SNRK2.3 cDNA ORF clone, Arabidopsis thaliana(thale cress)

Sequence and analysis of chromosome 5 of the plant Arabidopsis thaliana.
Tabata S, Kaneko T, Nakamura Y, Kotani H, Kato T, Asamizu E, Miyajima N, Sasamoto S, Kimura T, Hosouchi T, Kawashima K, Kohara M, Matsumoto M, Matsuno A, Muraki A, Nakayama S, Nakazaki N, Naruo K, Okumura S, Shinpo S, Takeuchi C, Wada T, Watanabe A, Yamada M, Yasuda M, Sato S, de la Bastide M, Huang E, Spiegel L, Gnoj L, O'Shaughnessy A, Preston R, Habermann K, Murray J, Johnson D, Rohlfing T, Nelson J, Stoneking T, Pepin K, Spieth J, Sekhon M, Armstrong J, Becker M, Belter E, Cordum H, Cordes M, Courtney L, Courtney W, Dante M, Du H, Edwards J, Fryman J, Haakensen B, Lamar E, Latreille P, Leonard S, Meyer R, Mulvaney E, Ozersky P, Riley A, Strowmatt C, Wagner-McPherson C, Wollam A, Yoakum M, Bell M, Dedhia N, Parnell L, Shah R, Rodriguez M, See LH, Vil D, Baker J, Kirchoff K, Toth K, King L, Bahret A, Miller B, Marra M, Martienssen R, McCombie WR, Wilson RK, Murphy G, Bancroft I, Volckaert G, Wambutt R, D?sterh?ft A, Stiekema W, Pohl T, Entian KD, Terryn N, Hartley N, Bent E, Johnson S, Langham SA, McCullagh B, Robben J, Grymonprez B, Zimmermann W, Ramsperger U, Wedler H, Balke K, Wedler E, Peters S, van Staveren M, Dirkse W, Mooijman P, Lankhorst RK, Weitzenegger T, Bothe G, Rose M, Hauf J, Berneiser S, Hempel S, Feldpausch M, Lamberth S, Villarroel R, Gielen J, Ardiles W, Bents O, Lemcke K, Kolesov G, Mayer K, Rudd S, Schoof H, Schueller C, Zaccaria P, Mewes HW, Bevan M, Fransz P, , ,
Nature408(6814)823-6(2000 Dec)

We show that SnRK2.3 is degradated by 26S proteasome system and abscisic acid (ABA) promotes its degradation. AtPP2-B11 was induced by ABA; knockdown of AtPP2-B11 expression markedly increased ABA sensitivity of plants during seed germination and postgerminative development. These results reveal a novel mechanism through which AtPP2-B11 degrades SnRK2.3 to attenuate ABA signaling and the abiotic stress response.
Title: SCFAtPP2-B11 modulates ABA signaling by facilitating SnRK2.3 degradation in Arabidopsis thaliana.

Nitric oxide negatively regulates abscissic acid signaling in germination and early seedling growth through S-nitrosylation of SnRK2.2 and SnRK2.3.
Title: Nitric oxide suppresses the inhibitory effect of abscisic acid on seed germination by S-nitrosylation of SnRK2 proteins.

Data show that the decuple mutant snrk2.1/2/3/4/5/6/7/8/9/10 grew poorly under hyperosmotic stress conditions but was similar to the wild type in culture media in the absence of osmotic stress.
Title: Arabidopsis decuple mutant reveals the importance of SnRK2 kinases in osmotic stress responses in vivo.

SRK2D, SRK2E and SRK2I protein kinases involved in ABA signaling are essential for the control of seed development and dormancy.
Title: Three Arabidopsis SnRK2 protein kinases, SRK2D/SnRK2.2, SRK2E/SnRK2.6/OST1 and SRK2I/SnRK2.3, involved in ABA signaling are essential for the control of seed development and dormancy.

Results demonstrate that SnRK2.2 and SnRK2.3 are redundant but key protein kinases that mediate a major part of abscisic acid signaling in Arabidopsis.
Title: Identification of two protein kinases required for abscisic acid regulation of seed germination, root growth, and gene expression in Arabidopsis.