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2.A.1.1.75
The fructose/xylose:H+ symporter, PMT1 (polyol monosaccharide transporter-1). Also transports other substrates at lower rates. PMT2 is largely of the same sequence and function. Both are present in pollen and young xylem cells (Klepek et al., 2005). A similar ortholog has been identifed in pollen grains of Petunia hybrida (Garrido et al. 2006).

Accession Number:Q9XIH7
Protein Name:Putative polyol transporter 1
Length:511
Molecular Weight:54758.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:12
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate fructose, Xylose, H+

Cross database links:

Genevestigator: Q9XIH7
eggNOG: KOG0254
HEGENOM: HBG744444
Entrez Gene ID: 816109   
Pfam: PF00083   
KEGG: ath:AT2G16120   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane
GO:0022891 F:substrate-specific transmembrane transporte...
GO:0015293 F:symporter activity
GO:0015749 P:monosaccharide transport

References (2)

[1] “Sequence and analysis of chromosome 2 of the plant Arabidopsis thaliana.”  Lin X.et.al.   10617197
[2] “The monosaccharide transporter gene family in land plants is ancient and shows differential subfamily expression and expansion across lineages.”  Johnson D.A.et.al.   16923188

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:	MNSSGVEQGV VIAESEPPRG NRSRYAFACA ILASMTSIIL GYDIGVMSGA SIFIKDDLKL 
61:	SDVQLEILMG ILNIYSLVGS GAAGRTSDWL GRRYTIVLAG AFFFCGALLM GFATNYPFIM 
121:	VGRFVAGIGV GYAMMIAPVY TAEVAPASSR GFLTSFPEIF INIGILLGYV SNYFFSKLPE 
181:	HLGWRFMLGV GAVPSVFLAI GVLAMPESPR WLVLQGRLGD AFKVLDKTSN TKEEAISRLD 
241:	DIKRAVGIPD DMTDDVIVVP NKKSAGKGVW KDLLVRPTPS VRHILIACLG IHFAQQASGI 
301:	DAVVLYSPTI FSKAGLKSKN DQLLATVAVG VVKTLFIVVG TCVVDRFGRR ALLLTSMGGM 
361:	FLSLTALGTS LTVINRNPGQ TLKWAIGLAV TTVMTFVATF SIGAGPVTWV YCSEIFPVRL 
421:	RAQGASLGVM LNRLMSGIIG MTFLSLSKGL TIGGAFLLFA GVAAAAWVFF FTFLPETRGI 
481:	PLEEMETLFG SYTANKKNNS MSKDNEVVDG Q