not tested yet. |
Specificity | Recognizes native chicken IgY. It does not cross-react to mouse, rabbit, Guinea pig, rat, donkey, goat, pig, horse, cow or human IgGs. |
Unlabeled variants and several modifications of sdAbs like biotin, fluorophore or DBCO conjugation are available.
IgY is the major immunoglobulin found in chicken eggs. FluoTag®-X2 anti-chicken is a species-specific FluoTag®-X2 directed against immunoglobulin IgY from chicken.
In FluoTag®-X2, two fluorophore molecules are coupled site-specifically to one individual FluoTag® molecule. Therefore, the reagent targets four fluorophores to your primary chicken antibody.
Due to the monovalent binding, there are no primary and secondary antibody clusters formed, leading to better epitope accessibility and a more precise localization.