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| | EXPB3 | Expansin-B3; May cause 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). (264 aa) |
| | TCP12 | Transcription factor TCP12; Transcription factor that prevents axillary bud outgrowth. May also delay early axillary bud development. Probably involved in the auxin-induced control of apical dominance. (356 aa) |
| | ERL1 | LRR receptor-like serine/threonine-protein kinase ERL1; Receptor kinase that regulates inflorescence architecture and organ shape as well as stomatal patterning, including density and clustering, together with ER and ERL2. Redundantly involved with ER in procambial development regulation. Forms a functional ligand-receptor pair with EPF1 (AC Q8S8I4). Forms a constitutive complex with TMM involved in the recognition of the stomatal regulatory peptides EPF1, EPF2 and EPFL9/STOMAGEN. Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. (966 aa) |
| | RVE2 | Protein REVEILLE 2; Positive regulator for cold-responsive gene expression and cold tolerance. Part of a regulatory feedback loop that controls a subset of the circadian outputs and modulates the central oscillator. Negatively self-regulates its own expression. (287 aa) |
| | RVE1 | Protein REVEILLE 1; Morning-phased transcription factor integrating the circadian clock and auxin pathways. Binds to the evening element (EE) of promoters. Does not act within the central clock, but regulates free auxin levels in a time-of-day specific manner. Positively regulates the expression of YUC8 during the day, but has no effect during the night. Negative regulator of freezing tolerance. (387 aa) |
| | EIN3 | Protein ETHYLENE INSENSITIVE 3; Probable transcription factor acting as a positive regulator in the ethylene response pathway. Is required for ethylene responsiveness in adult plant tissues. Binds a primary ethylene response element present in the ETHYLENE-RESPONSE-FACTOR1 promoter with consequence to activate the transcription of this gene. (628 aa) |
| | HY5 | Transcription factor HY5; Transcription factor that promotes photomorphogenesis in light. Acts downstream of the light receptor network and directly affects transcription of light-induced genes. Specifically involved in the blue light specific pathway, suggesting that it participates in transmission of cryptochromes (CRY1 and CRY2) signals to downstream responses. In darkness, its degradation prevents the activation of light-induced genes (Probable). Acts coordinately with SPL7 to regulate the microRNA miR408 and its target genes in response to changes in light and copper conditions. R [...] (168 aa) |
| | SIRK | Senescence-induced receptor-like serine/threonine-protein kinase; Involved in innate immune response of plants. Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. (876 aa) |
| | SBT1.2 | Subtilisin-like protease SBT1.2; Serine protease involved in the negative regulation of stomatal density and distribution. Not active on EPFL6 (AC Q1PEY6). Positive regulator of water use efficiency (WUE). (775 aa) |
| | CTG10 | F-box/kelch-repeat protein At4g19330; Involved in seed germination. (383 aa) |
| | CYP83B1 | Cytochrome P450 83B1; Involved in the metabolism of aromatic oximes. Catalyzes the oxime metabolizing step in indole glucosinolate biosynthesis by converting indole-3-acetaldoxime into indole-3-S-alkyl-thiohydroximate. Probably required for glucosinolate activation in response to pathogens. Functions in auxin homeostasis because indole-3-acetaldoxime also serves as a precursor for auxin biosynthesis. Specifically metabolizes (E)-p-hydroxyphenylacetaldoxime into an S-alkyl- thiohydroximate. (499 aa) |
| | MKK4 | Mitogen-activated protein kinase kinase 4; Involved in the second phase of hydrogen peroxide generation during hypersensitive response-like cell death. Involved in the innate immune MAP kinase signaling cascade (MEKK1, MKK4/MKK5 and MPK3/MPK6) downstream of bacterial flagellin receptor FLS2. Activates by phosphorylation the downstream MPK3 and MPK6. YDA-MKK4/MKK5-MPK3/MPK6 module regulates stomatal cell fate before the guard mother cell (GMC) is specified. This MAPK cascade also functions downstream of the ER receptor in regulating coordinated local cell proliferation, which shapes the [...] (366 aa) |
