Summary

Name LAMP1
Full Name Lysosome-associated membrane glycoprotein 1
Synonyms LAMP-1, Lysosome-associated membrane protein 1, CD107 antigen-like family member A, CD antigen CD107a |
Primary ID P11279
Links - -
Type protein
Relations 4
Function Lysosomal membrane glycoprotein which plays an important role in lysosome biogenesis, lysosomal pH regulation, autophagy and cholesterol homeostasis (PubMed:37390818). Acts as an important regulator of lysosomal lumen pH regulation by acting as a direct inhibitor of the proton channel TMEM175, facilitating lysosomal acidification for optimal hydrolase activity (PubMed:37390818). Also plays an important role in NK-cells cytotoxicity (PubMed:2022921, PubMed:23632890). Mechanistically, participates in cytotoxic granule movement to the cell surface and perforin trafficking to the lytic granule (PubMed:23632890). In addition, protects NK-cells from degranulation-associated damage induced by their own cytotoxic granule content (PubMed:23847195). Presents carbohydrate ligands to selectins (PubMed:7685349). {ECO:0000269|PubMed:2022921, ECO:0000269|PubMed:23632890, ECO:0000269|PubMed:23847195, ECO:0000269|PubMed:37390818, ECO:0000269|PubMed:7685349}.; (Microbial infection) Acts as a receptor for Lassa virus glycoprotein (PubMed:24970085, PubMed:25972533, PubMed:27605678, PubMed:28448640). Promotes also fusion of the virus with host membrane in less acidic endosomes (PubMed:29295909). {ECO:0000269|PubMed:24970085, ECO:0000269|PubMed:25972533, ECO:0000269|PubMed:27605678, ECO:0000269|PubMed:28448640, ECO:0000269|PubMed:29295909}.; (Microbial infection) Supports the FURIN-mediated cleavage of mumps virus fusion protein F by interacting with both FURIN and the unprocessed form but not the processed form of the viral protein F. {ECO:0000269|PubMed:32295904}.

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Relations

Regulator Mechanism target score
+ up-regulates quantity by expression img/direct-activation.png transcriptional regulation LAMP1 0.454
Publications: 1
+ up-regulates quantity by expression img/indirect-activation.png transcriptional regulation LAMP1 0.454
Publications: 1
+ up-regulates quantity by expression img/indirect-activation.png transcriptional regulation LAMP1 0.365
Publications: 1
+ up-regulates quantity by expression img/direct-activation.png transcriptional regulation LAMP1 0.2
Publications: 1