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3.A.1.2.12
The (deoxy)ribonucleoside permease; probably takes up all deoxy- and ribonucleosides (cytidine, uridine, adenosine and toxic analogues, fluorocytidine and fluorouridine tested), but not ribose or nucleobases (Webb and Hosie, 2006)

Accession Number:Q8DU39
Protein Name:RnsD
Length:318
Molecular Weight:33775.00
Species:Streptococcus mutans [1309]
Number of TMSs:9
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate deoxyribonucleoside

Cross database links:

RefSeq: NP_721505.1   
Entrez Gene ID: 1028430   
Pfam: PF02653   
BioCyc: SMUT210007:SMU_1118C-MONOMER   
KEGG: smu:SMU.1118c    smu:SMU.1118c   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane
GO:0005215 F:transporter activity
GO:0008643 P:carbohydrate transport

References (2)

[1] “Genome sequence of Streptococcus mutans UA159, a cariogenic dental pathogen.”  Ajdic D.J.et.al.   12397186
[2] “Genome sequence of Streptococcus mutans UA159, a cariogenic dental pathogen.”  Ajdic D.J.et.al.   12397186

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence 
1:	MSLENMLALL ISSMLVYATP LIFTSIGGVF SERSGVVNVG LEGIMVMGAF AGVVFNIEFA 
61:	HSFGKATPWI AALVGGLVGL LFSLLHALAT INFRADHIVS GTVLNLLAPS LAVFFVKALY 
121:	NKGQTDNISQ SFGKFDFPIL SHIPFLGPIF FQGTSLVAYL AVLFSVFAWF ILTKTKFGLR 
181:	LRSVGEHPQA ADTLGINVYL MRYLGVMISG LLGGIGGAIY AQSISVNFAG TTILGPGFIA 
241:	LAAMIFGKWN PIGAMLSSLF FGLSQSLAVI GGQLPFLSKI PTVYLQIAPY ALTILVLAVF 
301:	FGQAVAPKAD GINYIKSK