NCBI Accession #
NP_180595.1
NCBI GenBank Nucleotide #
NM_128589.2
NCBI Official Full Name
SOS3-interacting protein 4
NCBI Official Symbol
SIP4
NCBI Official Synonym Symbols
CBL-INTERACTING PROTEIN KINASE 11; CIPK11; PKS5; PROTEIN KINASE SOS2-LIKE 5; SNF1-RELATED PROTEIN KINASE 3.22; SNRK3.22; SOS3-interacting protein 4; T9D9.17; T9D9_17
NCBI Protein Information
SOS3-interacting protein 4
NCBI Summary
Encodes a SOS2-like protein kinase that is a member of the CBL-interacting protein kinase family.Loss of function mutants show a decrease in sensitivity to high pH.Phosphorylates AHA2, a plasma membrane H+ ATPase.This phosphorylation appears to regulate the activity of the proton transporter.
UniProt Synonym Gene Names
PKS5; SIP4; SnRK3.22
UniProt Protein Name
CBL-interacting serine/threonine-protein kinase 11
UniProt Synonym Protein Names
SNF1-related kinase 3.22; SOS2-like protein kinase PKS5; SOS3-interacting protein 4
UniProt Primary Accession #
O22932
UniProt Secondary Accession #
Q7FYB7; Q944I6
UniProt Related Accession #
O22932
UniProt Comments
CIPK serine-threonine protein kinases interact with CBL proteins. Binding of a CBL protein to the regulatory NAF domain of CIPK protein lead to the activation of the kinase in a calcium-dependent manner. Acts as a negative regulator of the plasma membrane proton pump AHA2 by preventing its interaction with 14-3-3 protein.