| | PIF3 | Transcription factor PIF3; Transcription factor acting positively in the phytochrome signaling pathway. Activates transcription by binding to the G box (5'- CACGTG-3'). (524 aa) |
| | CYP79B2 | Tryptophan N-monooxygenase 1; Converts tryptophan to indole-3-acetaldoxime, a precursor for tryptophan-derived glucosinolates and indole-3-acetic acid (IAA). Involved in the biosynthetic pathway to 4-hydroxyindole-3-carbonyl nitrile (4-OH-ICN), a cyanogenic metabolite required for inducible pathogen defense. Belongs to the cytochrome P450 family. (541 aa) |
| | BBX28 | B-box type zinc finger family protein. (223 aa) |
| | BBX23 | B-box zinc finger protein 23; Probable transcription factor that may be involved in seedling photomorphogenesis. (162 aa) |
| | SGR1 | Magnesium dechelatase SGR1, chloroplastic; Magnesium chelatase involved in chlorophyll a degradation in the chlorophyll-protein complexes of photosystem I (PSI) and photosystem II (PSII). Contributes to the degradation of PSI and PSII in the thylakoid membranes. Required to trigger chlorophyll degradation during natural and dark-induced leaf senescence (Probable). Mediates chlorophyll degradation during embryo degreening. Recombinant SGR1 possesses high dechelating activity against chlorophyll a, very low activity against chlorophyllide a, and no activity against chlorophyll b. Magnesi [...] (268 aa) |
| | ELF3 | Protein EARLY FLOWERING 3; May be a transcription factor part of a circadian clock input pathway. Acts within a 'zeitnehmer' feedback loop and is involved in its own circadian regulation. Has no role in regulating circadian clock function in the dark. Part of a corepressor complex consisting of ELF4, ELF3, and LUX involved in the transcriptional regulation of APRR9. The activity of the protein may be decreased in long day conditions due to its interaction with phytochrome B (phyB). Can regulate the initiation of flowering independently of phyB. Also involved in responses to nematode pa [...] (695 aa) |
| | PHYA | Phytochrome A; Regulatory photoreceptor which exists in two forms that are reversibly interconvertible by light: the Pr form that absorbs maximally in the red region of the spectrum and the Pfr form that absorbs maximally in the far-red region. Photoconversion of Pr to Pfr induces an array of morphogenetic responses, whereas reconversion of Pfr to Pr cancels the induction of those responses. Pfr controls the expression of a number of nuclear genes including those encoding the small subunit of ribulose-bisphosphate carboxylase, chlorophyll A/B binding protein, protochlorophyllide reduct [...] (1122 aa) |
| | PHYB | Phytochrome B; Regulatory photoreceptor which exists in two forms that are reversibly interconvertible by light: the Pr form that absorbs maximally in the red region of the spectrum and the Pfr form that absorbs maximally in the far-red region. Photoconversion of Pr to Pfr induces an array of morphogenetic responses, whereas reconversion of Pfr to Pr cancels the induction of those responses. Pfr controls the expression of a number of nuclear genes including those encoding the small subunit of ribulose-bisphosphate carboxylase, chlorophyll A/B binding protein, protochlorophyllide reduct [...] (1172 aa) |
| | PHYC | Phytochrome C; Regulatory photoreceptor which exists in two forms that are reversibly interconvertible by light: the Pr form that absorbs maximally in the red region of the spectrum and the Pfr form that absorbs maximally in the far-red region. Photoconversion of Pr to Pfr induces an array of morphogenic responses, whereas reconversion of Pfr to Pr cancels the induction of those responses. Pfr controls the expression of a number of nuclear genes including those encoding the small subunit of ribulose-bisphosphate carboxylase, chlorophyll A/B binding protein, protochlorophyllide reductas [...] (1111 aa) |
