Phytosulfokine receptor 1 - Q9ZVR7 (PSKR1_ARATH)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Phytosulfokine receptor with both a serine/threonine-protein kinase activity and a guanylate cyclase activity (PubMed:21504901). Regulates, in response to phytosulfokine binding, a signaling cascade involved in plant cell differentiation, organogenesis, somatic embryogenesis, cellular proliferation and plant growth. Involved in plant immunity, with antagonistic effects on bacterial and fungal resistances (PubMed:23062058). Not involved in PSY perception. CNGC17 and AHAs form a functional cation-translocating unit that is activated by PSKR1/BAK1 and possibly other BAK1/RLK complexes (PubMed:26071421). UniProt
Catalytic Activity
GTP = 3',5'-cyclic GMP + diphosphate UniProt
Pathway Maps
      ESCHER  BiGG
Subunit Structure
Homo- and heterodimers with PSY1R (PubMed:25267325). Heterodimers with the somatic embryogenesis receptor-like kinases (SERKs) (PubMed:26308901). PSK is not directly involved in PSKR-SERK interaction but stabilizes PSKR island domain for recruitment of a SERK (PubMed:26308901). Part of a functional complex containing PSKR1, BAK1, CNGC17, and AHA (PubMed:26071421). Interacts with AHA1, AHA2, and BAK1, but not with CNGC17 or BRI1 (PubMed:26071421). UniProt
  • Organism: Mouse-ear cress
  • Length:
  • UniProt
  • Other Gene names: PSKR1, PSKR, At2g02220, F5O4.1
This protein in other organisms (by gene name):
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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Validation Track

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Data in red indicates combined ranges of Homology Models from the SWISS-MODEL Repository  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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