Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Oxysterol-binding protein 1

Gene

Osbp

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Lipid transporter involved in lipid countertransport between the Golgi complex and membranes of the endoplasmic reticulum: specifically exchanges sterol with phosphatidylinositol 4-phosphate (PI4P), delivering sterol to the Golgi in exchange for PI4P, which is degraded by the SAC1/SACM1L phosphatase in the endoplasmic reticulum. Binds cholesterol and a range of oxysterols including 25-hydroxycholesterol. Cholesterol binding promotes the formation of a complex with PP2A and a tyrosine phosphatase which dephosphorylates ERK1/2, whereas 25-hydroxycholesterol causes its disassembly. Regulates cholesterol efflux by decreasing ABCA1 stability.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei312SterolBy similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processLipid transport, Transport
LigandLipid-binding

Enzyme and pathway databases

ReactomeiR-MMU-1660661 Sphingolipid de novo biosynthesis
R-MMU-192105 Synthesis of bile acids and bile salts

Names & Taxonomyi

Protein namesi
Recommended name:
Oxysterol-binding protein 1
Gene namesi
Name:Osbp
Synonyms:Kiaa42201 Publication
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
Proteomesi
  • UP000000589 Componenti: Chromosome 19

Organism-specific databases

MGIiMGI:97447 Osbp

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Endoplasmic reticulum, Golgi apparatus, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
ChainiPRO_00003492622 – 805Oxysterol-binding protein 1Add BLAST804

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei2N-acetylalanineBy similarity1
Modified residuei188PhosphoserineCombined sources1
Modified residuei191PhosphoserineCombined sources1
Modified residuei196PhosphoserineCombined sources1
Modified residuei236PhosphoserineBy similarity1
Modified residuei238PhosphoserineCombined sources1
Modified residuei336PhosphoserineBy similarity1
Modified residuei343PhosphoserineCombined sources1
Modified residuei349PhosphoserineCombined sources1
Modified residuei375PhosphothreonineCombined sources1
Modified residuei377PhosphoserineBy similarity1
Modified residuei380PhosphoserineCombined sources1
Modified residuei383PhosphoserineCombined sources1
Modified residuei384PhosphoserineBy similarity1
Modified residuei387PhosphoserineBy similarity1

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

EPDiQ3B7Z2
MaxQBiQ3B7Z2
PaxDbiQ3B7Z2
PeptideAtlasiQ3B7Z2
PRIDEiQ3B7Z2

PTM databases

iPTMnetiQ3B7Z2
PhosphoSitePlusiQ3B7Z2

Expressioni

Gene expression databases

BgeeiENSMUSG00000024687
GenevisibleiQ3B7Z2 MM

Interactioni

Subunit structurei

Homodimer or homotrimer. Interacts (via FFAT motif) with VAPA.By similarity

GO - Molecular functioni

Protein-protein interaction databases

ComplexPortaliCPX-507 Vapa-Ospb complex
STRINGi10090.ENSMUSP00000025590

Structurei

3D structure databases

ProteinModelPortaliQ3B7Z2
SMRiQ3B7Z2
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini86 – 179PHPROSITE-ProRule annotationAdd BLAST94

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni115 – 120Phosphatidylinositol 4-phosphate bindingBy similarity6
Regioni404 – 455Sterol bindingBy similarityAdd BLAST52
Regioni491 – 494Phosphatidylinositol 4-phosphate bindingBy similarity4
Regioni520 – 521Phosphatidylinositol 4-phosphate bindingBy similarity2

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Coiled coili289 – 324Sequence analysisAdd BLAST36
Coiled coili728 – 759Sequence analysisAdd BLAST32

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Motifi356 – 362FFATBy similarity7

Domaini

The FFAT motif is required for interaction with VATA and proper localization of the protein.By similarity
The PH and the Ala/Gly-rich domains control cholesterol binding without affecting 25-hydroxycholesterol binding.By similarity
The second coiled-coil domain is required for interaction with the tyrosine phosphatase.By similarity

Sequence similaritiesi

Belongs to the OSBP family.Curated

Keywords - Domaini

Coiled coil

Phylogenomic databases

eggNOGiKOG1737 Eukaryota
ENOG410XP9E LUCA
GeneTreeiENSGT00760000119155
HOGENOMiHOG000231233
HOVERGENiHBG053374
InParanoidiQ3B7Z2
KOiK20456
OMAiIHCIFHA
OrthoDBiEOG091G04HK
TreeFamiTF320922

Family and domain databases

Gene3Di2.30.29.30, 1 hit
InterProiView protein in InterPro
IPR037239 OSBP_sf
IPR000648 Oxysterol-bd
IPR018494 Oxysterol-bd_CS
IPR011993 PH-like_dom_sf
IPR001849 PH_domain
PANTHERiPTHR10972 PTHR10972, 1 hit
PfamiView protein in Pfam
PF01237 Oxysterol_BP, 1 hit
PF00169 PH, 1 hit
SMARTiView protein in SMART
SM00233 PH, 1 hit
SUPFAMiSSF144000 SSF144000, 1 hit
PROSITEiView protein in PROSITE
PS01013 OSBP, 1 hit
PS50003 PH_DOMAIN, 1 hit

