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The fungal protein ERG2, a C-8 sterol isomerase, falls into the same protein family as sigma-1. Both localize to the ER membrane, although sigma-1 is also reported to be a cell surface receptor. Sigma-2 is an EXPERA domain protein [4] with a mostly intracellular (ER membrane) localization. [5]
The sigma-1 receptor (σ 1 R), one of two sigma receptor subtypes, is a chaperone protein at the endoplasmic reticulum (ER) that modulates calcium signaling through the IP3 receptor. [5] In humans, the σ 1 receptor is encoded by the SIGMAR1 gene. [6] [7] The σ 1 receptor is a transmembrane protein expressed in many
27346 69071 Ensembl ENSG00000109084 ENSMUSG00000037278 UniProt Q5BJF2 Q8VD00 RefSeq (mRNA) NM_014573 NM_133706 RefSeq (protein) NP_055388 NP_598467 Location (UCSC) Chr 17: 28.32 – 28.33 Mb Chr 11: 78.43 – 78.44 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse The sigma-2 receptor (σ 2 R) is a sigma receptor subtype that has attracted attention due to its involvement in diseases ...
Pages in category "Receptors" The following 75 pages are in this category, out of 75 total. ... Scavenger receptor (immunology) Sergey Piletsky; Sigma receptor;
This receptor is known as the nociceptin receptor or ORL1 (opiate receptor-like 1). The opioid receptor types are nearly 70% identical, with the differences located at the N and C termini. The μ receptor is perhaps the most important. It is thought that the G protein binds to the third intracellular loop of all opioid receptors.
Methylphenylpiracetam, a derivative of phenylpiracetam, is a positive allosteric modulator of the sigma σ 1 receptor. [10] [13] [14] [15] It is currently the only racetam known to possess this action. [10]
Agonists of the sigma receptors. Pages in category "Sigma agonists" The following 59 pages are in this category, out of 59 total.
Methylphenylpiracetam is a derivative of piracetam and a positive allosteric modulator of the sigma-1 receptor. [1] [2] [3] It differs from phenylpiracetam by having a methyl group. [2] E1R is the (4R,5S) stereoisomer of methylphenylpiracetam that has been shown to have the greatest effect on the modulation of the sigma-1 receptor. [2]