Protein function
Encodes a subunit of the CUL4-RING E3 ubiquitin ligase.
Phenotype
Remarks: vip3 single mutant has reduced
FLC expression levels.
[Yu et al., 2010][Zhang et al., 2003] Single mutant: vip3 single mutant is early flowering under both SD and LD conditions. (
vip3 single mutant shows pleiotropic developmental defects.)
[Oh et al., 2004][Yu et al., 2010][Zhang et al., 2003] Function:Component of the PAF1 complex (PAF1C) which is involved in histone modifications such as methylation on histone H3 Lys-4 (H3K4me3) (PubMed:20363855). Involved in regulation of flowering time. Required for the expression of the flowering repressor and MADS box gene FLC (PubMed:12750345, PubMed:18725930). Required for histone H3 trimethylation on Lys-4 H3K4me3 and histone dimethylation on Lys-36 H3K36me2 at the FLC locus. Prevents trimethylation on Lys-27 H3K276me3 at the same locus (PubMed:18725930). Not required for meiotic recombination or progression (PubMed:16716192). Component of the SKI complex which is thought to be involved in exosome-mediated RNA decay and associates with transcriptionally active genes in a manner dependent on PAF1 complex (PAF1C) (PubMed:22511887). Required for proper progression of cell differentiation process (PubMed:23134555).
[Data from UniProt]
Regulators, targets and interactors
Downstream actors
Upstream actors
Protein-protein interactions
ELF8, VIP6 --
[Oh et al., 2004] --
[View TAIR record] PHP, CDC73 --
[Park et al., 2010] --
[View TAIR record]