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2.A.57.1.7
The fluorouridine insensitive 1 (Fur1) or Ent3 pyrimidine nucleoside transporter (Traub et al., 2007). AtENT4, AtENT6 and AtENT7). Three paralogs, Ent4, Ent6 and Ent7, exhibited broad substrate specificity and transported the purine nucleosides adenosine and guanosine, as well as the pyrimidine nucleosides cytidine and uridine (Wormit et al. 2004). The apparent Km values were in the range 3-94 μM, and transport was inhibited strongly by deoxynucleosides, and to a smaller extent by nucleobases.

Accession Number:Q9M0Y3
Protein Name:Ent3
Length:418
Molecular Weight:46208.00
Species:Arabidopsis thaliana [3702]
Number of TMSs:11
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate Fluorouridine, Pyrimidines

Cross database links:

RefSeq: NP_192421.1   
Entrez Gene ID: 825857   
Pfam: PF01733   
KEGG: ath:AT4G05120   

Gene Ontology

GO:0005886 C:plasma membrane
GO:0005337 F:nucleoside transmembrane transporter activity
GO:0015858 P:nucleoside transport

References (2)

[1] “Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana.”  Mayer K.F.X.et.al.   10617198
[2] “Equilibrative nucleoside transporters of Arabidopsis thaliana. cDNA cloning, expression pattern, and analysis of transport activities.”  Li G.et.al.   12810710

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MADRYENQPP EKLQGKYQAM VVCCILGIGS LVSWNSMLTI ADYYYKVFPD YHPSRVLTLV 
61:	YQPFALGTIL ILAYHESKIN TRKRNLIGYI LFTISTFLLI VLDLATKGRG GIGPYIGLCA 
121:	VVASFGLADA TVQGGMIGDL SLMCPELVQS FMGGLAVSGA LTSALRLITK AAFEKTNDGP 
181:	RKGAMMFLAI STCIELLCVF LYAYVFPKLP IVKYYRRKAA SEGSKTVSAD LAAAGIQNQS 
241:	DLTDDDSKNQ RLSNKELLIQ NIDYAVNLFL IYVCTLSIFP GFLYENTGQH GLGDWYALVL 
301:	VAMYNCWDLV GRYTPLVKWL KIENRKLITI AVLSRYLLIP AFYFTAKYGD QGWMIMLISV 
361:	LGLTNGHLTV CIMTIAPKGY KGPEQNALGN LLVIFLLGGI FAGVALDWLW LIGKKNAF