Gene Details:

• MSU gene ID: LOC_Os03g03920
• RAPdb gene ID: Os03g0131300
• Gene Symbol: OsDSK2a
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• The Ubiquitin-Binding Protein OsDSK2a Mediates Seedling Growth and Salt Responses by Regulating Gibberellin Metabolism in Rice.
• Here, we demonstrate that the novel UBL-UBA protein OsDSK2a (DOMINANT SUPPRESSOR of KAR2) mediates seedling growth and salt responses in rice (Oryza sativa).
• Bioactive GA levels were reduced and plant growth was retarded in the OsDSK2a mutant.
• Thus, OsDSK2a and EUI play opposite roles in regulating plant growth under salt stress by affecting GA metabolism.
• Downregulation of the ubiquitin-binding receptor OsDSK2a increases EUI accumulation, which promotes GA metabolism and reduces plant growth under salt stress.
• Through analysis of OsDSK2a, a mutant with retarded seedling growth, as well as in vitro and in vivo assays, we demonstrated that OsDSK2a combines with polyubiquitin chains and interacts with the gibberellin (GA)-deactivating enzyme ELONGATED UPPERMOST INTERNODE (EUI), resulting in its degradation through the ubiquitin-proteasome system.
• OsDSK2a levels decreased in plant under salt stress.
• Moreover, EUI accumulated under salt stress more rapidly in OsDSK2a than in wild-type plants.

Function-related keywords:

• growth ,  seedling ,  salt ,  gibberellin ,  salt-stress ,  stress ,  plant-growth ,  ga ,  Gibberellin ,  GA

Literature:

• The Ubiquitin-Binding Protein OsDSK2a Mediates Seedling Growth and Salt Responses by Regulating Gibberellin Metabolism in Rice .  DOI:  10.1105/tpc.19.00593 ;  PMID:  31826965

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: