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2.A.2.4.3
Sucrose:H+ symporter, Suc3 or Sut3 of 464 aas. Expressed in cells adjacent to the vascular tissue and in a carpel cell layer). Km (sucrose)= 1.9 mM; maltose is a competitor (Meyer et al., 2000).

Accession Number:O80605
Protein Name:Sucrose transport protein SUC3
Length:594
Molecular Weight:63973.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:12
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate Sucrose, H+

Cross database links:

Genevestigator: O80605
eggNOG: KOG0637
HEGENOM: HBG587870
RefSeq: NP_178389.1   
Entrez Gene ID: 814817   
Pfam: PF07690   
KEGG: ath:AT2G02860   

Gene Ontology

GO:0005887 C:integral to plasma membrane
GO:0008515 F:sucrose transmembrane transporter activity
GO:0015293 F:symporter activity
GO:0009611 P:response to wounding
GO:0015770 P:sucrose transport
GO:0055085 P:transmembrane transport

References (5)

[1] “AtSUC3, a gene encoding a new Arabidopsis sucrose transporter, is expressed in cells adjacent to the vascular tissue and in a carpel cell layer.”  Meyer S.et.al.   11135120
[2] “Sequence and analysis of chromosome 2 of the plant Arabidopsis thaliana.”  Lin X.et.al.   10617197
[3] “SUT2, a putative sucrose sensor in sieve elements.”  Barker L.et.al.   10899981
[4] “Interactions between co-expressed Arabidopsis sucrose transporters in the split-ubiquitin system.”  Schulze W.X.et.al.   12689351
[5] “Wounding enhances expression of AtSUC3, a sucrose transporter from Arabidopsis sieve elements and sink tissues.”  Meyer S.et.al.   14739351

External Searches:

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  • 2° Structure (Network Protein Sequence Analysis)

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MSDSVSISVP YRNLRKEIEL ETVTKHRQNE SGSSSFSESA SPSNHSDSAD GESVSKNCSL 
61:	VTLVLSCTVA AGVQFGWALQ LSLLTPYIQT LGISHAFSSF IWLCGPITGL VVQPFVGIWS 
121:	DKCTSKYGRR RPFILVGSFM ISIAVIIIGF SADIGYLLGD SKEHCSTFKG TRTRAAVVFI 
181:	IGFWLLDLAN NTVQGPARAL LADLSGPDQR NTANAVFCLW MAIGNILGFS AGASGKWQEW 
241:	FPFLTSRACC AACGNLKAAF LLAVVFLTIC TLVTIYFAKE IPFTSNKPTR IQDSAPLLDD 
301:	LQSKGLEHSK LNNGTANGIK YERVERDTDE QFGNSENEHQ DETYVDGPGS VLVNLLTSLR 
361:	HLPPAMHSVL IVMALTWLSW FPFFLFDTDW MGREVYHGDP TGDSLHMELY DQGVREGALG 
421:	LLLNSVVLGI SSFLIEPMCQ RMGARVVWAL SNFTVFACMA GTAVISLMSL SDDKNGIEYI 
481:	MRGNETTRTA AVIVFALLGF PLAITYSVPF SVTAEVTADS GGGQGLAIGV LNLAIVIPQM 
541:	IVSLGAGPWD QLFGGGNLPA FVLASVAAFA AGVIALQRLP TLSSSFKSTG FHIG