| | PHYD | Phytochrome D; Regulatory photoreceptor which exists in two forms that are reversibly interconvertible by light: the Pr form that absorbs maximally in the red region of the spectrum and the Pfr form that absorbs maximally in the far-red region. Photoconversion of Pr to Pfr induces an array of morphogenic responses, whereas reconversion of Pfr to Pr cancels the induction of those responses. Pfr controls the expression of a number of nuclear genes including those encoding the small subunit of ribulose-bisphosphate carboxylase, chlorophyll A/B binding protein, protochlorophyllide reductas [...] (1164 aa) |
| | PHYE | Phytochrome E; Regulatory photoreceptor which exists in two forms that are reversibly interconvertible by light: the Pr form that absorbs maximally in the red region of the spectrum and the Pfr form that absorbs maximally in the far-red region. Photoconversion of Pr to Pfr induces an array of morphogenic responses, whereas reconversion of Pfr to Pr cancels the induction of those responses. Pfr controls the expression of a number of nuclear genes including those encoding the small subunit of ribulose-bisphosphate carboxylase, chlorophyll A/B binding protein, protochlorophyllide reductas [...] (1112 aa) |
| | AXR1 | NEDD8-activating enzyme E1 regulatory subunit AXR1; Regulatory subunit of the dimeric ECR1-AXR1 E1 enzyme. E1 activates RUB1/NEDD8 by first adenylating its C-terminal glycine residue with ATP, thereafter linking this residue to the side chain of the catalytic cysteine, yielding a RUB1-ECR1 thioester and free AMP. E1 finally transfers RUB1 to the catalytic cysteine of RCE1. Plays an important role in auxin response. Regulates the chromosomal localization of meiotic recombination by crossovers (COs) and subsequent synapsis, probably through the activation of a CRL4 complex. Required for [...] (540 aa) |
| | COP1 | E3 ubiquitin-protein ligase COP1; E3 ubiquitin-protein ligase that acts as a repressor of photomorphogenesis and as an activator of etiolation in darkness. E3 ubiquitin ligases accept ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Represses photomorphogenesis in darkness by mediating ubiquitination and subsequent proteasomal degradation of light-induced transcription factors such as HY5, HYH and LAF1. Down-regulates MYB21, probably via ubiquitination process. Light stimuli abrogate the repre [...] (675 aa) |
| | NIT3 | Nitrilase 3; Can convert indole-3-acetonitrile to the plant hormone indole-3-acetic acid. (346 aa) |
| | DET1 | Light-mediated development protein DET1; Component of light signal transduction machinery. Involved in repression of photomorphogenesis in darkness by participating in the CDD complex, a complex probably required to regulate the activity of ubiquitin conjugating enzymes (E2s). Involved in repression of deetiolation in the developing seedling. Repression of photomorphogenesis is probably mediated by ubiquitination and subsequent degradation of photomorphogenesis-promoting factors such as HY5, HYH and LAF1. Involved in the repression of blue light responsive promoter in chloroplasts. May [...] (543 aa) |
| | ABI3 | B3 domain-containing transcription factor ABI3; Participates in abscisic acid-regulated gene expression during seed development. Regulates the transcription of SGR1 and SGR2 that are involved in leaf and embryo degreening. (720 aa) |
| | BBX20 | B-box zinc finger protein 20; Acts as positive regulator of seedling photomorphogenesis. Plays a negative role in brassinosteroid responses. (242 aa) |
| | MIP1A | B-box domain protein 30; Developmental regulator acting by forming heterodimeric complexes, that sequester CO and CO-like (COL) proteins into non- functional complexes. Engages CO and the transcriptional repressor TPL in a tripartite complex. Involved in the CO-mediated long-day flowering-promotion pathway. (117 aa) |
| | XTH15 | Xyloglucan endotransglucosylase/hydrolase protein 15; Catalyzes xyloglucan endohydrolysis (XEH) and/or endotransglycosylation (XET). Cleaves and religates xyloglucan polymers, an essential constituent of the primary cell wall, and thereby participates in cell wall construction of growing tissues. Has a high XET activity, but little or no XEH activity in vitro. Acceptor preferences are XXXGol > XLLGol = XLFGol > XXLGol > XXFGol. (289 aa) |
