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2.A.1.14.32
Vesicular glutamate transporter 3 (VGluT3) (Solute carrier family 17 member 8). Loss in mice produces circadian-dependent hyperdopaminergia and amiliorates motor disfunction and dopa-mediated dyskinesias in a model of Parkinson's Disease (Divito et al. 2015). VGLUT3 is expressed selectively in the inner hair cells (IHCs) and transports the neurotransmitter glutamate into synaptic vesicles. Mutation of the SLC17A8 gene is associated with DFNA25 (deafness, autosomal dominant 25), a non-syndromic hearing loss (ADNSHL) in humans (Ryu et al. 2016; ).

Accession Number:Q8NDX2
Protein Name:Vesicular glutamate transporter 3
Length:589
Molecular Weight:64991.00
Species:Homo sapiens (Human) [9606]
Number of TMSs:11
Location1 / Topology2 / Orientation3: Cytoplasmic vesicle1
Substrate glutamate

Cross database links:

Genevestigator: Q8NDX2
eggNOG: COG0477
HEGENOM: HOG000230812
Entrez Gene ID: 246213   
Pfam: PF07690   
KEGG: hsa:246213   

Gene Ontology

GO:0030054 C:cell junction
GO:0016021 C:integral to membrane
GO:0030672 C:synaptic vesicle membrane
GO:0019717 C:synaptosome
GO:0005313 F:L-glutamate transmembrane transporter activity
GO:0015293 F:symporter activity
GO:0006811 P:ion transport
GO:0006836 P:neurotransmitter transport
GO:0007605 P:sensory perception of sound
GO:0006814 P:sodium ion transport
GO:0055085 P:transmembrane transport

References (4)

[1] “Molecular cloning and functional characterization of human vesicular glutamate transporter 3.”  Takamori S.et.al.   12151341
[2] “Complete sequencing and characterization of 21,243 full-length human cDNAs.”  Ota T.et.al.   14702039
[3] “The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).”  The MGC Project Teamet.al.   15489334
[4] “Impairment of SLC17A8 encoding vesicular glutamate transporter-3, VGLUT3, underlies nonsyndromic deafness DFNA25 and inner hair cell dysfunction in null mice.”  Ruel J.et.al.   18674745

External Searches:

  • Search: DB with
  • BLAST ExPASy (Swiss Institute of Bioinformatics (SIB) BLAST)
  • CDD Search (Conserved Domain Database)
  • Search COGs (Clusters of Orthologous Groups of proteins)
  • 2° Structure (Network Protein Sequence Analysis)

Analyze:

Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MPFKAFDTFK EKILKPGKEG VKNAVGDSLG ILQRKIDGTT EEEDNIELNE EGRPVQTSRP 
61:	SPPLCDCHCC GLPKRYIIAI MSGLGFCISF GIRCNLGVAI VEMVNNSTVY VDGKPEIQTA 
121:	QFNWDPETVG LIHGSFFWGY IMTQIPGGFI SNKFAANRVF GAAIFLTSTL NMFIPSAARV 
181:	HYGCVMCVRI LQGLVEGVTY PACHGMWSKW APPLERSRLA TTSFCGSYAG AVVAMPLAGV 
241:	LVQYIGWSSV FYIYGMFGII WYMFWLLQAY ECPAAHPTIS NEEKTYIETS IGEGANVVSL 
301:	SKFSTPWKRF FTSLPVYAII VANFCRSWTF YLLLISQPAY FEEVFGFAIS KVGLLSAVPH 
361:	MVMTIVVPIG GQLADYLRSR QILTTTAVRK IMNCGGFGME ATLLLVVGFS HTKGVAISFL 
421:	VLAVGFSGFA ISGFNVNHLD IAPRYASILM GISNGVGTLS GMVCPLIVGA MTRHKTREEW 
481:	QNVFLIAALV HYSGVIFYGV FASGEKQEWA DPENLSEEKC GIIDQDELAE EIELNHESFA 
541:	SPKKKMSYGA TSQNCEVQKK EWKGQRGATL DEEELTSYQN EERNFSTIS