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GH3.3 GH3.3 BRI1 BRI1 EXPA8 EXPA8 IAA19 IAA19 CYP90B1 CYP90B1 PIF3 PIF3 HAT2 HAT2 ARF7 ARF7 ARF5 ARF5 ACS5 ACS5 IAA3 IAA3 ASK7 ASK7 SAUR15 SAUR15 CYS3 CYS3 SAUR26 SAUR26 PIF5 PIF5 PRE6 PRE6 BEE1 BEE1 PIF1 PIF1 ARF1-2 ARF1-2 SMO1-1 SMO1-1 BZR1 BZR1 PIF4 PIF4 BEE2 BEE2 ARF2 ARF2 AUX1 AUX1 SAUR66 SAUR66 HFR1 HFR1 ARF8 ARF8 SAUR19 SAUR19 UBC30 UBC30 PRE1 PRE1 BIM1 BIM1 PRE5 PRE5 BZR2 BZR2 GAI GAI PRE2 PRE2 F-ATMBP F-ATMBP PAR1 PAR1 IBH1 IBH1 RGA RGA SAUR25 SAUR25 HBI1 HBI1 ARF6 ARF6
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GH3.3Indole-3-acetic acid-amido synthetase GH3.3; Catalyzes the synthesis of indole-3-acetic acid (IAA)-amino acid conjugates, providing a mechanism for the plant to cope with the presence of excess auxin. Strongly reactive with Glu, Gln, Trp, Asp, Ala, Leu, Phe, Gly, Tyr, Met, Ile and Val. Little or no product formation with His, Ser, Thr, Arg, Lys, or Cys. Also active on pyruvic and butyric acid analogs of IAA, PAA and the synthetic auxin naphthaleneacetic acid (NAA). The two chlorinated synthetic auxin herbicides 2,4-D and 3,6-dichloro-o-anisic acid (dicamba) cannot be used as substrates [...] (595 aa)
BRI1Protein BRASSINOSTEROID INSENSITIVE 1; Receptor with a dual specificity kinase activity acting on both serine/threonine- and tyrosine-containing substrates. Regulates, in response to brassinosteroid binding, a signaling cascade involved in plant development, including expression of light- and stress-regulated genes, promotion of cell elongation, normal leaf and chloroplast senescence, and flowering. Binds brassinolide, and less effectively castasterone, but not 2,3,22,23-O-tetramethylbrassinolide or ecdysone. May be involved in a feedback regulation of brassinosteroid biosynthesis. Pho [...] (1196 aa)
EXPA8Expansin-A8; Causes loosening and extension of plant cell walls by disrupting non-covalent bonding between cellulose microfibrils and matrix glucans. No enzymatic activity has been found (By similarity). Belongs to the expansin family. Expansin A subfamily. (253 aa)
IAA19Auxin-responsive protein IAA19; Aux/IAA proteins are short-lived transcriptional factors that function as repressors of early auxin response genes at low auxin concentrations. Repression is thought to result from the interaction with auxin response factors (ARFs), proteins that bind to the auxin- responsive promoter element (AuxRE). Formation of heterodimers with ARF proteins may alter their ability to modulate early auxin response genes expression. (197 aa)
CYP90B1Cytochrome P450 90B1; Catalyzes the C22-alpha-hydroxylation step in brassinosteroids biosynthesis. Converts campestanol to 6- deoxocathasterone and 6-oxocampestanol to cathasterone. (513 aa)
PIF3Transcription factor PIF3; Transcription factor acting positively in the phytochrome signaling pathway. Activates transcription by binding to the G box (5'- CACGTG-3'). (524 aa)
HAT2Homeobox-leucine zipper protein HAT2; Probable transcription factor that plays a role in auxin- mediated morphogenesis. Negatively regulates lateral root elongation. (283 aa)
ARF7Auxin response factor 7; Auxin response factors (ARFs) are transcriptional factors that bind specifically to the DNA sequence 5'-TGTCTC-3' found in the auxin-responsive promoter elements (AuxREs). Act as a transcriptional activator of several tropic stimulus-induced (TSI) genes, including SAUR50. Formation of heterodimers with Aux/IAA proteins may alter their ability to modulate early auxin response genes expression. Required for differential growth responses of aerial tissues. Involved in ethylene responses. Regulates lateral root formation through direct regulation of LBD16 and/or LB [...] (1164 aa)
ARF5Auxin response factor 5; Auxin response factors (ARFs) are transcriptional factors that bind specifically to the DNA sequence 5'-TGTCTC-3' found in the auxin-responsive promoter elements (AuxREs). Seems to act as transcriptional activator. Formation of heterodimers with Aux/IAA proteins may alter their ability to modulate early auxin response genes expression. Mediates embryo axis formation and vascular tissues differentiation. Functionally redundant with ARF7. May be necessary to counteract AMP1 activity. (902 aa)
ACS51-aminocyclopropane-1-carboxylate synthase 5; 1-aminocyclopropane-1-carboxylate synthase (ACS) enzymes catalyze the conversion of S-adenosyl-L-methionine (SAM) into 1- aminocyclopropane-1-carboxylate (ACC), a direct precursor of ethylene. (470 aa)
