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| | NAC010 | NAC domain-containing protein 10; Transcriptional activator that plays a regulatory role in the development of secondary cell wall fibers. Is a direct target of SND1. (314 aa) |
| | NAC026 | NAC domain-containing protein 26; Transcription activator that binds to the secondary wall NAC binding element (SNBE), 5'- (T/A)NN(C/T)(T/C/G)TNNNNNNNA(A/C)GN(A/C/T)(A/T)-3', in the promoter of target genes (By similarity). Involved in xylem formation by promoting the expression of secondary wall-associated transcription factors and of genes involved in secondary wall biosynthesis and programmed cell death, genes driven by the secondary wall NAC binding element (SNBE). Triggers thickening of secondary walls. Belongs to the plant vascular related NAC-domain protein family. (394 aa) |
| | TBL33 | Protein trichome birefringence-like 33; May act as a bridging protein that binds pectin and other cell wall polysaccharides. Probably involved in maintaining esterification of pectins (By similarity). May be involved in the specific O-acetylation of cell wall polymers (By similarity). (425 aa) |
| | NAC073 | NAC domain-containing protein 73; Transcriptional activator that plays a regulatory role in the development of secondary cell wall fibers. Involved in the regulation of cellulose and hemicellulose biosynthetic genes as well as of genes involved in lignin polymerization and signaling. Is not a direct target of SND1. (305 aa) |
| | MYB32 | Transcription factor MYB32. (274 aa) |
| | XCP1 | Cysteine protease XCP1; Cysteine protease involved in xylem tracheary element (TE) autolysis during xylogenesis in roots. Participates in micro autolysis within the intact central vacuole before mega autolysis is initiated by tonoplast implosion. (355 aa) |
| | IRX12 | Laccase-4; Lignin degradation and detoxification of lignin-derived products (By similarity). Required for secondary xylem cell wall lignification; Belongs to the multicopper oxidase family. (558 aa) |
| | TBL34 | Protein trichome birefringence-like 34; May act as a bridging protein that binds pectin and other cell wall polysaccharides. Probably involved in maintaining esterification of pectins (By similarity). May be involved in the specific O-acetylation of cell wall polymers (By similarity). (410 aa) |
| | LBD30 | LOB domain-containing protein 30; Involved in the positive regulation of tracheary element (TE) differentiation. Involved in a positive feedback loop that maintains or promotes NAC030/VND7 expression that regulates TE differentiation- related genes; Belongs to the LOB domain-containing protein family. (228 aa) |
| | TBL31 | Protein trichome birefringence-like 31; May act as a bridging protein that binds pectin and other cell wall polysaccharides. Probably involved in maintaining esterification of pectins (By similarity). May be involved in the specific O-acetylation of cell wall polymers (By similarity). (413 aa) |
| | MYB7 | Transcription factor MYB7; Transcription factor involved in the negative regulation of flavonol biosynthesis. Represses the early phenylpropanoid genes, phenylalanine ammonia-lyase (PAL), cinnamate 4-hydroxylase (C4H) and 4- coumarate-CoA ligase (4CL), as well as the flavonoid-specific genes, flavonoid 3'-hydroxylase (F3'H) and dihydroflavonol 4-reductase (DFR). Plays a role in seed germination inhibition. Negatively regulates the expression of the abscisic acid (ABA) signaling transcription factor ABI5 in seeds. (269 aa) |
| | RWA3 | Protein REDUCED WALL ACETYLATION 3; Probable O-acetyltransferase involved in the acetylation of xylan during secondary wall biosynthesis. (540 aa) |
| | GXM1 | Glucuronoxylan 4-O-methyltransferase 1; Methyltransferase catalyzing 4-O-methylation of glucuronic acid side chains on xylan; Belongs to the methyltransferase superfamily. (282 aa) |
| | F8H | Probable glucuronoxylan glucuronosyltransferase F8H; Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Probably involved in the synthesis of the glycosyl sequence at the glucuronoxylan reducing end; Belongs to the glycosyltransferase 47 family. (469 aa) |
| | MYB63 | Transcription factor MYB63; Transcriptional activator that binds DNA to the AC cis- elements 5'-ACCTACC-3', 5'-ACCAACC-3' and 5'-ACCTAAC-3' of promoters and specifically activates lignin biosynthetic genes during secondary wall formation mediated by SND1. (294 aa) |
| | MYB52 | Transcription factor MYB52; Transcription factor that confers sensitivity to abscisic acid (ABA) and salt, but tolerance to drought. Regulates secondary cell wall (SCW) biosynthesis, especially in interfascicular and xylary fibers. (249 aa) |
