ID:SCRB1_HUMAN DESCRIPTION: RecName: Full=Scavenger receptor class B member 1; Short=SRB1; AltName: Full=CD36 and LIMPII analogous 1; Short=CLA-1; AltName: Full=CD36 antigen-like 1; AltName: Full=Collagen type I receptor, thrombospondin receptor-like 1; AltName: Full=SR-BI; AltName: CD_antigen=CD36; FUNCTION: Receptor for different ligands such as phospholipids, cholesterol ester, lipoproteins, phosphatidylserine and apoptotic cells. Probable receptor for HDL, located in particular region of the plasma membrane, called caveolae. Facilitates the flux of free and esterified cholesterol between the cell surface and extracellular donors and acceptors, such as HDL and to a lesser extent, apoB-containing lipoproteins and modified lipoproteins. Probably involved in the phagocytosis of apoptotic cells, via its phosphatidylserine binding activity. Receptor for hepatitis C virus glycoprotein E2. Binding between SCARB1 and E2 was found to be independent of the genotype of the viral isolate. Plays an important role in the uptake of HDL cholesteryl ester (By similarity). SUBUNIT: Plays a critical role in HCV attachment and/or cell entry by interacting with HCV E1/E2 glycoproteins heterodimer. The C- terminal region binds to PDZK1 (By similarity). INTERACTION: P55345:PRMT2; NbExp=1; IntAct=EBI-78657, EBI-78458; SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein. Membrane, caveola; Multi-pass membrane protein. Note=Predominantly localized to cholesterol and sphingomyelin-enriched domains within the plasma membrane, called caveolae. TISSUE SPECIFICITY: Widely expressed. PTM: N-glycosylated. PTM: The six cysteines of the extracellular domain are all involved in intramolecular disulfide bonds (By similarity). POLYMORPHISM: Genetic variations in SCARB1 define the high density lipoprotein cholesterol level quantitative trait locus 6 (HDLCQ16) [MIM:610762]. SIMILARITY: Belongs to the CD36 family.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on Q8WTV0
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
Z22555 - H.sapiens encoding CLA-1 mRNA. BC022087 - Homo sapiens scavenger receptor class B, member 1, mRNA (cDNA clone IMAGE:3010672), with apparent retained intron. BC080647 - Homo sapiens scavenger receptor class B, member 1, mRNA (cDNA clone MGC:99530 IMAGE:6576008), complete cds. BC093732 - Homo sapiens scavenger receptor class B, member 1, mRNA (cDNA clone MGC:120767 IMAGE:7939577), complete cds. BC112037 - Homo sapiens scavenger receptor class B, member 1, mRNA (cDNA clone MGC:138242 IMAGE:8327505), complete cds. BC143319 - Homo sapiens scavenger receptor class B, member 1, mRNA (cDNA clone MGC:176841 IMAGE:9051824), complete cds. AF515445 - Homo sapiens scavenger receptor class B type III mRNA, complete cds. AB209436 - Homo sapiens mRNA for Scavenger receptor class B member 1 variant protein. AK124112 - Homo sapiens cDNA FLJ42118 fis, clone TESTI2005610, highly similar to Scavenger receptor class B member 1. AK302779 - Homo sapiens cDNA FLJ55139 complete cds, highly similar to Scavenger receptor class B member 1. AK304730 - Homo sapiens cDNA FLJ61086 complete cds, highly similar to Scavenger receptor class B member 1. KU177964 - Homo sapiens scavenger receptor class B member 1 isoform 1 (SCARB1) mRNA, partial cds, alternatively spliced. KU177965 - Homo sapiens scavenger receptor class B member 1 isoform 2 (SCARB1) mRNA, complete cds, alternatively spliced. DQ892837 - Synthetic construct clone IMAGE:100005467; FLH190165.01X; RZPDo839F0375D scavenger receptor class B, member 1 (SCARB1) gene, encodes complete protein. DQ896083 - Synthetic construct Homo sapiens clone IMAGE:100010543; FLH190161.01L; RZPDo839F0365D scavenger receptor class B, member 1 (SCARB1) gene, encodes complete protein. KJ901323 - Synthetic construct Homo sapiens clone ccsbBroadEn_10717 SCARB1 gene, encodes complete protein. KR710270 - Synthetic construct Homo sapiens clone CCSBHm_00010986 SCARB1 (SCARB1) mRNA, encodes complete protein. BC034322 - Homo sapiens scavenger receptor class B, member 1, mRNA (cDNA clone IMAGE:4779572), with apparent retained intron. JD307246 - Sequence 288270 from Patent EP1572962. JD194501 - Sequence 175525 from Patent EP1572962. JD242384 - Sequence 223408 from Patent EP1572962. JD270716 - Sequence 251740 from Patent EP1572962. JD282101 - Sequence 263125 from Patent EP1572962. JD367108 - Sequence 348132 from Patent EP1572962. JD249152 - Sequence 230176 from Patent EP1572962. JD270891 - Sequence 251915 from Patent EP1572962. JD477074 - Sequence 458098 from Patent EP1572962. JD477770 - Sequence 458794 from Patent EP1572962. JD415862 - Sequence 396886 from Patent EP1572962. JD129931 - Sequence 110955 from Patent EP1572962. JD264213 - Sequence 245237 from Patent EP1572962. JD200715 - Sequence 181739 from Patent EP1572962. JD515340 - Sequence 496364 from Patent EP1572962. JD453179 - Sequence 434203 from Patent EP1572962. JD501345 - Sequence 482369 from Patent EP1572962. JD387382 - Sequence 368406 from Patent EP1572962. JD191022 - Sequence 172046 from Patent EP1572962. JD104501 - Sequence 85525 from Patent EP1572962. JD051126 - Sequence 32150 from Patent EP1572962. JD469904 - Sequence 450928 from Patent EP1572962. AF254409 - Homo sapiens scavenger receptor class B type III SR-BIII mRNA, partial cds. JD025767 - Sequence 6791 from Patent EP1572962. JD029837 - Sequence 10861 from Patent EP1572962.
Biochemical and Signaling Pathways
Reactome (by CSHL, EBI, and GO)
Protein Q8WTV0 (Reactome details) participates in the following event(s):
R-HSA-349637 spherical HDL and SR-BI receptor form a complex at the cell surface R-HSA-2197646 SCARB1 (SR-BI, CLA-1) binds ligands R-HSA-349638 Disassembly of SR-BI-bound spherical HDL R-HSA-8964011 HDL clearance R-HSA-3000471 Scavenging by Class B Receptors R-HSA-8964043 Plasma lipoprotein clearance R-HSA-2173782 Binding and Uptake of Ligands by Scavenger Receptors R-HSA-174824 Plasma lipoprotein assembly, remodeling, and clearance R-HSA-5653656 Vesicle-mediated transport R-HSA-382551 Transport of small molecules