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2.A.72.3.8
Potassium transporter 2 (AtKT2) (AtKUP2) (AtPOT2)

Accession Number:O22881
Protein Name:Potassium transporter 2
Length:794
Molecular Weight:88630.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:12
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate K+

Cross database links:

Genevestigator: O22881
eggNOG: COG3158
HEGENOM: HOG000218032
Entrez Gene ID: 818649   
Pfam: PF02705   
KEGG: ath:AT2G40540   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane
GO:0015079 F:potassium ion transmembrane transporter activity

References (8)

[1] “A new family of K+ transporters from Arabidopsis that are conserved across phyla.”  Quintero F.J.et.al.   9350997
[2] “Sequence and analysis of chromosome 2 of the plant Arabidopsis thaliana.”  Lin X.et.al.   10617197
[3] “Empirical analysis of transcriptional activity in the Arabidopsis genome.”  Yamada K.et.al.   14593172
[4] “AtKUP1: an Arabidopsis gene encoding high-affinity potassium transport activity.”  Kim E.J.et.al.   9477571
[5] “A mutation in the Arabidopsis KT2/KUP2 potassium transporter gene affects shoot cell expansion.”  Elumalai R.P.et.al.   11826303
[6] “Phylogenetic relationships within cation transporter families of Arabidopsis.”  Maeser P.et.al.   11500563
[7] “Large-scale analysis of in vivo phosphorylated membrane proteins by immobilized metal ion affinity chromatography and mass spectrometry.”  Nuehse T.S.et.al.   14506206
[8] “Phosphoproteomics of the Arabidopsis plasma membrane and a new phosphorylation site database.”  Nuehse T.S.et.al.   15308754

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:	MDLNLGKCCG SRSSKKESWR SVLLLAYQSL GVVYGDLSIS PLYVFKSTFA EDIQHSETNE 
61:	EIYGVMSFVF WTLTLVPLLK YVFIVLRADD NGEGGTFALY SLICRHVKVS LLPNRQVSDE 
121:	ALSTYKLEHP PEKNHDSCVK RYLEKHKWLH TALLLLVLLG TCMVIGDGLL TPAISVFSAV 
181:	SGLELNMSKE HHQYAVIPIT CFILVCLFSL QHFGTHRVGF VFAPIVLTWL LCISGIGLYN 
241:	IIQWNPHIYK ALSPTYMFMF LRKTRVSGWM SLGGILLCIT GAEAMFADLG HFNYAAIQIA 
301:	FTFLVYPALI LAYMGQAAYL SRHHHSAHAI GFYVSVPKCL HWPVLAVAIL ASVVGSQAII 
361:	SGTFSIINQS QSLGCFPRVK VIHTSDKMHG QIYIPEINWM LMILCIAVTI GFRDVKHLGN 
421:	ASGLAVMAVM LVTTCLTSLV IVLCWHKPPI LALAFLLFFG SIELLYFSAS LTKFREGAWL 
481:	PILLSLIFMI IMFVWHYTTI KKYEFDLQNK VSLEWLLALG PSLGISRVPG IGLVFTDLTS 
541:	GIPANFSRFV TNLPAFHRVL VFVCVKSVPV PFVPPAERYL VGRVGPVDHR SYRCIVRYGY 
601:	RDVHQDVDSF ETELVSKLAD FIRYDWHKRT QQEDDNARSV QSNESSSESR LAVIGTVAYE 
661:	IEDNLQPESV SIGFSTVESM EDVIQMAEPA PTATIRRVRF AVEENSYEDE GSTSSAEADA 
721:	ELRSELRDLL AAQEAGTAFI LGHSHVKAKQ GSSVMKRLAV NFGYNFLRRN CRGPDVALKV 
781:	PPVSLLEVGM VYVV