Protein: Transcription factor ILI4 (OsILI4) (Basic helix-loop-helix protein 172) (OsbHLH172) (Protein BRASSINOSTEROID UP-REGULATED 1) (OsBU1) (Protein INCREASED LEAF INCLINATION 4) (bHLH transcription factor bHLH172) (Q0DDF6)
Organism: Oryza sativa subsp. japonica (Rice)
Function: Atypical and probable non DNA-binding bHLH transcription factor that acts as a positive regulator of brassinosteroid (BR) response. Controls lamina inclination by participating in two BR signaling pathways involving BRI1 and RGA1. Involved in the RLI1-dependent modulation of leaf inclination by promoting lamina joint cell elongation, especially in response to phosphate (Pi) availability.
Subcellular location: Cytoplasm {ECO:0000305|PubMed:19648232}.
Sequence: MSSRRSSRSSVSEEEINELISKLQSLLPSSRRRGANQASTTKLLKETCSYIKSLHREVDDLSDRLSDLMAGMDHNSPGAEIIRSLLR
InterPro domains: - IPR011598: Myc-type, basic helix-loop-helix (bHLH) domain (domain) [1-54]
- IPR036638: Helix-loop-helix DNA-binding domain superfamily (homologous_superfamily) [5-77]
- IPR044293: Transcription factor PRE (family) [1-86]
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding), GO:0042802 (identical protein binding), GO:0046983 (protein dimerization activity), GO:0042803 (protein homodimerization activity)
Biological Process (BP): GO:0008150 (biological process), GO:0065007 (biological regulation), GO:0048518 (positive regulation of biological process), GO:0050896 (response to stimulus), GO:0050789 (regulation of biological process), GO:0050793 (regulation of developmental process), GO:0009628 (response to abiotic stimulus), GO:0042221 (response to chemical), GO:2000241 (regulation of reproductive process), GO:0009719 (response to endogenous stimulus), GO:0050794 (regulation of cellular process), GO:0048583 (regulation of response to stimulus), GO:0023051 (regulation of signaling), GO:0045927 (positive regulation of growth), GO:0051094 (positive regulation of developmental process), GO:0040008 (regulation of growth), GO:0048522 (positive regulation of cellular process), GO:2000024 (regulation of leaf development), GO:0048639 (positive regulation of developmental growth), GO:0080113 (regulation of seed growth), GO:0010646 (regulation of cell communication), GO:0009314 (response to radiation), GO:0001558 (regulation of cell growth), GO:0022603 (regulation of anatomical structure morphogenesis), GO:0009966 (regulation of signal transduction), GO:1901700 (response to oxygen-containing compound), GO:0030307 (positive regulation of cell growth), GO:0051128 (regulation of cellular component organization), GO:0010033 (response to organic substance), GO:0009725 (response to hormone), GO:0048638 (regulation of developmental growth), GO:0051510 (regulation of unidimensional cell growth), GO:0009416 (response to light stimulus), GO:0022604 (regulation of cell morphogenesis), GO:0033993 (response to lipid), GO:1900457 (regulation of brassinosteroid mediated signaling pathway), GO:0009741 (response to brassinosteroid), GO:0014070 (response to organic cyclic compound), GO:0009642 (response to light intensity), GO:0009646 (response to absence of light)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0005737 (cytoplasm), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0043231 (intracellular membrane-bounded organelle), GO:0005634 (nucleus)