Note: The biotin tag does not interfere with ULK1 binding, preserving antibody specificity .
Autophagy Studies: ULK1 antibodies (e.g., Thermo Fisher’s biotin-conjugated variant) enable tracking of ULK1 activation during nutrient deprivation, where phosphorylation of Beclin-1 is critical for autophagosome formation .
Cancer Research: Elevated ULK1 expression correlates with poor prognosis in epithelial ovarian cancer (EOC). Biotin-conjugated antibodies aid in detecting ULK1 in tumor samples and studying its role in mitophagy .
Palmitoylation Analysis: While not explicitly tested with biotin-conjugated antibodies, ULK1’s palmitoylation by ZDHHC13 enhances membrane localization. Biotinylated antibodies could theoretically detect palmitoylated ULK1 in lipid-enriched fractions .
Specificity: Ensure cross-reactivity with target species (e.g., human vs. mouse ULK1) matches experimental needs .
Optimal Conditions:
Limitations: Biotin conjugation may reduce antibody stability in prolonged storage; follow supplier guidelines .
Autophagy Regulation: Biotin-conjugated ULK1 antibodies enable high-throughput screening of autophagy inhibitors or activators .
Cancer Therapeutics: Targeting ULK1 with biotinylated probes could facilitate drug development for cancers with dysregulated autophagy .
Mechanistic Studies: Combined with lipidomics, these antibodies may elucidate ULK1’s membrane localization dynamics .