| | MPK3 | Mitogen-activated protein kinase 3; Involved in oxidative stress-mediated signaling cascade (such as ozone). Involved in the innate immune MAP kinase signaling cascade (MEKK1, MKK4/MKK5 and MPK3/MPK6) downstream of bacterial flagellin receptor FLS2. May be involved in hypersensitive response (HR)-mediated signaling cascade by modulating LIP5 phosphorylation and subsequent multivesicular bodies (MVBs) trafficking. May phosphorylate regulators of WRKY transcription factors. Mediates the phosphorylation of VIP1 and subsequent stress genes transcription in response to Agrobacterium. MKK9-M [...] (370 aa) |
| | GA3OX1 | Gibberellin 3-beta-dioxygenase 1; Converts the inactive gibberellin (GA) precursors GA9 and GA20 in the bioactives gibberellins GA4 and GA1. Involved in the production of bioactive GA for vegetative growth and development. Belongs to the iron/ascorbate-dependent oxidoreductase family. GA3OX subfamily. (358 aa) |
| | DOF3.7 | Dof zinc finger protein DOF3.7; Transcription factor specifically involved in the maternal control of seed germination. Regulates transcription by binding to a 5'-AA[AG]G-3' consensus core sequence. May ensure the inactivity of a component that would be activated to trigger germination as a consequence of red light perception. (296 aa) |
| | FAMA | Transcription factor FAMA; Transcription activator. Together with MYB88 and MYB124, ensures that stomata contain just two guard cells (GCs) by enforcing a single symmetric precursor cell division before stomatal maturity. Together with SPCH and MUTE, regulates the stomata formation. Required to promote differentiation and morphogenesis of stomatal guard cells and to halt proliferative divisions in their immediate precursors. Mediates the formation of stomata. Prevents histone H3K27me3 marks and derepresses stem cell gene expression. (414 aa) |
| | BHLH72 | Transcription factor PIF7; Transcription factor acting negatively in the phytochrome B signaling pathway under prolonged red light. Regulates PHYB abundance at the post-transcriptional level, possibly via the ubiquitin- proteasome pathway. May regulate the expression of a subset of genes by binding to the G-box motif. (366 aa) |
| | MDC12.4 | 2-oxoglutarate (2OG) and Fe(II)-dependent oxygenase superfamily protein. (462 aa) |
| | ERL2 | LRR receptor-like serine/threonine-protein kinase ERL2; Receptor kinase that regulates inflorescence architecture and organ shape as well as stomatal patterning, including density and clustering, together with ERL1 and ER. (967 aa) |
| | SPCH | Transcription factor SPEECHLESS; Transcription factor acting as an integration node for stomata and brassinosteroid (BR) signaling pathways to control stomatal initiation and development. Activates transcription when in the presence of SCRM/ICE1. Functions as a dimer with SCRM or SCRM2 during stomatal initiation. Required for the initiation, the spacing and the formation of stomata, by promoting the first asymmetric cell divisions. Together with FMA and MUTE, modulates the stomata formation. Involved in the regulation of growth reduction under osmotic stress (e.g. mannitol), associated [...] (364 aa) |
| | HOS1 | E3 ubiquitin-protein ligase HOS1; E3 ubiquitin-protein ligase that mediates ubiquitination and subsequent proteasomal degradation of the transcription factor ICE1. Acts as a negative regulator of cold signaling pathways. Probably involved in recruiting the NUP107-160 subcomplex of the nuclear pore complex to chromatin (Probable). Controls flowering time in response to ambient temperatures (16 and 23 degrees Celsius) and intermittent cold, probably via the regulation of FT and TSF levels. (927 aa) |
| | PIF5 | Transcription 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) |
