Function
Receptor kinase acting as an early component in abscisic acid (ABA) signaling (PubMed:22730405). Required for darkness, ABA, high CO(2) and hydrogen peroxide (H(2)O(2)) induction of S-type anion currents in guard cells leading to stomatal closure, possibly via the phosphorylation and activation of the anion channel SLAC1 and as a scaffolding component (PubMed:22730405, PubMed:27694184, PubMed:30361234). Seems to act in parallel with SRK2E/OST1 in the ABA signaling pathway which regulates stomatal movement (PubMed:22730405). Binds ATP (PubMed:30361234). Involved in the local and/or systemic stomatal responses (e.g. stomatal closure) to light stress (PubMed:29463779).
Sequence
MNLSRILLLSMFFLSAMGQLPSQDIMALLEFKKGIKHDPTGFVLNSWNDESIDFNGCPSSWNGIVCNGGNVAGVVLDNLGLTADADFSLFSNLTKLVKLSMSNNSLSGVLPNDLGSFKSLQFLDLSDNLFSSSLPKEIGRSVSLRNLSLSGNNFSGEIPESMGGLISLQSLDMSSNSLSGPLPKSLTRLNDLLYLNLSSNGFTGKMPRGFELISSLEVLDLHGNSIDGNLDGEFFLLTNASYVDISGNRLVTTSGKLLPGVSESIKHLNLSHNQLEGSLTSGFQLFQNLKVLDLSYNMLSGELPGFNYVYDLEVLKLSNNRFSGSLPNNLLKGDSLLLTTLDLSGNNLSGPVSSIMSTTLHTLDLSSNSLTGELPLLTGGCVLLDLSNNQFEGNLTRWSKWENIEYLDLSQNHFTGSFPDATPQLLRANHLNLSYNKLTGSLPERIPTHYPKLRVLDISSNSLEGPIPGALLSMPTLEEIHLQNNGMTGNIGPLPSSGSRIRLLDLSHNRFDGDLPGVFGSLTNLQVLNLAANNLSGSLPSSMNDIVSLSSLDVSQNHFTGPLPSNLSSNIMAFNVSYNDLSGTVPENLKNFPPPSFYPGNSKLVLPAGSPGSSASEASKNKSTNKLVKVVIIVSCAVALIILILVAILLFCICKSRRREERSITGKETNRRAQTIPSGSGGGMVVSAEDLVASRKGSSSEILSPDEKLAVATGFSPSKTSNLSWSPGSGDSFPADQQLARLDVRSPDRLVGELHFLDDSIKLTPEELSRAPAEVLGRSSHGTSYRATLDNGVFLTVKWLREGVAKQRKEFAKEVKKFSNIRHPNVVTLRGYYWGPTQHEKLILSDYISPGSLASFLYDRPGRKGPPLAWTQRLKIAVDVARGLNYLHFDRAVPHGNLKATNILLDGAELNARVADYCLHRLMTQAGTVEQILDAGILGYRAPELAASRKPLPSFKSDVYAFGVILLEILTGRCAGDVITGEQEGVDLTDWVRLRVAEGRGAECFDSVLTQEMGSDPVTEKGMKEVLGIALRCIRSVSERPGIKTIYEDLSSI