BZR1 cDNA ORF clone, Arabidopsis thaliana(thale cress)

Sequence and analysis of chromosome 1 of the plant Arabidopsis thaliana.
Theologis A, Ecker JR, Palm CJ, Federspiel NA, Kaul S, White O, Alonso J, Altafi H, Araujo R, Bowman CL, Brooks SY, Buehler E, Chan A, Chao Q, Chen H, Cheuk RF, Chin CW, Chung MK, Conn L, Conway AB, Conway AR, Creasy TH, Dewar K, Dunn P, Etgu P, Feldblyum TV, Feng J, Fong B, Fujii CY, Gill JE, Goldsmith AD, Haas B, Hansen NF, Hughes B, Huizar L, Hunter JL, Jenkins J, Johnson-Hopson C, Khan S, Khaykin E, Kim CJ, Koo HL, Kremenetskaia I, Kurtz DB, Kwan A, Lam B, Langin-Hooper S, Lee A, Lee JM, Lenz CA, Li JH, Li Y, Lin X, Liu SX, Liu ZA, Luros JS, Maiti R, Marziali A, Militscher J, Miranda M, Nguyen M, Nierman WC, Osborne BI, Pai G, Peterson J, Pham PK, Rizzo M, Rooney T, Rowley D, Sakano H, Salzberg SL, Schwartz JR, Shinn P, Southwick AM, Sun H, Tallon LJ, Tambunga G, Toriumi MJ, Town CD, Utterback T, Van Aken S, Vaysberg M, Vysotskaia VS, Walker M, Wu D, Yu G, Fraser CM, Venter JC, Davis RW
Nature408(6814)816-20(2000 Dec)

light-regulated phosphorylation change of BZR1 requires the existence of endogenous brassinosteroid as well as functional BIN2 and protein phosphatase 2A (PP2A).
Title: Light involved regulation of BZR1 stability and phosphorylation status to coordinate plant growth in

ABI5 is a direct target gene of BZR1, and modulating the expression of ABI5 by BZR1 plays important roles in regulating the crosstalk between the brassinosteroid and abscisic acid signalling pathways.
Title: The antagonistic regulation of abscisic acid-inhibited root growth by brassinosteroids is partially mediated via direct suppression of ABSCISIC ACID INSENSITIVE 5 expression by BRASSINAZOLE RESISTANT 1.

the physical connection between brassinosteroid and light signaling pathways in regulating cotyledon opening in Arabidopsis is mediated by a direct interaction between BZR1 and HY5
Title: BZR1 Interacts with HY5 to Mediate Brassinosteroid- and Light-Regulated Cotyledon Opening in Arabidopsis in Darkness.

BZR1, a BES1 homologue, promotes cell divisions in the QC, but it suppresses columella stem cell differentiation, opposite to the action of BES1.
Title: Brassinazole resistant 1 (BZR1)-dependent brassinosteroid signalling pathway leads to ectopic activation of quiescent cell division and suppresses columella stem cell differentiation.

The amino-terminal and central parts of BES1 are responsible for its physical interaction with HSP90.3 in vitro. Additionally, BZR1 is a novel HSP90 partner aside from two BR signaling components previously identified as its clients.
Title: Heat shock protein 90 acts in brassinosteroid signaling through interaction with BES1/BZR1 transcription factor.