Gene Symbol: STO
Description: B-box zinc finger family protein
Alias: B-box domain protein 24, BBX24, SALT TOLERANCE, T21E18.9, T21E18_9, B-box zinc finger family protein
Species: thale cress

Top Publications

  1. Lippuner V, Cyert M, Gasser C. Two classes of plant cDNA clones differentially complement yeast calcineurin mutants and increase salt tolerance of wild-type yeast. J Biol Chem. 1996;271:12859-66 pubmed
    ..cDNA clones corresponding to two different sequences, designated STO (salt tolerance) and STZ (salt tolerance zinc finger), were found to increased tolerance of calcineurin mutants and of wild-..
  2. Belles Boix E, Babiychuk E, Van Montagu M, Inze D, Kushnir S. CEO1, a new protein from Arabidopsis thaliana, protects yeast against oxidative damage. FEBS Lett. 2000;482:19-24 pubmed
    ..By using the yeast two-hybrid system, proteins that specifically interact with CEO1 in yeast were identified, and putative DNA-binding proteins were consistently recovered. ..
  3. Indorf M, Cordero J, Neuhaus G, Rodriguez Franco M. Salt tolerance (STO), a stress-related protein, has a major role in light signalling. Plant J. 2007;51:563-74 pubmed
    The salt tolerance protein (STO) of Arabidopsis was identified as a protein conferring salt tolerance to yeast cells...
  4. Holm M, Hardtke C, Gaudet R, Deng X. Identification of a structural motif that confers specific interaction with the WD40 repeat domain of Arabidopsis COP1. EMBO J. 2001;20:118-27 pubmed
  5. Jiang L, Wang Y, Li Q, Björn L, He J, Li S. Arabidopsis STO/BBX24 negatively regulates UV-B signaling by interacting with COP1 and repressing HY5 transcriptional activity. Cell Res. 2012;22:1046-57 pubmed publisher
    ..Here we report that Arabidopsis SALT TOLERANCE (STO/BBX24), a known regulator for light signaling in plants, defines a new signaling component in UV-B-..
  6. Yan H, Marquardt K, Indorf M, Jutt D, Kircher S, Neuhaus G, et al. Nuclear localization and interaction with COP1 are required for STO/BBX24 function during photomorphogenesis. Plant Physiol. 2011;156:1772-82 pubmed publisher
    Arabidopsis (Arabidopsis thaliana) SALT TOLERANCE/B-BOX ZINC FINGER PROTEIN24 (STO/BBX24) is a negative regulator of the light signal transduction that localizes to the nucleus of plant cells and interacts with CONSTITUTIVE ..
  7. Gangappa S, Holm M, Botto J. Molecular interactions of BBX24 and BBX25 with HYH, HY5 HOMOLOG, to modulate Arabidopsis seedling development. Plant Signal Behav. 2013;8: pubmed publisher
    b>BBX24 and BBX25 are two important transcriptional regulators, which regulate seedling photomorphogenesis in Arabidopsis...
  8. Li F, Sun J, Wang D, Bai S, Clarke A, Holm M. The B-box family gene STO (BBX24) in Arabidopsis thaliana regulates flowering time in different pathways. PLoS ONE. 2014;9:e87544 pubmed publisher
    ..between the photoperiod/circadian clock gene and FRIGIDA/FLC by characterizing the function of the B-box STO gene family. STO has two B-box Zn-finger domains but lacks the CCT domain...
  9. Crocco C, Locascio A, Escudero C, Alabadí D, Blázquez M, Botto J. The transcriptional regulator BBX24 impairs DELLA activity to promote shade avoidance in Arabidopsis thaliana. Nat Commun. 2015;6:6202 pubmed publisher
    ..of PIF4, a key transcription factor in the shade signalling network, is modulated by the interplay between the BBX24 transcriptional regulator and DELLA proteins, which are negative regulators of the gibberellin (GA) signalling ..

More Information


  1. Gangappa S, Crocco C, Johansson H, Datta S, Hettiarachchi C, Holm M, et al. The Arabidopsis B-BOX protein BBX25 interacts with HY5, negatively regulating BBX22 expression to suppress seedling photomorphogenesis. Plant Cell. 2013;25:1243-57 pubmed publisher
    ..Here, we identified a B-BOX (BBX)-containing protein, BBX25/SALT TOLERANCE HOMOLOG, as an interacting partner of HY5, which has been previously found to physically interact with ..