A GBA antibody conjugated to biotin is a recombinant or polyclonal/monoclonal antibody chemically linked to biotin, a small molecule with high affinity for streptavidin or avidin. This conjugation enables detection in assays such as Western blotting (WB), immunohistochemistry (IHC), and enzyme-linked immunosorbent assays (ELISA). GBA (glucosidase, beta, acid) is a lysosomal enzyme that hydrolyzes glucosylceramide, and its deficiency is linked to Gaucher disease and Parkinson’s disease (PD) .
Biotin-conjugated GBA antibodies enhance sensitivity by leveraging the biotin-streptavidin interaction, which amplifies signals in immunodetection systems. For example, in indirect detection assays, primary antibodies bind antigens, and biotinylated secondary antibodies bind to streptavidin-HRP or fluorescent probes for visualization .
Biotin-conjugated GBA antibodies are utilized across multiple experimental platforms:
Recent studies highlight the importance of antibody specificity in GBA research:
hGCase-1/17 and hGCase-1/23 (mouse monoclonal): Excellent for immunofluorescence and immunoprecipitation in GBA1 knockout models but limited utility in Western blotting for endogenous GBA detection .
EPR5143(3) (rabbit monoclonal, Abcam): Reliable for detecting endogenous GBA in Western blot and immunoprecipitation .
2E2 (mouse monoclonal, Abcam): Recognizes overexpressed GBA but struggles with endogenous levels in traditional Western blotting .
GBA deficiency exacerbates α-synuclein aggregation in Parkinson’s disease. Biotin-conjugated antibodies are critical for studying:
Western Blot Challenges:
Epitope Dependency:
Cross-Reactivity: