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ERLIN1

From Wikipedia, the free encyclopedia
ERLIN1
Identifiers
AliasesERLIN1, C10orf69, Erlin-1, KE04, KEO4, SPFH1, SPG62, ER lipid raft associated 1
External IDsOMIM: 611604; MGI: 2387613; HomoloGene: 4716; GeneCards: ERLIN1; OMA:ERLIN1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001164359
NM_001164360
NM_145502

RefSeq (protein)

NP_001157831
NP_001157832
NP_663477

Location (UCSC)Chr 10: 100.15 – 100.19 MbChr 19: 44.02 – 44.06 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Erlin-1 (Endoplasmic Reticulum lipid raft-associated 1) is a protein encoded by the ERLIN1 gene in humans.[5][6][7] ERLIN1 and its homolog ERLIN2 are ER-localized members of the stomatin/prohibition/flotillin/HflKC (SPFH) family of proteins. They form a complex that functions to scaffold lipids and proteins.[8] ERLIN1 and ERLIN2 are predicted to assemble in a large ring-shaped hetero-oligomeric complex, likely formed by 24 subunits, similar to other members of the SPFH family.[9][10]

Function

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ERLIN1/2 are associated with cholesterol homeostasis. They interact with the SCAPSREBP2INSIG complex tightly under cholesterol repletion conditions, thus keeping this complex in the ER, where it is inactive. Silencing of ERLINs releases SREBP2 from the ER and allows it to travel to the Golgi, where it is processed and drives transcription of cholesterol synthesis genes. Activation of the SREBP2 pathway is as potent under ERLINs silencing as it is under cholesterol depletion conditions.[11]

References

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  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000107566Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000025198Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Li N, Huang X, Zhao Z, Chen G, Zhang W, Cao X (Feb 2001). "Identification and characterization of a novel gene KE04 differentially expressed by activated human dendritic cells". Biochem Biophys Res Commun. 279 (2): 487–93. doi:10.1006/bbrc.2000.3935. PMID 11118313.
  6. ^ Browman DT, Resek ME, Zajchowski LD, Robbins SM (Jul 2006). "Erlin-1 and erlin-2 are novel members of the prohibitin family of proteins that define lipid-raft-like domains of the ER". J Cell Sci. 119 (Pt 15): 3149–60. doi:10.1242/jcs.03060. PMID 16835267.
  7. ^ "Entrez Gene: ERLIN1 ER lipid raft associated 1".
  8. ^ Browman, Duncan T.; Hoegg, Maja B.; Robbins, Stephen M. (August 2007). "The SPFH domain-containing proteins: more than lipid raft markers". Trends in Cell Biology. 17 (8): 394–402. doi:10.1016/j.tcb.2007.06.005.
  9. ^ Qiao, Zhu; Yokoyama, Tatsuhiko; Yan, Xin-Fu; Beh, Ing Tsyr; Shi, Jian; Basak, Sandip; Akiyama, Yoshinori; Gao, Yong-Gui (May 2022). "Cryo-EM structure of the entire FtsH-HflKC AAA protease complex". Cell Reports. 39 (9): 110890. doi:10.1016/j.celrep.2022.110890.
  10. ^ Yokoyama, Hideshi; Matsui, Ikuo (May 2023). "Higher‐order structure formation using refined monomer structures of lipid raft markers, Stomatin, Prohibitin, Flotillin, and HflK /C‐related proteins". FEBS Open Bio. 13 (5): 926–937. doi:10.1002/2211-5463.13593.
  11. ^ Huber, Michael D.; Vesely, Paul W.; Datta, Kaustuv; Gerace, Larry (11 November 2013). "Erlins restrict SREBP activation in the ER and regulate cellular cholesterol homeostasis". Journal of Cell Biology. 203 (3): 427–436. doi:10.1083/jcb.201305076.

Further reading

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