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2.A.1.1.61
High affinity monosaccharide (Km = 25 µM) transporter (takes up glucose, galactose, mannose, xylose and 3-O-methylglucose, but not fructose and ribose), STP11 (expressed in pollen tubes) (Schneidereit et al., 2005).  This protein is also called Sugar Transport Protein (STP).  Expression profiles of homologues in cabbage have been studied (Zhang et al. 2019).

Accession Number:Q9FMX3
Protein Name:Sugar transport protein 11
Length:514
Molecular Weight:56725.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:12
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate Sugars

Cross database links:

Genevestigator: Q9FMX3
eggNOG: KOG0254
HEGENOM: HBG744444
RefSeq: NP_197718.1   
Entrez Gene ID: 832391   
Pfam: PF00083   
KEGG: ath:AT5G23270   

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:0008643 P:carbohydrate transport
GO:0055085 P:transmembrane transport

References (3)

[1] “AtSTP11, a pollen tube-specific monosaccharide transporter in Arabidopsis.”  Schneidereit A.et.al.   15565288
[2] “Structural analysis of Arabidopsis thaliana chromosome 5. III. Sequence features of the regions of 1,191,918 bp covered by seventeen physically assigned P1 clones.”  Nakamura Y.et.al.   9501997
[3] “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:	MAGGAFIDES GHGGDYEGRV TAFVMITCIV AAMGGLLFGY DIGISGGVIS MEDFLTKFFP 
61:	DVLRQMQNKR GRETEYCKYD NELLTLFTSS LYLAALFASF LASTITRLFG RKVSMVIGSL 
121:	AFLSGALLNG LAINLEMLII GRLFLGVGVG FANQSVPLYL SEMAPAKIRG ALNIGFQLAI 
181:	TIGILAANIV NYVTPKLQNG IGWRLSLGLA GVPAVMMLVG CFFLPDTPNS ILERGNKEKA 
241:	KEMLQKIRGT MEVEHEFNEL CNACEAAKKV KHPWTNIMQA RYRPQLTFCT FIPFFQQLTG 
301:	INVIMFYAPV LFKTIGFGND ASLISAVITG LVNVLSTIVS IYSVDKFGRR ALFLQGGFQM 
361:	IVTQIAVGSM IGWKFGFNGE GNLSGVDADI ILALICLYVA GFAWSWGPLG WLVPSEICPL 
421:	EIRSAGQSLN VSVNMFFTFF IGQFFLTMLC HMKFGLFYFF AGMVLIMTIF IYFLLPETKG 
481:	VPIEEMGKVW KEHRYWGKYS NNDDGDDVDD DAYF