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Q8R139

- S29A4_MOUSE

UniProt

Q8R139 - S29A4_MOUSE

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Protein
Equilibrative nucleoside transporter 4
Gene
Slc29a4, Ent4
Organism
Mus musculus (Mouse)
Status
Reviewed - Annotation score: 3 out of 5 - Experimental evidence at protein leveli

Functioni

Functions as a polyspecific organic cation transporter, efficiently transporting many organic cations such as monoamine neurotransmitters 1-methyl-4-phenylpyridinium and biogenic amines including serotonin, dopamine, norepinephrine and epinephrine. May play a role in regulating central nervous system homeostasis of monoamine neurotransmitters. May be involved in luminal transport of organic cations in the kidney and seems to use luminal proton gradient to drive organic cation reabsorptprev reabsorption. Does not seem to transport nucleoside and nucleoside analogs such as uridine, cytidine, thymidine, adenosine, inosine, guanosine, and azidothymidine. In (1 Publication) adenosine is efficiently transported but in a fashion highly sensitive to extracellular pH, with maximal activity in the pH range 5.5 to 6.5. Glu-206 is essential for the cation selectivity and may function as the charge sensor for cationic substrates. Transport is chloride and sodium-independent but appears to be sensitive to changes in membrane potential. Weakly inhibited by the classical inhibitors of equilibrative nucleoside transport, dipyridamole, dilazep, and nitrobenzylthioinosine. May play a role in the regulation of extracellular adenosine concentrations in cardiac tissues, in particular during ischemia By similarity.1 Publication

GO - Molecular functioni

  1. nucleoside transmembrane transporter activity Source: InterPro
Complete GO annotation...

Keywords - Biological processi

Transport

Names & Taxonomyi

Protein namesi
Recommended name:
Equilibrative nucleoside transporter 4
Alternative name(s):
Solute carrier family 29 member 4
Gene namesi
Name:Slc29a4
Synonyms:Ent4
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeMusMus
ProteomesiUP000000589: Chromosome 5

Organism-specific databases

MGIiMGI:2385330. Slc29a4.

Subcellular locationi

Cell membrane; Multi-pass membrane protein Reviewed prediction. Apical cell membrane; Multi-pass membrane protein By similarity
Note: Located to the plasma membranes of ventricular myocytes and vascular endothelial cells. Targeted to the apical membranes of differentiated kidney epithelial cells By similarity.

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini1 – 6868Extracellular Reviewed prediction
Add
BLAST
Transmembranei69 – 8921Helical; Reviewed prediction
Add
BLAST
Topological domaini90 – 10112Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei102 – 12221Helical; Reviewed prediction
Add
BLAST
Topological domaini123 – 13917Extracellular Reviewed prediction
Add
BLAST
Transmembranei140 – 16021Helical; Reviewed prediction
Add
BLAST
Topological domaini161 – 1666Cytoplasmic Reviewed prediction
Transmembranei167 – 18721Helical; Reviewed prediction
Add
BLAST
Topological domaini188 – 23144Extracellular Reviewed prediction
Add
BLAST
Transmembranei232 – 25221Helical; Reviewed prediction
Add
BLAST
Topological domaini253 – 34694Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei347 – 36721Helical; Reviewed prediction
Add
BLAST
Topological domaini368 – 3769Extracellular Reviewed prediction
Transmembranei377 – 39721Helical; Reviewed prediction
Add
BLAST
Topological domaini398 – 41114Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei412 – 43221Helical; Reviewed prediction
Add
BLAST
Topological domaini433 – 44513Extracellular Reviewed prediction
Add
BLAST
Transmembranei446 – 46621Helical; Reviewed prediction
Add
BLAST
Topological domaini467 – 48115Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei482 – 50423Helical; Reviewed prediction
Add
BLAST
Topological domaini505 – 52824Extracellular Reviewed prediction
Add
BLAST

GO - Cellular componenti

  1. apical plasma membrane Source: UniProtKB-SubCell
  2. integral component of membrane Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 528528Equilibrative nucleoside transporter 4
PRO_0000326252Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Glycosylationi521 – 5211N-linked (GlcNAc...)1 Publication

Post-translational modificationi

N-glycosylated.1 Publication

Keywords - PTMi

Glycoprotein

Proteomic databases

PRIDEiQ8R139.

PTM databases

PhosphoSiteiQ8R139.

Expressioni

Tissue specificityi

Expressed in heart.1 Publication

Gene expression databases

BgeeiQ8R139.
GenevestigatoriQ8R139.

Structurei

3D structure databases

ProteinModelPortaliQ8R139.

Family & Domainsi

Compositional bias

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Compositional biasi515 – 5206Poly-Ala

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG249415.
GeneTreeiENSGT00390000002232.
HOGENOMiHOG000048076.
HOVERGENiHBG095787.
InParanoidiQ8R139.
KOiK03323.
OMAiAHEVTHS.
OrthoDBiEOG73Z2T0.
PhylomeDBiQ8R139.
TreeFamiTF313950.