| | CESA4 | Cellulose synthase A catalytic subunit 4 [UDP-forming]; Catalytic subunit of cellulose synthase terminal complexes ('rosettes'), required for beta-1,4-glucan microfibril crystallization, a major mechanism of the cell wall formation. Involved in the secondary cell wall formation. Required for the xylem cell wall thickening. (1049 aa) |
| | NAC043 | NAC domain-containing protein 43; Transcription activator of genes involved in biosynthesis of secondary walls. Together with NST2 and NST3, required for the secondary cell wall thickening of sclerenchymatous fibers, secondary xylem (tracheary elements), and of the anther endocethium, which is necessary for anther dehiscence. May also regulate the secondary cell wall lignification of other tissues. (365 aa) |
| | NAC104 | NAC domain-containing protein 104; Probable transcription factor that influences tracheary elements and xylem development by negatively regulating secondary cell wall fiber synthesis and programmed cell death. (187 aa) |
| | GUX2 | UDP-glucuronate:xylan alpha-glucuronosyltransferase 2; Glycosyltransferase required for the addition of both glucuronic acid and 4-O-methylglucuronic acid branches to xylan in stem cell walls. In association with GUX1, is responsible for almost all of the substitutions of the xylan backbone in stem glucuronoxylan. (596 aa) |
| | IRX14 | Beta-1,4-xylosyltransferase IRX14; Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Involved in the elongation of glucuronoxylan xylosyl backbone. Xylan xylosyltransferase that acts cooperatively with IRX9 to achieve the successive addition of xylosyl residues during xylan backbone elongation. Required for the proper composition and structural properties of released seed coat mucilage. Required for the production of highly branched xylan polymers in seed coat mucilage. Xylan with xylose side chains seems to be necessary for pecti [...] (525 aa) |
| | FLA11 | Fasciclin-like arabinogalactan protein 11; May be a cell surface adhesion protein. (246 aa) |
| | CESA8 | Cellulose synthase A catalytic subunit 8 [UDP-forming]; Catalytic subunit of cellulose synthase terminal complexes ('rosettes'), required for beta-1,4-glucan microfibril crystallization, a major mechanism of the cell wall formation. Involved in the secondary cell wall formation. Required for the xylem cell wall thickening. (985 aa) |
| | BHLH48 | Transcription factor bHLH48. (327 aa) |
| | MYB61 | Transcription factor MYB61; Transcription factor that coordinates a small network of downstream target genes required for several aspects of plant growth and development, such as xylem formation and xylem cell differentiation, and lateral root formation. Regulates a specific set of target genes by binding DNA to the AC cis- element 5'-ACCTAC-3'. Functions as a transcriptional regulator of stomatal closure. Plays a role the regulation of stomatal pore size independently of abscisic acid (ABA). Required for seed coat mucilage deposition during the development of the seed coat epidermis. [...] (366 aa) |
| | WRKY12 | Probable WRKY transcription factor 12; Transcription factor. Interacts specifically with the W box (5'-(T)TGAC[CT]-3'), a frequently occurring elicitor-responsive cis- acting element (By similarity); Belongs to the WRKY group II-c family. (218 aa) |
| | IRX10L | Probable beta-1,4-xylosyltransferase IRX10L; Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Probably involved in the elongation of glucuronoxylan xylosyl backbone. (415 aa) |
| | MYB85 | Myb family transcription factor. (266 aa) |
| | MYB83 | Transcription factor MYB83; Transcription factor that acts as molecular switch in the NAC012/SND1-mediated transcriptional network regulating secondary wall biosynthesis. Is directly activated by NAC012/SND1 and its close homologs, including NAC043/NST1, NAC066/NST2, NAC101/VND6 and NAC030/VND7. Is required for functional expression of a number of secondary wall-associated transcription factors and secondary wall biosynthetic genes involved in cellulose, xylan and lignin synthesis. Functions redundantly with MYB46 in the transcriptional regulatory cascade leading to secondary wall form [...] (343 aa) |
| | MYB20 | Transcription factor MYB20; Transcription factor that acts as positive regulator of abscisic acid (ABA) signaling in response to salt stress. Acts as negative regulator ABI1, ABI2 and PP2CA, which are protein phosphatases 2C acting as negative regulator of ABA signaling. Binds to the DNA specific sequence and core element 5'-ACGT-3' found in the promoters of ABI1 and PP2CA to negatively regulate their expression during ABA- dependent salt stress response. (282 aa) |
