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Please note: We are reviewing Western blot images included in the antibody testing data in our catalog, including those provided by third parties. Unless expressly labeled or annotated as “raw-unedited”, Western blot images included in the antibody testing data in our catalog may have been edited, optimized or otherwise adjusted for presentation.
Predicted to react with rat based on sequence homology.
Cholesterol transporter that mediates non-vesicular transport of cholesterol from the plasma membrane (PM) to the endoplasmic reticulum (ER). Contains unique domains for binding cholesterol and the PM, thereby serving as a molecular bridge for the transfer of cholesterol from the PM to the ER. Plays a crucial role in cholesterol homeostasis and has the unique ability to localize to the PM based on the level of membrane cholesterol. In lipid-poor conditions localizes to the ER membrane and in response to excess cholesterol in the PM is recruited to the endoplasmic reticulum-plasma membrane contact sites (EPCS) which is mediated by the GRAM domain. At the EPCS, the sterol-binding VASt/ASTER domain binds to the cholesterol in the PM and facilitates its transfer from the PM to ER. May play a role in tumor progression. Plays a role in autophagy regulation and is required for biogenesis of the autophagosome (PubMed:31222192). This function in autophagy requires its cholesterol-transfer activity (PubMed:31222192). [UniProt]
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Aster-A; GRAM domain-containing protein 1A; unnamed protein product
Gene Aliases: 1300003M23Rik; D7Bwg0611e; KIAA1533; LAMa
UniProt ID: (Human) Q96CP6, (Mouse) Q8VEF1
Entrez Gene ID: (Human) 57655, (Mouse) 52857
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