IAA3Auxin-responsive protein IAA3; Aux/IAA proteins are short-lived transcriptional factors that function as repressors of early auxin response genes at low auxin concentrations. Repression is thought to result from the interaction with auxin response factors (ARFs), proteins that bind to the auxin- responsive promoter element (AuxRE). Plays a central role in auxin regulation of root growth, in gravitropism, and in lateral root formation. Regulated by an auxin-induced protein turnover. Formation of heterodimers with ARF proteins may alter their ability to modulate early auxin response gene [...] (189 aa)
ASK7Shaggy-related protein kinase eta; Negative regulator in brassinosteroid signal transduction pathway important for plant growth. May be also involved in auxin signaling pathway. Phosphorylates and increases the degradation of BZR1 and BZR2/BES1 by the proteasome. Phosphorylates BHLH150, beet curly top virus C4 and tomato golden mosaic virus AC4 on threonine and serine residues. Upon brassinosteroid signaling, inhibits stomatal development by phosphorylating and inhibiting the MAPKK kinase YDA and the MAPK kinases MKK4 and MKK5. Phosphorylates BSK1, BSK3, BSK5, BSK6, BSK8 AND BSK11 in v [...] (380 aa)
SAUR15Auxin-responsive protein SAUR15; Functions as a positive effector of cell expansion through modulation of auxin transport. (89 aa)
CYS3Cysteine proteinase inhibitor 3; Specific inhibitor of cysteine proteinases. Probably involved in the regulation of endogenous processes and in defense against pests and pathogens (By similarity); Belongs to the cystatin family. Phytocystatin subfamily. (125 aa)
SAUR26SAUR-like auxin-responsive protein family. (93 aa)
PIF5Transcription factor PIF5; Transcription factor acting negatively in the phytochrome B signaling pathway to promote the shade-avoidance response. Regulates PHYB abundance at the post-transcriptional level, possibly via the ubiquitin-proteasome pathway. Promotes ethylene activity in the dark. May regulate the expression of a subset of genes by binding to the G- box motif. Might be involved in the integration of light-signals to control both circadian and photomorphogenic processes. Activated by CRY1 and CRY2 in response to low blue light (LBL) by direct binding at chromatin on E-box var [...] (444 aa)
PRE6Transcription factor PRE6; Atypical and probable non DNA-binding bHLH transcription factor that regulates light-mediated responses in day light conditions by binding and inhibiting the activity of the bHLH transcription factor HFR1, a critical regulator of light signaling and shade avoidance. Forms non-functional heterodimers with HFR1, causing liberation and activation of PIF4 from the transcriptionally inactive HFR1-PIF4 complex. (94 aa)
BEE1Transcription factor BEE 1; Positive regulator of brassinosteroid signaling. (260 aa)
PIF1Transcription factor PIF1; Transcription activator. Regulates negatively chlorophyll biosynthesis and seed germination in the dark, and lightinduced degradation of PIF1 relieves this negative regulation to promote photomorphogenesis. Binds to the G-box motif (5'-CACGTG-3') found in many light-regulated promoters. Promotes the expression of SOM, and thus modulates responses to abscisic acid (ABA) and gibberellic acid (GA). (478 aa)
ARF1-2Auxin response factor 1; Auxin response factors (ARFs) are transcriptional factors that bind specifically to the DNA sequence 5'-TGTCTC-3' found in the auxin-responsive promoter elements (AuxREs). Seems to act as transcriptional repressor. Formation of heterodimers with Aux/IAA proteins may alter their ability to modulate early auxin response genes expression. Promotes flowering, stamen development, floral organ abscission and fruit dehiscence. Acts as repressor of IAA2, IAA3 and IAA7. (665 aa)
SMO1-1Methylsterol monooxygenase 1-1; Non-heme iron oxygenase involved in sterols biosynthesis. 4,4-dimethyl-9-beta,19-cyclopropylsterols such as 24- methylenecycloartanol are the preferred substrates. Belongs to the sterol desaturase family. (298 aa)
BZR1Protein BRASSINAZOLE-RESISTANT 1; Transcriptional repressor that binds to the brassinosteroid (BR) response element (BRRE) 5'-CGTG(T/C)G-3' in gene promoter. Regulates positively the brassinosteroid-signaling pathway. Mediates downstream growth responses and negative feedback regulation of brassinosteroid biosynthesis. Promotes growth. Modulates ovule initiation and development by monitoring the expression of genes related to ovule development (e.g. HLL, ANT, and AP2). (336 aa)