| | NAC030 | NAC domain-containing protein 30; Transcription activator that binds to the secondary wall NAC binding element (SNBE), 5'- (T/A)NN(C/T)(T/C/G)TNNNNNNNA(A/C)GN(A/C/T)(A/T)-3', in the promoter of target genes (e.g. genes involved in secondary wall biosynthesis, cell wall modification such as xylan accumulation, and programmed cell death). Involved in xylem formation in roots and shoots, especially regulating protoxylem vessel differentiation by promoting immature xylem vessel-specific genes expression. Can activate the expression of several genes including XCP1, MYB46, NAC010/SND3, MYB10 [...] (324 aa) |
| | GAUT12 | Probable galacturonosyltransferase 12; Involved in pectin assembly and/or distribution, and in the synthesis of secondary wall glucuronoxylan. Probably involved in the synthesis of the glycosyl sequence at the glucuronoxylan reducing end. May be involved in synthesis of a complex glycan primer for xylan synthesis. (535 aa) |
| | IRX14H | Probable beta-1,4-xylosyltransferase IRX14H; Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Probably involved in the elongation of glucuronoxylan xylosyl backbone. (492 aa) |
| | IRX15-L | Protein IRX15-LIKE; Required for xylan biosynthesis, but not directly involved in catalyzing the addition of sugars to the growing polymer. (317 aa) |
| | K24M7.12 | VASCULAR-RELATED NAC-DOMAIN 6. (268 aa) |
| | LAC17 | Laccase-17; Lignin degradation and detoxification of lignin-derived products. (577 aa) |
| | NAC007 | NAC domain-containing protein 7; Transcription activator that binds to the secondary wall NAC binding element (SNBE), 5'- (T/A)NN(C/T)(T/C/G)TNNNNNNNA(A/C)GN(A/C/T)(A/T)-3', in the promoter of target genes (By similarity). Involved in xylem formation by promoting the expression of secondary wall-associated transcription factors and of genes involved in secondary wall biosynthesis and programmed cell death, genes driven by the secondary wall NAC binding element (SNBE). Triggers thickening of secondary walls. (395 aa) |
| | MYB54 | Transcription factor MYB54; Transcription factor that regulates secondary cell wall (SCW) biosynthesis, especially in interfascicular and xylary fibers. (243 aa) |
| | NAC083 | NAC domain-containing protein 83; Transcriptional repressor that negatively regulates the expression of genes involved in xylem vessel formation. Represses the transcriptional activation activity of NAC030/VND7, which regulates protoxylem vessel differentiation by promoting immature xylem vessel- specific genes expression. Transcriptional activator that regulates the COLD-REGULATED (COR15A and COR15B) and RESPONSIVE TO DEHYDRATION (LTI78/RD29A and LTI65/RD29B) genes by binding directly to their promoters. Mediates signaling crosstalk between salt stress response and leaf aging process. [...] (252 aa) |
| | GUX4 | Putative UDP-glucuronate:xylan alpha-glucuronosyltransferase 4; May be involved in the substitutions of the xylan backbone in stem glucuronoxylan. (557 aa) |
| | IRX10 | Probable beta-1,4-xylosyltransferase IRX10; Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Probably involved in the elongation of glucuronoxylan xylosyl backbone, especially in the formation of GlcUA side chain of xylans. (412 aa) |
| | COBL4 | COBRA-like protein 4; Belongs to the COBRA family. (431 aa) |
| | GATL1 | Probable galacturonosyltransferase-like 1; Required for the biosynthesis of the tetrasaccharide primer sequence, beta-D-Xyl-(1,3)-alpha-l-Rha-(1,2)-alpha-D-GalA-(1,4)-D-Xyl, located at the reducing end of glucuronoxylan. Might catalyze the transfer of the reducing Xyl residue onto a protein acceptor in the endoplasmic reticulum, which is then transported to the Golgi where the subsequent additions of sugar residues take place. (351 aa) |
| | NAC012 | NAC domain-containing protein 12; Transcriptional activator of genes involved in biosynthesis of secondary walls. Together with NST1, required for the secondary cell wall thickening and lignification of sclerenchymatous fibers and secondary xylem vessels (tracheary elements). Seems to repress the secondary cell wall thickening of xylary fibers. May also regulate the secondary cell wall lignification of other tissues. Binds to and activates the promoter of MYB46. (358 aa) |
| | GXM3 | Glucuronoxylan 4-O-methyltransferase 3; Methyltransferase catalyzing 4-O-methylation of glucuronic acid side chains on xylan; Belongs to the methyltransferase superfamily. (297 aa) |
| | GUX1 | UDP-glucuronate:xylan alpha-glucuronosyltransferase 1; Glycosyltransferase required for the addition of both glucuronic acid and 4-O-methylglucuronic acid branches to xylan in stem cell walls. In association with GUX2, is responsible for almost all of the substitutions of the xylan backbone in stem glucuronoxylan. (659 aa) |
