AT4G28800 (Arabidopsis thaliana)

TF Information

Pfam ID Interpro ID Gene ID CIS-BP ID Sequence source Animal TF db
PF00010 (HLH) IPR001092 AT4G28800 T030679_2.00 Ensembl (2018-Dec-8) Link out
NCBI Gene Info:
Encodes a novel Myc-related bHLH transcription factor that has transcriptional activation activity in the dark. It is a key negative regulator of phytochrome-mediated seed germination and acts by inhibiting chlorophyll biosynthesis, light-mediated suppression of hypocotyl elongation and far-red light-mediated suppression of seed germination, and promoting negative gravitropism in hypocotyls. Light reduces this activity in a phy-dependent manner. The protein preferentially interacts with the Pfr forms of Phytochrome A (PhyA) and Phytochrome B (PhyB), is physically associated with APRR1/TOC1 and is degraded in red (R) and far-red (FR) light through the ubiquitin (ub)-26S proteasome pathway to optimize photomorphogenic development in Arabidopsis. It also negatively regulates GA3 oxidase expression.

Directly determined binding motifs

Name/Motif ID Species Forward Reverse Type/Study/Study ID SR
No direct experiments

Motifs from related TFs

Name/Motif ID Species Forward Reverse Type/Study/Study ID SR
No TFs with similar DNA binding domains

DNA Binding Domains

Protein ID Domain From To Sequence
AT4G28800.1 bHLH 257 305
AT4G28800.2 bHLH 269 317


Other bHLH family TFs
Other Arabidopsis thaliana TFs

11 Related TFs

Name Species Gene ID Motif Evidence SR
BHLH127 Arabidopsis thaliana AT4G28815 N 0.887
BHLH119 Arabidopsis thaliana AT4G28811 N 0.848
Bostr.7867s0726 Boechera stricta Bostr.7867s0726 N 0.844
Cagra.2104s0007 Capsella grandiflora Cagra.2104s0007 N 0.843
Carubv10019965m.g Capsella rubella Carubv10019965m.g N 0.843
Bostr.29223s0199 Boechera stricta Bostr.29223s0199 N 0.843
EGL3 Arabidopsis lyrata fgenesh2_kg.2__120__AT1G63650.2 N 0.843
BHLH2 Arabidopsis thaliana AT1G63650 N 0.843
Cagra.1225s0008 Capsella grandiflora Cagra.1225s0008 I 0.841
Carubv10007459m.g Capsella rubella Carubv10007459m.g I 0.841