Detailed gene information

Genes [306]




VIP3, SKI8
VERNALIZATION INDEPENDENCE 3 , ARABIDOPSIS THALIANA HOMOLOG OF YEAST SKI8
TAIR: AT4G29830
UNIPROT: Q9SZQ5
NOWOMICS: View List

Publications

Zhang H et al., 2003, Genetics
Jolivet S et al., 2006, Genes Cells
Yu X et al., 2010, Plant Physiol.
Dorcey E et al., 2012, PLoS Genet.

Appears in the following schemes

FLC regulation through protein complexes
General processes & autonomous pathway

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]



VIP3, SKI8 interaction network

Downstream and upstream flowering-related genes

Physical interactions with other flowering-related proteins