| | CTL2 | Chitinase-like protein 2; No chitinase activity (By similarity). Required for proper cell wall biosynthesis in etiolated seedlings. Prevents lignin accumulation in hypocotyls; Belongs to the glycosyl hydrolase 19 family. (333 aa) |
| | MYB46 | Transcription factor MYB46; Transcription activator. Involved in the regulation of secondary wall biosynthesis in fibers and vessels. Transcription activator of the mannan synthase CSLA9 that recognizes and binds to the DNA consensus sequence 5'-[AG][GT]T[AT]GGT[GA]-3' cis- regulatory element of CSLA9 promoter. Transcription factor that acts as molecular switch in the NAC012/SND1-mediated transcriptional network regulating secondary wall biosynthesis. Is directly activated by NAC012/SND1. Functions redundantly with MYB83 in the transcriptional regulatory cascade leading to secondary wa [...] (280 aa) |
| | ESK1 | Protein ESKIMO 1; Probable xylan acetyltransferase required for 2-O- and 3-O- monoacetylation of xylosyl residues in xylan. Negative regulator of cold acclimation. Involved in water economy as well as salt tolerance. Regulated at the transcriptional level by NAC012/SND1. May act as a bridging protein that binds pectin and other cell wall polysaccharides. Probably involved in maintaining esterification of pectins (By similarity). Belongs to the PC-esterase family. TBL subfamily. (487 aa) |
| | F9H3.10 | Ankyrin repeat family protein. (683 aa) |
| | GLP10 | Germin-like protein subfamily 2 member 4; May play a role in plant defense. Probably has no oxalate oxidase activity even if the active site is conserved; Belongs to the germin family. (220 aa) |
| | NAC066 | NAC domain-containing protein 66; Transcription activator of genes involved in biosynthesis of secondary walls. Together with NST1, required for the secondary cell wall thickening of the anther endocethium, which is necessary for anther dehiscence. May also regulate the secondary cell wall lignification of other tissues such as tracheary elements. (334 aa) |
| | MYB58 | Transcription factor MYB58; Transcriptional activator that binds DNA to the AC cis- elements 5'-ACCTACC-3', 5'-ACCAACC-3' and 5'-ACCTAAC-3' of promoters and specifically activates lignin biosynthetic genes during secondary wall formation mediated by SND1. (274 aa) |
| | NAC037 | NAC domain-containing protein 37; Transcription activator that binds to the secondary wall NAC binding element (SNBE), 5'- (T/A)NN(C/T)(T/C/G)TNNNNNNNA(A/C)GN(A/C/T)(A/T)-3', in the promoter of target genes (By similarity). Involved in xylem formation by promoting the expression of secondary wall-associated transcription factors and of genes involved in secondary wall biosynthesis and programmed cell death, genes driven by the secondary wall NAC binding element (SNBE). Triggers thickening of secondary walls. (365 aa) |
| | IRX15 | Protein IRREGULAR XYLEM 15; Required for xylan biosynthesis, but not directly involved in catalyzing the addition of sugars to the growing polymer. (322 aa) |
| | MYB42 | Putative transcription factor. (286 aa) |
| | MYB26 | Transcription factor MYB26; Probable transcription factor that regulates lignified secondary cell wall thickening of the anther endocethium, which is necessary for anther dehiscence. May play a role in specifying early endothecial cell development by regulating a number of genes linked to secondary thickening such as NST1 and NST2. Acts upstream of the lignin biosynthesis pathway. (367 aa) |
| | MYB43 | Putative transcription factor. (327 aa) |
| | AtMYB103 | Putative MYB family transcription factor; 19087-20744. (370 aa) |
| | CESA7 | Cellulose synthase A catalytic subunit 7 [UDP-forming]; Catalytic subunit of cellulose synthase terminal complexes ('rosettes'), required for beta-1,4-glucan microfibril crystallization, a major mechanism of the cell wall formation. Involved in the secondary cell wall formation. Required for the xylem cell wall thickening. Belongs to the glycosyltransferase 2 family. Plant cellulose synthase subfamily. (1026 aa) |
| | IRX9H | Probable beta-1,4-xylosyltransferase IRX9H; Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Probably involved in the elongation of glucuronoxylan xylosyl backbone. (394 aa) |
| | ATMYB69 | Putative transcription factor. (250 aa) |
| | IRX9 | Beta-1,4-xylosyltransferase IRX9; Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Xylan xylosyltransferase that acts cooperatively with IRX14 to achieve the successive addition of xylosyl residues during xylan backbone elongation. (351 aa) |
| | IRX7 | Probable glucuronoxylan glucuronosyltransferase IRX7; Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Probably involved in the synthesis of the glycosyl sequence at the glucuronoxylan reducing end. Belongs to the glycosyltransferase 47 family. (448 aa) |
