1.A.87.2.9
The phytosulfokine receptor, PSKR1, of 1008 aas with both a serine/threonine-protein kinase activity and a guanylate cyclase activity (Kwezi et al. 2011). In response to phytosulfokine binding, it activates a signaling cascade
involved in plant cell differentiation, organogenesis, somatic
embryogenesis, cellular proliferation and plant growth. It is also involved in
plant immunity, with antagonistic effects on bacterial and fungal
resistances (Mosher et al. 2013).
CNGC17 and AHAs form a functional
cation-translocating unit that is activated by PSKR1/BAK1 and possibly
other BAK1/RLK complexes (Ladwig et al. 2015). PSKR is a transmembrane LRR-RLK family protein with a binding site for the small signalling peptide, phytosulfokine (PSK). There are 15 members in rice (Orysa sativa), induced under different conditions in different plant tissues (Nagar et al. 2020). PSKR1 and PSYR1 mediate a signaling pathway in response to two
distinct ligands, which redundantly contribute to cellular
proliferation and plant growth (Amano et al. 2007).
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| Accession Number: | Q9ZVR7 |
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| Protein Name: | Phytosulfokine receptor 1 |
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| Length: | 1008 |
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| Molecular Weight: | 112354.00 |
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| Species: | Arabidopsis thaliana (Mouse-ear cress) [3702] |
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| Location1 / Topology2 / Orientation3: |
Cell membrane1 / Single-pass type I membrane protein2 |
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| Substrate |
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1: MRVHRFCVIV IFLTELLCFF YSSESQTTSR CHPHDLEALR DFIAHLEPKP DGWINSSSST
61: DCCNWTGITC NSNNTGRVIR LELGNKKLSG KLSESLGKLD EIRVLNLSRN FIKDSIPLSI
121: FNLKNLQTLD LSSNDLSGGI PTSINLPALQ SFDLSSNKFN GSLPSHICHN STQIRVVKLA
181: VNYFAGNFTS GFGKCVLLEH LCLGMNDLTG NIPEDLFHLK RLNLLGIQEN RLSGSLSREI
241: RNLSSLVRLD VSWNLFSGEI PDVFDELPQL KFFLGQTNGF IGGIPKSLAN SPSLNLLNLR
301: NNSLSGRLML NCTAMIALNS LDLGTNRFNG RLPENLPDCK RLKNVNLARN TFHGQVPESF
361: KNFESLSYFS LSNSSLANIS SALGILQHCK NLTTLVLTLN FHGEALPDDS SLHFEKLKVL
421: VVANCRLTGS MPRWLSSSNE LQLLDLSWNR LTGAIPSWIG DFKALFYLDL SNNSFTGEIP
481: KSLTKLESLT SRNISVNEPS PDFPFFMKRN ESARALQYNQ IFGFPPTIEL GHNNLSGPIW
541: EEFGNLKKLH VFDLKWNALS GSIPSSLSGM TSLEALDLSN NRLSGSIPVS LQQLSFLSKF
601: SVAYNNLSGV IPSGGQFQTF PNSSFESNHL CGEHRFPCSE GTESALIKRS RRSRGGDIGM
661: AIGIAFGSVF LLTLLSLIVL RARRRSGEVD PEIEESESMN RKELGEIGSK LVVLFQSNDK
721: ELSYDDLLDS TNSFDQANII GCGGFGMVYK ATLPDGKKVA IKKLSGDCGQ IEREFEAEVE
781: TLSRAQHPNL VLLRGFCFYK NDRLLIYSYM ENGSLDYWLH ERNDGPALLK WKTRLRIAQG
841: AAKGLLYLHE GCDPHILHRD IKSSNILLDE NFNSHLADFG LARLMSPYET HVSTDLVGTL
901: GYIPPEYGQA SVATYKGDVY SFGVVLLELL TDKRPVDMCK PKGCRDLISW VVKMKHESRA
961: SEVFDPLIYS KENDKEMFRV LEIACLCLSE NPKQRPTTQQ LVSWLDDV