Digoxigenin (DIG) is a steroid found exclusively in the flowers and leaves of the plants Digitalis purpurea, Digitalis orientalis and Digitalis lanata (foxgloves), where it is attached to sugars, to form the glycosides (e.g. digoxin, lanatoside C). Digoxigenin is a hapten, a small molecule with high antigenicity, that is used in many molecular biology applications similarly to other popular haptens such as 2,4-Dinitrophenol, biotin, and fluorescein. Typically, digoxigenin is introduced chemically (conjugation) into biomolecules (proteins, nucleic acids) to be detected in further assays. Kd of the digoxigenin-antibody interaction has been estimated at ~12 nM (compare to Kd~0.1pM for the biotin-streptavidin interaction).
Background References
1. Barratt KS et al. Production of Digoxigenin-Labeled Riboprobes for In Situ Hybridization Experiments. Curr Protoc Mouse Biol. 2020 Jun
2. Tanji M et al. Digoxigenin-labeled RNA probes for untranslated regions enable the isoform-specific gene expression analysis of myosin heavy chains in whole-mount in situ hybridization. Dev Growth Differ. 2023 Jan
Synonyms
1672-46-4 antibody
BRN 0096479 antibody
DIG antibody
EINECS 216-806-2 antibody
HSDB 7108 antibody
Lanadigenin antibody
Lanadigigenin antibody
ST056392 antibody
Digoxigenin
Images
☑ Relative expression (RE)
Western blot analysis of Digoxigenin on different lysates with Rabbit anti-Digoxigenin antibody (HA722122) at 1/2,000 dilution.
Lane 1: DIG-BSA (2 ng/Lane) Lane 2: BSA (negative) (2 ng/Lane) Lane 3: 293T cell lysate (negative) (20 µg/Lane)
Exposure time: 20 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA722122) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
☑ Relative expression (RE)
Immunohistochemical analysis of paraffin-embedded human tonsil tissue (negative) with Rabbit anti-Digoxigenin antibody (HA722122) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HA722122) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
☑ Relative expression (RE)
Immunohistochemical analysis of paraffin-embedded mouse spleen tissue (negative) with Rabbit anti-Digoxigenin antibody (HA722122) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HA722122) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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