| Alias |
AtLEC1, NF-YB9, EMB212, LEC1 |
| TF Classification |
|
| TAIR short description |
NUCLEAR FACTOR Y, SUBUNIT B9, LEAFY COTYLEDON 1, EMBRYO DEFECTIVE 212, Histone superfamily protein (.1) |
| TAIR annotation |
Transcriptional activator of genes required for both embryo maturation and cellular differentiation. Sequence is similar to HAP3 subunit of the CCAAT-box binding factor. HAP3 subunit is divided into three domains: an amino-terminal A domain, a central B domain, and a carboxyl-terminal C domain. LEC1 shared high similarity with other HAP3 homologs only in central, B domain. LEC1 is required for the specification of cotyledon identity and the completion of embryo maturation. It was sufficient to induce embryogenic programs in vegetative cells, suggesting that LEC1 is a major embryonic regulator that mediates the switch between embryo and vegetative development. Mutants are desiccation intolerant, have trichomes on cotyledons and exhibit precocious meristem activation. Levels of the ABI3 and FUS3 transcripts were significantly reduced in developing siliques of the lec1-1 mutants, indicating that LEC1 down-regulates FUS3 and ABI3.When LEC1 is overexpressed from an inducible promoter, the expression of numerous genes involved in fatty acid biosynthesis is increased suggesting a role in positive regulation of FA biosynthesis. (.1) |
| Gene model |
|
| Entry clone (w/o stop) |
IE_02H11 |
| External link |
|
| Gene Ontology (GO) |
| (P) 10262: developmental processes |
->somatic embryogenesis |
| (F) 3700: transcription factor activity |
->transcription factor activity, sequence-specific DNA binding |
| (F) 43565: DNA or RNA binding |
->sequence-specific DNA binding |
| (P) 45723: other metabolic processes |
->positive regulation of fatty acid biosynthetic process |
| (P) 45893: transcription,DNA-dependent |
->positive regulation of transcription, DNA-templated |
| (F) 46982: protein binding |
->protein heterodimerization activity |
| (F) 5515: protein binding |
->protein binding |
| (C) 5634: nucleus |
->nucleus |
| (P) 6351: transcription,DNA-dependent |
->transcription, DNA-templated |
| (P) 9738: signal transduction |
->abscisic acid-activated signaling pathway |
| (P) 9785: signal transduction |
->blue light signaling pathway |
| (P) 9793: developmental processes |
->embryo development ending in seed dormancy |
|
| miRNA/tasiRNA |
|
| Orthologs |
|
Type |
| Ia |
Ib |
II |
III |
Total |
| poplar |
|
|
1 |
1 |
2 |
| soybean |
|
|
1 |
3 |
4 |
| rice |
|
|
1 |
|
1 |
| sorghum |
|
|
1 |
|
1 |
| physcomitrella |
|
|
|
|
|
| Total |
|
|
4 |
4 |
8 |
|
| Repression motif |
|
Repression motif
in putative orthologs |
|
| Status |
| Plasmid construction | -> done |
| Plasmid construction | -> done |
| Transformed | -> done |
| T1 seed harvested | -> done |
| T2 seed harvested | -> done |
|
| CRES-T phenotype from individual project
|
|
| CRES-T phenotype from publication |
|
| CRES-T phenotype from bulk project |
|
Phenotype in ornamental plants
|
|
| Comment |
|
