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Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
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LAMP2A Antibody / Chaperone-Mediated Autophagy Receptor Antibody, clone DIE-12, recognizes LAMP2A, one of three major splice variants encoded by the LAMP2 gene. Unlike the LAMP2B and LAMP2C isoforms, LAMP2A contains a unique cytoplasmic tail that enables its specialized function as the lysosomal receptor for chaperone-mediated autophagy (CMA). This selective autophagy pathway transports soluble cytosolic proteins directly across the lysosomal membrane for degradation, allowing cells to maintain protein quality control without forming autophagosomes. Because LAMP2A serves as the rate-limiting receptor for CMA, its abundance and regulation directly influence cellular proteostasis, stress adaptation, and survival.
During chaperone-mediated autophagy, proteins containing a KFERQ-like targeting motif are recognized by heat shock cognate protein 70 and associated co-chaperones in the cytoplasm. These substrate proteins are delivered to the lysosomal membrane, where they bind LAMP2A. Following substrate recognition, LAMP2A molecules assemble into a multimeric translocation complex that enables unfolded proteins to cross the lysosomal membrane for degradation within the lysosomal lumen. This highly selective pathway differs from macroautophagy by targeting individual proteins rather than bulk cytoplasmic material. Consequently, LAMP2A has become a central research target in studies of protein turnover, lysosomal biology, oxidative stress responses, and cellular adaptation to nutrient deprivation.
LAMP2A has attracted considerable attention in aging and disease research because chaperone-mediated autophagy declines with age, contributing to the accumulation of damaged or misfolded proteins. Reduced LAMP2A activity has been implicated in neurodegenerative disorders including Parkinson disease, Alzheimer disease, and Huntington disease, while altered expression has also been associated with metabolic disorders, liver disease, and immune regulation. In cancer, the role of LAMP2A is complex and context dependent. Many tumors exhibit elevated chaperone-mediated autophagy, enabling malignant cells to survive metabolic stress, resist chemotherapy, and adapt to hostile microenvironments. As a result, modulation of LAMP2A activity is being investigated as a potential therapeutic strategy in oncology and other diseases involving dysregulated proteostasis.
Because LAMP2A is distinct from the LAMP2B and LAMP2C isoforms, isoform-specific reagents are particularly valuable for distinguishing chaperone-mediated autophagy from other lysosomal functions mediated by the LAMP2 family. Measurement of LAMP2A expression is frequently combined with analyses of lysosomal markers, autophagy regulators, heat shock proteins, and protein quality control pathways to better understand cellular responses to stress. A LAMP2A Antibody is a valuable research tool for investigating chaperone-mediated autophagy, lysosomal function, neurodegeneration, aging, cancer biology, and cellular protein homeostasis.
Explore additional research tools for lysosomal biology, chaperone-mediated autophagy, and selective protein degradation on our Autophagy Antibodies page.
Optimal dilution of the LAMP2A Antibody / Chaperone-Mediated Autophagy Receptor Antibody should be determined by the researcher.
A synthetic peptide specific to the LAMP-2A isoform of human LAMP2 was used as the immunogen for the LAMP2A antibody.
Store the LAMP2A antibody at -20oC.
LAMP2A antibody, Lysosome Associated Membrane Glycoprotein 2A antibody, Lysosome Associated Membrane Protein 2A antibody, Chaperone-Mediated Autophagy Receptor antibody, Lysosomal Associated Membrane Protein 2A antibody
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