Family and domain databases

InterProiIPR002259. Eqnu_transpt.
IPR016196. MFS_dom_general_subst_transpt.
[Graphical view]
PANTHERiPTHR10332. PTHR10332. 1 hit.
PfamiPF01733. Nucleoside_tran. 1 hit.
[Graphical view]
PRINTSiPR01130. DERENTRNSPRT.
SUPFAMiSSF103473. SSF103473. 2 hits.

Sequencei

Sequence statusi: Complete.

Q8R139-1 [UniParc]FASTAAdd to Basket

« Hide

MGSIGSQRLK EPCVAATSDQ SVVTSFSFDN FQLETTAEGA QDPGIRVRGV    50
PTFTDSAVEE PVPDDRYHAI YFAMLLAGVG FLLPYNSFIT DVDYLHHKYP 100
GTSIVFDMSL TYILVALAAV LLNNVVVERL NLHTRITTGY LLALGPLLFI 150
SICDVWLQLF SHDQAYAINL AAVGTVAFGC TVQQSSFYGY TGLLPKRYTQ 200
GVMTGESTAG VMISLSRILT KLLLPDERAS TIIFFLVSAG LELLCFLLHL 250
LVRRSRFVLY YTTRPRDSRP VQAGYRVHHD VASGDIHFEH QTPALSSSRS 300
PKESPAHEVT HSNSGVYMRF DVPRPRVKRS WPTFRALLLH RYVVARVIWA 350
DMLSIAVTYF ITLCLFPGLE SEIRHCVLGE WLPILVMAVF NLSDFVGKIL 400
AALPVEWRGT HLLACSCLRV VFIPLFILCV YPSGMPALRH PAWPCVFSLL 450
MGISNGYFGS VPMILAAGKV SPKQRELAGN TMTVSYMSGL TLGSAVAYCT 500
YSLTRDAHGS CFQTATAAAA NDSIPVGP 528
Length:528
Mass (Da):58,099
Last modified:June 1, 2002 - v1
Checksum:i96379B4FBB2AD2ED
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
BC025599 mRNA. Translation: AAH25599.1.
CCDSiCCDS39364.1.
RefSeqiNP_666369.1. NM_146257.2.
XP_006504769.1. XM_006504706.1.
UniGeneiMm.125942.

Genome annotation databases

EnsembliENSMUST00000058418; ENSMUSP00000059896; ENSMUSG00000050822.
GeneIDi243328.
KEGGimmu:243328.
UCSCiuc009aiz.1. mouse.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
BC025599 mRNA. Translation: AAH25599.1 .
CCDSi CCDS39364.1.
RefSeqi NP_666369.1. NM_146257.2.
XP_006504769.1. XM_006504706.1.
UniGenei Mm.125942.

3D structure databases

ProteinModelPortali Q8R139.
ModBasei Search...
MobiDBi Search...

PTM databases

PhosphoSitei Q8R139.

Proteomic databases

PRIDEi Q8R139.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

Ensembli ENSMUST00000058418 ; ENSMUSP00000059896 ; ENSMUSG00000050822 .
GeneIDi 243328.
KEGGi mmu:243328.
UCSCi uc009aiz.1. mouse.

Organism-specific databases

CTDi 222962.
MGIi MGI:2385330. Slc29a4.

Phylogenomic databases

eggNOGi NOG249415.
GeneTreei ENSGT00390000002232.
HOGENOMi HOG000048076.
HOVERGENi HBG095787.
InParanoidi Q8R139.
KOi K03323.
OMAi AHEVTHS.
OrthoDBi EOG73Z2T0.
PhylomeDBi Q8R139.
TreeFami TF313950.

Miscellaneous databases

NextBioi 385721.
PROi Q8R139.
SOURCEi Search...

Gene expression databases

Bgeei Q8R139.
Genevestigatori Q8R139.

Family and domain databases

InterProi IPR002259. Eqnu_transpt.
IPR016196. MFS_dom_general_subst_transpt.
[Graphical view ]
PANTHERi PTHR10332. PTHR10332. 1 hit.
Pfami PF01733. Nucleoside_tran. 1 hit.
[Graphical view ]
PRINTSi PR01130. DERENTRNSPRT.
SUPFAMi SSF103473. SSF103473. 2 hits.
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
    The MGC Project Team
    Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
    Tissue: Mammary tumor.
  2. "Distribution and functional characterization of equilibrative nucleoside transporter-4, a novel cardiac adenosine transporter activated at acidic pH."
    Barnes K., Dobrzynski H., Foppolo S., Beal P.R., Ismat F., Scullion E.R., Sun L., Tellez J., Ritzel M.W., Claycomb W.C., Cass C.E., Young J.D., Billeter-Clark R., Boyett M.R., Baldwin S.A.
    Circ. Res. 99:510-519(2006) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, TISSUE SPECIFICITY, GLYCOSYLATION AT ASN-521.

Entry informationi

Entry nameiS29A4_MOUSE
AccessioniPrimary (citable) accession number: Q8R139
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 18, 2008
Last sequence update: June 1, 2002
Last modified: July 9, 2014
This is version 78 of the entry and version 1 of the sequence. [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

External Data

Dasty 3

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