Sequences (2)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform 1 (identifier: Q3B7Z2-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MAATELRGVV GPGPAAIAAP GGGGAGPPAV GGGGGRGDAG PGPGVAAATA
60 70 80 90 100
ATAGGPGPGA GGVAAGGPGS APPAAGSGGS GAGGSGSARE GWLFKWTNYI
110 120 130 140 150
KGYQRRWFVL SNGLLSYYRS KAEMRHTCRG TINLATANIT VEDSCNFIIS
160 170 180 190 200
NGGAQTYHLK ASSEVERQRW VTALELAKAK AVKMLAESDD SGDEESVSQT
210 220 230 240 250
DKTELQSTLR TLSSKVEDLS TCNDLIAKHG TALQRSLSEL ESLKLPAESN
260 270 280 290 300
EKIKQVNERA TLFRITSNAM INACRDFLML AQTHSKKWQK SLQYERDQRI
310 320 330 340 350
RLEETLEQLA KQHNHLERAF RGATVLPANP PGSAGSGKDQ CCSGKGDMSD
360 370 380 390 400
EDDENEFFDA PEIITMPENL GHKRTGSNIS GASSDVSLDE QYKHQLEETK
410 420 430 440 450
KEKRTRIPYK PNYSLNLWSI MKNCIGKELS KIPMPVNFNE PLSMLQRLTE
460 470 480 490 500
DLEYHELLDR AAKCENSLEQ LCYVAAFTVS SYSTTVFRTS KPFNPLLGET
510 520 530 540 550
FELDRLEENG YRSICEQVSH HPPAAAHHAE SKNGWTLRQE IKITSKFRGK
560 570 580 590 600
YLSIMPLGTI HCIFHSTGHH YTWKKVTTTV HNIIVGKLWI DQSGEIDIVN
610 620 630 640 650
HKTGDKCNLK FVPYSYFSRD VARKVTGEVT DPSGKVHFAL LGTWDEKMDC
660 670 680 690 700
FKVQAASGEN GGDARQRGHE AEDSRVMLWK RNPLPKNAEN MYYFSELALT
710 720 730 740 750
LNAWEGGTAP TDSRLRPDQR LMENGRWDEA NAEKQRLEEK QRLSRKKREA
760 770 780 790 800
EAAKATEDGT PHDPYKALWF ERKKDPVTRE LTHIYSGEYW ECKEKQDWGS

CPDIF
Length:805
Mass (Da):88,797
Last modified:February 6, 2013 - v3
Checksum:i0922E5C6D660B425
GO
Isoform 2 (identifier: Q3B7Z2-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-268: Missing.
     269-272: AMIN → MLQL

Note: No experimental confirmation available.
Show »
Length:537
Mass (Da):61,670
Checksum:i6FF692745FD305DC
GO

Sequence cautioni

The sequence AAI07328 differs from that shown. Probable cloning artifact.Curated
The sequence AAI07329 differs from that shown. Probable cloning artifact.Curated

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Alternative sequenceiVSP_0352811 – 268Missing in isoform 2. 1 PublicationAdd BLAST268
Alternative sequenceiVSP_035282269 – 272AMIN → MLQL in isoform 2. 1 Publication4

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK132663 mRNA Translation: BAE21289.1
AC124464 Genomic DNA No translation available.
BC094342 mRNA Translation: AAH94342.1
BC107327 mRNA Translation: AAI07328.1 Sequence problems.
BC107328 mRNA Translation: AAI07329.1 Sequence problems.
AK220301 mRNA Translation: BAD90226.1
CCDSiCCDS37925.1 [Q3B7Z2-1]
RefSeqiNP_001028346.1, NM_001033174.1 [Q3B7Z2-1]
XP_006527502.1, XM_006527439.3 [Q3B7Z2-2]
UniGeneiMm.291279

Genome annotation databases

EnsembliENSMUST00000025590; ENSMUSP00000025590; ENSMUSG00000024687 [Q3B7Z2-1]
GeneIDi76303
KEGGimmu:76303
UCSCiuc008gtj.1 mouse [Q3B7Z2-1]
uc008gtk.1 mouse [Q3B7Z2-2]

Keywords - Coding sequence diversityi

Alternative splicing

Similar proteinsi

Entry informationi

Entry nameiOSBP1_MOUSE
AccessioniPrimary (citable) accession number: Q3B7Z2
Secondary accession number(s): E9QPD4
, Q3V163, Q52KH7, Q570Y8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: September 2, 2008
Last sequence update: February 6, 2013
Last modified: June 20, 2018
This is version 107 of the entry and version 3 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. SIMILARITY comments
    Index of protein domains and families

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health