LAMP2 est un gène codé par le symbole LAMP2. Communément appelé aussi: Lysosome-associated membrane glycoprotein 2; LAMP-2; CD107 antigen-like family member B; LGP-96. LAMP2 a une masse de 44.96kDa, une longueur d'acide aminé de 410, et est impliqué dans Danon disease.
Nous proposons 26 des anticorps contre LAMP2, élevé dans Lapin, Souris et Rat, qui sont appropriés pour le WB, IHC, ELISA, ICC/IF, Cytométrie en Flux, IP et Dot avec des échantillons dérivés de Humain, Souris, Rat, Lapin et Canin.
Informations sur les Gènes et les Protéines
Résumé UniProt
Plays an important role in chaperone-mediated autophagy, a process that mediates lysosomal degradation of proteins in response to various stresses and as part of the normal turnover of proteins with a long biological half-live (PubMed:8662539, PubMed:11082038, PubMed:18644871, PubMed:24880125, PubMed:27628032). Functions by binding target proteins, such as GAPDH and MLLT11, and targeting them for lysosomal degradation (PubMed:8662539, PubMed:11082038, PubMed:18644871, PubMed:24880125). Plays a role in lysosomal protein degradation in response to starvation (By similarity). Required for the fusion of autophagosomes with lysosomes during autophagy (PubMed:27628032). Cells that lack LAMP2 express normal levels of VAMP8, but fail to accumulate STX17 on autophagosomes, which is the most likely explanation for the lack of fusion between autophagosomes and lysosomes (PubMed:27628032). Required for normal degradation of the contents of autophagosomes (PubMed:27628032). Required for efficient MHCII-mediated presentation of exogenous antigens via its function in lysosomal protein degradation; antigenic peptides generated by proteases in the endosomal/lysosomal compartment are captured by nascent MHCII subunits (PubMed:20518820). Is not required for efficient MHCII-mediated presentation of endogenous antigens (PubMed:20518820).
Résumé Entrez
The protein encoded by this gene is a member of a family of membrane glycoproteins. This glycoprotein provides selectins with carbohydrate ligands. It may play a role in tumor cell metastasis. It may also function in the protection, maintenance, and adhesion of the lysosome. Alternative splicing of this gene results in multiple transcript variants encoding distinct proteins.
Spécificité tissulaire
Isoform LAMP-2A is highly expressed in placenta, lung and liver, less in kidney and pancreas, low in brain and skeletal muscle (PubMed:7488019, PubMed:26856698). Isoform LAMP-2B is detected in spleen, thymus, prostate, testis, small intestine, colon, skeletal muscle, brain, placenta, lung, kidney, ovary and pancreas and liver (PubMed:7488019, PubMed:26856698). Isoform LAMP-2C is detected in small intestine, colon, heart, brain, skeletal muscle, and at lower levels in kidney and placenta (PubMed:26856698).
Implication dans la maladie
Danon disease: DAND is a lysosomal glycogen storage disease characterized by the clinical triad of cardiomyopathy, vacuolar myopathy and mental retardation. It is often associated with an accumulation of glycogen in muscle and lysosomes.
Similitudes de séquence
Belongs to the LAMP family.
Modification post-traductionnelle
O- and N-glycosylated; some of the 16 N-linked glycans are polylactosaminoglycans.
Localisation cellulaire
Cell membrane. Endosome membrane. Lysosome membrane. Cytoplasmic vesicle > Autophagosome membrane.
This protein shuttles between lysosomes, endosomes, and the plasma membrane.