| | RGL2 | DELLA protein RGL2; Probable transcriptional regulator that acts as a repressor of the gibberellin (GA) signaling pathway. No effect of the BOI proteins on its stability. Probably acts by participating in large multiprotein complexes that repress transcription of GA-inducible genes. Upon GA application, it is degraded by the proteasome, allowing the GA signaling pathway. Acts as a major GA-response repressor of seed germination, including seed thermoinhibition. Promotes the biosynthesis of abscisic acid (ABA), especially in seed coats to maintain seed dormancy. Delays flowering and adu [...] (547 aa) |
| | PIF1 | Transcription 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) |
| | EPF1 | Protein EPIDERMAL PATTERNING FACTOR 1; Controls stomatal patterning. Regulates asymmetric cell division during guard cell differentiation. Mediates stomatal development inhibition. Not cleaved by the protease CRSP (AC Q9LNU1). MEPF1: mobile signal controlling stomatal development in a non-cell-autonomous manner. Uses ERL1 as major receptor. May act by competing with somatogen (AC Q9SV72) for the same receptor, TMM (AC Q9SSD1). Belongs to the plant cysteine rich small secretory peptide family. Epidermal patterning factor subfamily. (104 aa) |
| | HYH | Transcription factor HY5-like; Transcription factor that promotes photomorphogenesis in light. Acts downstream of the light receptor network and directly affects transcription of light-induced genes. Specifically involved in the blue light specific pathway, suggesting that it participates in transmission of cryptochromes (CRY1 and CRY2) signals to downstream responses. In darkness, its degradation prevents the activation of light-induced genes; Belongs to the bZIP family. (149 aa) |
| | PIF4 | Transcription 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) |
| | NYC1 | Probable chlorophyll(ide) b reductase NYC1, chloroplastic; Involved in chlorophyll b degradation. Belongs to the chlorophyll catabolic enzymes (CCEs); Belongs to the short-chain dehydrogenases/reductases (SDR) family. (496 aa) |
| | PIN7 | Auxin efflux carrier component 7; Acts as a component of the auxin efflux carrier. Mediates the initial auxin gradient which contributes to the establishment of the apical-basal axis in early embryogenesis. (619 aa) |
| | SPA4 | Protein SPA1-RELATED 4; Repressor of photomorphogenesis in the light. Probably part of the COP1/SPA E3 ubiquitin-protein ligase complex. (794 aa) |
| | AUX1 | Auxin 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) |
| | CRY2 | Cryptochrome-2; Photoreceptor that mediates primarily blue light inhibition of hypocotyl elongation and photoperiodic control of floral initiation, and regulates other light responses, including circadian rhythms, tropic growth, stomata opening, guard cell development, root development, bacterial and viral pathogen responses, abiotic stress responses, cell cycles, programmed cell death, apical dominance, fruit and ovule development, seed dormancy, and magnetoreception. Photoexcited cryptochromes interact with signaling partner proteins to alter gene expression at both transcriptional a [...] (612 aa) |
| | WRKY6 | WRKY transcription factor 6; Transcription factor involved in the control of processes related to senescence and pathogen defense. Interacts specifically with the W box (5'-(T)TGAC[CT]-3'), a frequently occurring elicitor-responsive cis-acting element. Activates the transcription of the SIRK gene and represses its own expression and that of the WRKY42 genes. Modulates phosphate homeostasis and Pi translocation by regulating PHO1 expression ; Belongs to the WRKY group II-b family. (553 aa) |
| | EXPA1 | Expansin-A1; 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. (250 aa) |
| | DPBF4 | ABSCISIC ACID-INSENSITIVE 5-like protein 3; Binds to the embryo specification element and the ABA- responsive element (ABRE) of the Dc3 gene promoter and to the ABRE of the Em1 gene promoter. Could participate in abscisic acid-regulated gene expression during seed development; Belongs to the bZIP family. ABI5 subfamily. (262 aa) |
