TCDB is operated by the Saier Lab Bioinformatics Group
« See all members of the family


1.A.1.7.4
The two pore tonoplast TPK-type K+ channel; maintains K+ homeostasis in plant cells (Hamamoto et al., 2008); activated by 14-3-3 proteins (Latz et al., 2007).

Accession Number:A9QMN9
Protein Name:TPK1
Length:428
Molecular Weight:47446.00
Species:Nicotiana tabacum (Common tobacco) [4097]
Number of TMSs:5
Location1 / Topology2 / Orientation3: Cytoplasm1
Substrate K+

Cross database links:

Pfam: PF07885   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005267 F:potassium channel activity
GO:0006813 P:potassium ion transport

References (1)

[1] “Characterization of a tobacco TPK-type K+ channel as a novel tonoplast K+ channel using yeast tonoplasts.”  Hamamoto S.et.al.   18029350

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)
Window Size: Angle:  
Window Size: Angle:  
FASTA formatted sequence
1:	MEKEPLLPYV STRTPPHPPS YPAPISLCPL PEDNEISIPP PLTPSELKER LIFGTSEASA 
61:	TALDAFTFNN FTSPELSASS SSSAQKSNLE NTDIHNSWLL DPNYPSWTKS NLHRSKTAPA 
121:	MATINDIDHS PDPKPPQFGK NTIVGQGVVL LILYLTLGVG IYSLFRDHFK ATETHPVVDA 
181:	LYFCIVTMCT IGYGDITPDS TPTKLFSILF VLVGFGFIDI LLTGMVSYVL DLQENYLLRS 
241:	IKSGSVHDAR SYIIDVKKGR MRIRMKVALA LGVVVLCIGI GVAVMHFVEK LGWLDAFYLS 
301:	VMSVTTVGYG DRAFNSMAGR IFASIWLLVS TLAVARAFLY LAEARVDKRH RKMAKWVLDQ 
361:	DLTVSQFLAA DIDNNGFVSK AEYVIYKLKE MGKISDKDVM LICKQFERLD AGNCGRITLA 
421:	DLMESHHH