PIF4Transcription factor PIF4; Transcription factor acting negatively in the phytochrome B signaling pathway. May regulate the expression of a subset of genes involved in cell expansion by binding to the G-box motif (By similarity). Activated by CRY1 and CRY2 in response to low blue light (LBL) by direct binding at chromatin on E-box variant 5'-CA[CT]GTG-3' to stimulate specific gene expression to adapt global physiology (e.g. hypocotyl elongation in low blue light). Belongs to the bHLH protein family. (430 aa)
BEE2Transcription factor BEE 2; Positive regulator of brassinosteroid signaling. (304 aa)
ARF2Auxin response factor 2; Auxin response factors (ARFs) are transcriptional factors that bind specifically to the DNA sequence 5'-TGTCTC-3' found in the auxin-responsive promoter elements (AuxREs). Could act as transcriptional activator or repressor. Formation of heterodimers with Aux/IAA proteins may alter their ability to modulate early auxin response genes expression. Promotes flowering, stamen development, floral organ abscission and fruit dehiscence. Functions independently of ethylene and cytokinin response pathways. May act as a repressor of cell division and organ growth. (859 aa)
AUX1Auxin transporter protein 1; Carrier protein involved in proton-driven auxin influx. Mediates the formation of auxin gradient from developing leaves (site of auxin biosynthesis) to tips by contributing to the loading of auxin in vascular tissues and facilitating acropetal (base to tip) auxin transport within inner tissues of the root apex, and basipetal (tip to base) auxin transport within outer tissues of the root apex. Unloads auxin from the mature phloem to deliver the hormone to the root meristem via the protophloem cell files. Coordinated subcellular localization of AUX1 is regula [...] (485 aa)
SAUR66Auxin-responsive protein SAUR66; May promote auxin-stimulated organ elongation, such as hypocotyls, stamen filaments and petals. Belongs to the ARG7 family. (135 aa)
HFR1Transcription factor HFR1; Atypical bHLH transcription factor that regulates photomorphogenesis through modulation of phytochrome (e.g. PHYA) and cryptochrome signalings (Ref.4,. Suppresses the transcriptional regulation activity of PIF4 by forming non-DNA-binding heterodimer. (292 aa)
ARF8Auxin response factor 8; Auxin response factors (ARFs) are transcriptional factors that bind specifically to the DNA sequence 5'-TGTCTC-3' found in the auxin-responsive promoter elements (AuxREs). Seems to act as transcriptional activator. Formation of heterodimers with Aux/IAA proteins may alter their ability to modulate early auxin response genes expression. Regulates both stamen and gynoecium maturation. Promotes jasmonic acid production. Partially redundant with ARF6. Involved in fruit initiation. Acts as an inhibitor to stop further carpel development in the absence of fertilizati [...] (811 aa)
SAUR19Auxin-responsive protein SAUR19; Functions as positive effectors of cell expansion through modulation of auxin transport; Belongs to the ARG7 family. (90 aa)
UBC30Ubiquitin-conjugating enzyme E2 30; Accepts the ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. (148 aa)
PRE1Transcription factor PRE1; Atypical and probable non DNA-binding bHLH transcription factor that integrates multiple signaling pathways to regulate cell elongation and plant development. Binds IBH1, forming a pair of antagonistic bHLH transcription factors that function downstream of BZR1 to mediate brassinosteroid regulation of cell elongation. Regulates light responses by binding and inhibiting the activity of the bHLH transcription factor HFR1, a critical regulator of light signaling and shade avoidance. May have a regulatory role in various aspects of gibberellin-dependent growth an [...] (92 aa)
BIM1Transcription factor BIM1; Positive brassinosteroid-signaling protein. Transcription factor that bind specifically to the DNA sequence 5'-CANNTG-3'(E box). Can bind individually to the promoter as a homodimer or synergistically as a heterodimer with BZR2/BES1. Does not itself activate transcription but enhances BZR2/BES1-mediated target gene activation. (529 aa)
PRE5Transcription factor PRE5; Atypical and probable non DNA-binding bHLH transcription factor that integrates multiple signaling pathways to regulate cell elongation and plant development. May have a regulatory role in various aspects of gibberellin-dependent growth and development. (92 aa)