| | YDA | Mitogen-activated protein kinase kinase kinase YODA; Functions in a MAP kinase cascade that acts as a molecular switch to regulate the first cell fate decisions in the zygote and the early embryo. Promotes elongation of the zygote and development of its basal daughter cell into the extra-embryonic suspensor. In stomatal development, acts downstream of the LRR receptor TMM, but upstream of the MKK4/MKK5-MPK3/MPK6 module to regulate stomatal cell fate before the guard mother cell (GMC) is specified. Plays a central role in both guard cell identity and pattern formation. This MAPK cascade [...] (883 aa) |
| | HFR1 | Transcription 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) |
| | GLK2 | Transcription activator GLK2; Transcriptional activator that functions with GLK1 to promote chloroplast development. Acts as an activator of nuclear photosynthetic genes involved in chlorophyll biosynthesis, light harvesting, and electron transport. Acts in a cell-autonomous manner to coordinate and maintain the photosynthetic apparatus within individual cells. May function in photosynthetic capacity optimization by integrating responses to variable environmental and endogenous cues. Prevents premature senescence. (386 aa) |
| | NAC92 | NAC domain-containing protein 92; Transcription activator that binds to DNA in promoters of target genes on a specific bipartite motif 5'-[ACG][CA]GT[AG](5- 6n)[CT]AC[AG]-3'. Promotes lateral root development. Triggers the expression of senescence-associated genes during age-, salt- and dark-induced senescence through a regulatory network that may involve cross-talk with salt- and H(2)O(2)- dependent signaling pathways. Regulates also genes during seed germination. Regulates positively aging-induced cell death. Involved in age-related resistance (ARR) against Pseudomonas syringae pv. t [...] (285 aa) |
| | SWEET15 | Bidirectional sugar transporter SWEET15; Mediates both low-affinity uptake and efflux of sugar across the plasma membrane. Regulates cell viability under high salinity. Promotes senescence and sensitivity to salt stress. Contributes to seed filling by triggering sucrose efflux involved in the transfer of sugars from seed coat to embryos. (292 aa) |
| | AXR4 | Protein AUXIN RESPONSE 4; Required for the auxin influx facilitator AUX1 polar trafficking and its asymmetric localization within the plasma membrane. Not involved in the PIN proteins localization. (473 aa) |
| | EXPA10 | Expansin-A10; 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. Plays a major role in control of leaf growth and influences the mechanical breakage behavior of the pedicel. (249 aa) |
| | SCRM2 | Transcription factor SCREAM2; Mediates stomatal differentiation in the epidermis probably by controlling successive roles of SPCH, MUTE, and FAMA. Functions as a dimer with SPCH during stomatal initiation. (450 aa) |
| | GAI | DELLA 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) |
| | BBX21 | B-box zinc finger protein 21; Transcription activator that acts as positive regulator of seedling photomorphogenesis. Acts downstream of COP1 and play an important role in early and long-term adjustment of the shade avoidance syndrome (SAS) responses in natural environments. (331 aa) |
| | MIP1B | B-box domain protein 31; Developmental regulator acting by forming heterodimeric complexes, that sequester CO and CO-like (COL) proteins into non- functional complexes. Involved in the CO-mediated long-day flowering-promotion pathway. Engages CO and the transcriptional repressor TPL in a tripartite complex (By similarity). Involved in the CO-mediated long-day flowering-promotion pathway. (121 aa) |
| | GH3.6 | Indole-3-acetic acid-amido synthetase GH3.6; 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 [...] (612 aa) |
| | PIN2 | Auxin efflux carrier component 2; Acts as a component of the auxin efflux carrier. Seems to be involved in the root-specific auxin transport, and mediates the root gravitropism. Its particular localization suggest a role in the translocation of auxin towards the elongation zone. (647 aa) |
