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2.A.123.1.3
Senescence-associated protein 29, SAG29 (SWEET15) of 292 aas and 7 TMSs.  The maize sugar transporters ZmSWEET15a and ZmSWEET15b positively regulate salt tolerance in plant (Wang et al. 2024).  Bacterial diseases like huanglongbing (HLB) and citrus canker severely impact citrus production. HLB, caused by "Candidatus Liberibacter asiaticus" (CLas), leads to tree decline, while citrus canker, caused by Xanthomonas citri pv. citri (Xcc) causes necrotic lesions on leaves and fruit. Mutations in the SWEET15 sugar transporter gene affect responses of citrus to Huanglongbing Disease and Citrus Canker (Khadgi et al. 2025).

Accession Number:Q9FY94
Protein Name:Bidirectional sugar transporter SWEET15
Length:292
Molecular Weight:32936.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:7
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate UDP-sugar

Cross database links:

Entrez Gene ID: 831156   
Pfam: PF03083   
KEGG: ath:AT5G13170   

Gene Ontology

GO:0005887 C:integral to plasma membrane
GO:0051119 F:sugar transmembrane transporter activity
GO:0071215 P:cellular response to abscisic acid stimulus
GO:0071470 P:cellular response to osmotic stress
GO:0071446 P:cellular response to salicylic acid stimulus
GO:0010150 P:leaf senescence

References (5)

[1] “Sequence and analysis of chromosome 5 of the plant Arabidopsis thaliana.”  Tabata S.et.al.   11130714
[2] “Empirical analysis of transcriptional activity in the Arabidopsis genome.”  Yamada K.et.al.   14593172
[3] “Diverse range of gene activity during Arabidopsis thaliana leaf senescence includes pathogen-independent induction of defense-related genes.”  Quirino B.F.et.al.   10412905
[4] “Sugar transporters for intercellular exchange and nutrition of pathogens.”  Chen L.-Q.et.al.   21107422
[5] “An Arabidopsis senescence-associated protein SAG29 regulates cell viability under high salinity.”  Seo P.J.et.al.   20963606

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence 
1:	MGVMINHHFL AFIFGILGNV ISFLVFLAPV PTFYRIYKRK STESFQSLPY QVSLFSCMLW 
61:	LYYALIKKDA FLLITINSFG CVVETLYIAM FFAYATREKR ISAMKLFIAM NVAFFSLILM 
121:	VTHFVVKTPP LQVSVLGWIC VAISVSVFAA PLMIVARVIK TKSVEYMPFT LSFFLTISAV 
181:	MWFAYGLFLN DICIAIPNVV GFVLGLLQMV LYLVYRNSNE KPEKINSSEQ QLKSIVVMSP 
241:	LGVSEVHPVV TESVDPLSEA VHHEDLSKVT KVEEPSIENG KCYVEATRPE TV