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2.A.1.1.49
The sink-specific, stress-regulated monosaccharide uptake porter, STP4. (Induced upon wounding or infection with bacteria or fungi; expressed in roots and flowers) (Truernit et al., 1996)

Accession Number:Q39228
Protein Name:Sugar transport protein 4 aka STP4
Length:514
Molecular Weight:57095.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:12
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate Sugars

Cross database links:

Genevestigator: Q39228
eggNOG: KOG0254
HEGENOM: HBG744444
RefSeq: NP_188627.1   
Entrez Gene ID: 821531   
Pfam: PF00083   
KEGG: ath:AT3G19930   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane
GO:0015145 F:monosaccharide transmembrane transporter ac...
GO:0008506 F:sucrose:hydrogen symporter activity
GO:0015770 P:sucrose transport
GO:0055085 P:transmembrane transport

References (6)

[1] “The sink-specific and stress-regulated Arabidopsis STP4 gene: enhanced expression of a gene encoding a monosaccharide transporter by wounding, elicitors, and pathogen challenge.”  Truernit E.et.al.   8989877
[2] “Structural analysis of Arabidopsis thaliana chromosome 3. I. Sequence features of the regions of 4,504,864 bp covered by sixty P1 and TAC clones.”  Sato S.et.al.   10819329
[3] “Empirical analysis of transcriptional activity in the Arabidopsis genome.”  Yamada K.et.al.   14593172
[4] “Molecular responses to aphid feeding in Arabidopsis in relation to plant defense pathways.”  Moran P.J.et.al.   11161062
[5] “The monosaccharide transporter gene, AtSTP4, and the cell-wall invertase, Atbetafruct1, are induced in Arabidopsis during infection with the fungal biotroph Erysiphe cichoracearum.”  Fotopoulos V.et.al.   12805612
[6] “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:	MAGGFVSQTP GVRNYNYKLT PKVFVTCFIG AFGGLIFGYD LGISGGVTSM EPFLEEFFPY 
61:	VYKKMKSAHE NEYCRFDSQL LTLFTSSLYV AALVSSLFAS TITRVFGRKW SMFLGGFTFF 
121:	IGSAFNGFAQ NIAMLLIGRI LLGFGVGFAN QSVPVYLSEM APPNLRGAFN NGFQVAIIFG 
181:	IVVATIINYF TAQMKGNIGW RISLGLACVP AVMIMIGALI LPDTPNSLIE RGYTEEAKEM 
241:	LQSIRGTNEV DEEFQDLIDA SEESKQVKHP WKNIMLPRYR PQLIMTCFIP FFQQLTGINV 
301:	ITFYAPVLFQ TLGFGSKASL LSAMVTGIIE LLCTFVSVFT VDRFGRRILF LQGGIQMLVS 
361:	QIAIGAMIGV KFGVAGTGNI GKSDANLIVA LICIYVAGFA WSWGPLGWLV PSEISPLEIR 
421:	SAAQAINVSV NMFFTFLVAQ LFLTMLCHMK FGLFFFFAFF VVIMTIFIYL MLPETKNVPI 
481:	EEMNRVWKAH WFWGKFIPDE AVNMGAAEMQ QKSV