BZR2Protein BRASSINAZOLE-RESISTANT 2; Positive regulator of brassinosteroid (BR) signaling. Transcription factor that activates target gene expression by binding specifically to the DNA sequence 5'-CANNTG-3'(E box) through its N- terminal domain. Can bind individually to the promoter as a homodimer or synergistically as a heterodimer with BIM1, BIM2 or BIM3. The C- terminal domain is probably involved in transcriptional activation. Recruits the transcription elongation factor IWS1 to control BR- regulated gene expression. Forms a trimeric complex with IWS1 and ASHH2/SDG8 to regulate BR-reg [...] (335 aa)
GAIDELLA protein GAI; Transcriptional regulator that acts as a repressor of the gibberellin (GA) signaling pathway. Transcription coactivator of the zinc finger transcription factors GAF1/IDD2 and ENY/IDD1 in regulation of gibberellin homeostasis and signaling. No effect of the BOI proteins on its stability. Probably acts by participating in large multiprotein complexes that repress transcription of GA-inducible genes. Positively regulates XERICO expression. In contrast to RGA, it is less sensitive to GA. Its activity is probably regulated by other phytohormones such as auxin and ethylene [...] (533 aa)
PRE2Transcription factor PRE2; Atypical and probable non DNA-binding bHLH transcription factor that integrates multiple signaling pathways to regulate cell elongation and plant development. Regulates light responses by binding and inhibiting the activity of the bHLH transcription factor HFR1, a critical regulator of light signaling and shade avoidance. May have a regulatory role in various aspects of gibberellin-dependent growth and development. (94 aa)
F-ATMBPMyrosinase-binding protein 2; Belongs to the jacalin lectin family. (642 aa)
PAR1Transcription factor PAR1; Atypical bHLH transcription factor that acts as negative regulator of a variety of shade avoidance syndrome (SAS) responses, including seedling elongation and photosynthetic pigment accumulation. Acts as direct transcriptional repressor of two auxin-responsive genes, SAUR15 and SAUR68. May function in integrating shade and hormone transcriptional networks in response to light and auxin changes. (118 aa)
IBH1Transcription factor IBH1; Atypical and probable non DNA-binding bHLH transcription factor that acts as transcriptional repressor that negatively regulates cell and organ elongation in response to gibberellin (GA) and brassinosteroid (BR) signaling. Is able to form heterodimer with BHLH49, thus inhibiting DNA binding of BHLH49, which is a transcriptional activator that regulates the expression of a subset of genes involved in cell expansion by binding to the G-box motif. Binds and inhibits HBI1, a positive regulator of cell elongation that directly binds to the promoters and activated [...] (156 aa)
RGADELLA protein RGA; Probable transcriptional regulator that acts as a repressor of the gibberellin (GA) signaling pathway. Probably acts by participating in large multiprotein complexes that repress transcription of GA-inducible genes. Positively regulates XERICO expression in seeds. Upon GA application, it is degraded by the proteasome, allowing the GA signaling pathway. Compared to other DELLA proteins, it is the most sensitive to GA application. No effect of the BOI proteins on its stability. Its activity is probably regulated by other phytohormones such as auxin and ethylene, attenu [...] (587 aa)
SAUR25SAUR-AC-like protein (Small auxin up RNA). (92 aa)
HBI1Transcription factor HBI1; Atypical bHLH transcription factor that acts as positive regulator of cell elongation downstream of multiple external and endogenous signals by direct binding to the promoters and activation of the two expansin genes EXPA1 and EXPA8, encoding cell wall loosening enzymes. Transcriptional activity is inhibited when binding to the bHLH transcription factor IBH1. (337 aa)
ARF6Auxin response factor 6; Auxin response factors (ARFs) are transcriptional factors that bind specifically to the DNA sequence 5'-TGTCTC-3' found in the auxin-responsive promoter elements (AuxREs). Seems to act as transcriptional activator. Formation of heterodimers with Aux/IAA proteins may alter their ability to modulate early auxin response genes expression. Regulates both stamen and gynoecium maturation. Promotes jasmonic acid production. Partially redundant with ARF8. (935 aa)
Your Current Organism:
Arabidopsis thaliana
NCBI taxonomy Id: 3702
Other names: A. thaliana, Arabidopsis thaliana (L.) Heynh., mouse-ear cress, thale cress, thale-cress
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