| | LAF1 | Transcription factor LAF1; Transcription factor that promotes photomorphogenesis in the light by participating in the transmission of phytochrome A (phyA) signals to downstream responses. Probably acts by activating expression of light-induced genes. In darkness, its degradation prevents the activation of light-induced genes. (283 aa) |
| | MUTE | Transcription factor MUTE; Transcription factor. Together with FMA and SPCH, regulates the stomata formation. Required for the differentiation of stomatal guard cells, by promoting successive asymmetric cell divisions and the formation of guard mother cells. Promotes the conversion of the leaf epidermis into stomata. (202 aa) |
| | TAA1 | L-tryptophan--pyruvate aminotransferase 1; L-tryptophan aminotransferase involved in auxin (IAA) biosynthesis. Can convert L-tryptophan and pyruvate to indole-3-pyruvic acid (IPA) and alanine. Catalyzes the first step in IPA branch of the auxin biosynthetic pathway. Required for auxin production to initiate multiple change in growth in response to environmental and developmental cues. It is also active with phenylalanine, tyrosine, leucine, alanine, methionine and glutamine. Both TAA1 and TAR2 are required for maintaining proper auxin levels in roots, while TAA1, TAR1 and TAR2 are requ [...] (391 aa) |
| | PIN3 | Auxin efflux carrier component 3; Acts as a component of the auxin efflux carrier. Seems to be involved in the lateral auxin transport system and mediates tropic growth. Coordinated polar localization of PIN3 is directly regulated by the vesicle trafficking process. (640 aa) |
| | SUR1 | S-alkyl-thiohydroximate lyase SUR1; C-S lyase involved in glucosinolate biosynthesis. Converts S- (alkylacetohydroximoyl)-L-cysteine to thiohydroximate. Functions in auxin homeostasis. Probably required for glucosinolate activation in response to pathogens; Belongs to the class-I pyridoxal-phosphate-dependent aminotransferase family. (462 aa) |
| | PAR1 | Transcription 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) |
| | ABI5 | Protein ABSCISIC ACID-INSENSITIVE 5; Participates in ABA-regulated gene expression during seed development and subsequent vegetative stage by acting as the major mediator of ABA repression of growth. Binds to the embryo specification element and the ABA-responsive element (ABRE) of the Dc3 gene promoter and to the ABRE of the Em1 and Em6 genes promoters. Can also trans- activate its own promoter, suggesting that it is autoregulated. Plays a role in sugar-mediated senescence. Belongs to the bZIP family. ABI5 subfamily. (442 aa) |
| | EXPB1 | Expansin-B1; May cause 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 B subfamily. (271 aa) |
| | RGA | DELLA 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) |
| | BBX22 | B-box zinc finger protein 22; Acts as positive regulator of seedling photomorphogenesis and light-regulated inhibition of hypocotyl elongation, independently and in concert with HY5 and BBX21. Acts as a positive regulator of de- etiolation and influences chloroplast biogenesis and function through regulation of genes encoding chloroplast proteins. Acts downstream of COP1 and plays an important role in early and long- term adjustment of the shade avoidance syndrome (SAS) responses in natural environments. Regulates the expression of genes responsive to light hormone signals which may co [...] (299 aa) |
| | SPA1 | Protein SUPPRESSOR OF PHYA-105 1; Controls normal photoperiodic flowering and regulates circadian rhythms. Required for suppression of photomorphogenesis in dark-grown seedlings and for normal elongation growth of adult plants. Integral component of the COP1/SPA E3 ubiquitin-protein ligase complex. Involved in HY5, HFR1, LAF1 and CO degradation. (1029 aa) |
| | VQ29 | VQ motif-containing protein 29; May function as negative regulator of flowering transition. (123 aa) |
| | GA3OX2 | Gibberellin 3-beta-dioxygenase 2; Converts the inactive gibberellin (GA) precursors GA9 and GA20 in the bioactives gibberellins GA4 and GA1. Involved in the production of bioactive GA for vegetative growth and development. Belongs to the iron/ascorbate-dependent oxidoreductase family. GA3OX subfamily. (347 aa) |
