Skip to main content

Arabidopsis DDB1-CUL4 ASSOCIATED FACTOR1 forms a nuclear E3 ubiquitin ligase with DDB1 and CUL4 that is involved in multiple plant developmental processes.

Publication ,  Journal Article
Zhang, Y; Feng, S; Chen, F; Chen, H; Wang, J; McCall, C; Xiong, Y; Deng, XW
Published in: Plant Cell
June 2008

The human DDB1-CUL4 ASSOCIATED FACTOR (DCAF) proteins have been reported to interact directly with UV-DAMAGED DNA BINDING PROTEIN1 (DDB1) through the WDxR motif in their WD40 domain and function as substrate-recognition receptors for CULLIN4-based E3 ubiquitin ligases. Here, we identified and characterized a homolog of human DCAF1/VprBP in Arabidopsis thaliana. Yeast two-hybrid analysis demonstrated the physical interaction between DCAF1 and DDB1 from Arabidopsis, which is likely mediated via the WD40 domain of DCAF1 that contains two WDxR motifs. Moreover, coimmunoprecipitation assays showed that DCAF1 associates with DDB1, RELATED TO UBIQUITIN-modified CUL4, and the COP9 signalosome in vivo but not with CULLIN-ASSOCIATED and NEDDYLATION-DISSOCIATED1, CONSTITUTIVE PHOTOMORPHOGENIC1 (COP1), or the COP10-DET1-DDB1 complex, supporting the existence of a distinct Arabidopsis CUL4 E3 ubiquitin ligase, the CUL4-DDB1-DCAF1 complex. Transient expression of fluorescently tagged DCAF1, DDB1, and CUL4 in onion epidermal cells showed their colocalization in the nucleus, consistent with the notion that the CUL4-DDB1-DCAF1 complex functions as a nuclear E3 ubiquitin ligase. Genetic and phenotypic analysis of two T-DNA insertion mutants of DCAF1 showed that embryonic development of the dcaf1 homozygote is arrested at the globular stage, indicating that DCAF1 is essential for plant embryogenesis. Reducing the levels of DCAF1 leads to diverse developmental defects, implying that DCAF1 might be involved in multiple developmental pathways.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Plant Cell

DOI

ISSN

1040-4651

Publication Date

June 2008

Volume

20

Issue

6

Start / End Page

1437 / 1455

Location

England

Related Subject Headings

  • Ubiquitin-Protein Ligases
  • Ubiquitin-Conjugating Enzymes
  • Sequence Homology, Amino Acid
  • Protein Binding
  • Plants, Genetically Modified
  • Plant Biology & Botany
  • Onions
  • Nuclear Proteins
  • Mutagenesis, Insertional
  • Molecular Sequence Data
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Zhang, Y., Feng, S., Chen, F., Chen, H., Wang, J., McCall, C., … Deng, X. W. (2008). Arabidopsis DDB1-CUL4 ASSOCIATED FACTOR1 forms a nuclear E3 ubiquitin ligase with DDB1 and CUL4 that is involved in multiple plant developmental processes. Plant Cell, 20(6), 1437–1455. https://doi.org/10.1105/tpc.108.058891
Zhang, Yu, Suhua Feng, Fangfang Chen, Haodong Chen, Jia Wang, Chad McCall, Yue Xiong, and Xing Wang Deng. “Arabidopsis DDB1-CUL4 ASSOCIATED FACTOR1 forms a nuclear E3 ubiquitin ligase with DDB1 and CUL4 that is involved in multiple plant developmental processes.Plant Cell 20, no. 6 (June 2008): 1437–55. https://doi.org/10.1105/tpc.108.058891.
Zhang, Yu, et al. “Arabidopsis DDB1-CUL4 ASSOCIATED FACTOR1 forms a nuclear E3 ubiquitin ligase with DDB1 and CUL4 that is involved in multiple plant developmental processes.Plant Cell, vol. 20, no. 6, June 2008, pp. 1437–55. Pubmed, doi:10.1105/tpc.108.058891.
Zhang Y, Feng S, Chen F, Chen H, Wang J, McCall C, Xiong Y, Deng XW. Arabidopsis DDB1-CUL4 ASSOCIATED FACTOR1 forms a nuclear E3 ubiquitin ligase with DDB1 and CUL4 that is involved in multiple plant developmental processes. Plant Cell. 2008 Jun;20(6):1437–1455.

Published In

Plant Cell

DOI

ISSN

1040-4651

Publication Date

June 2008

Volume

20

Issue

6

Start / End Page

1437 / 1455

Location

England

Related Subject Headings

  • Ubiquitin-Protein Ligases
  • Ubiquitin-Conjugating Enzymes
  • Sequence Homology, Amino Acid
  • Protein Binding
  • Plants, Genetically Modified
  • Plant Biology & Botany
  • Onions
  • Nuclear Proteins
  • Mutagenesis, Insertional
  • Molecular Sequence Data