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Table 1 List of putative transcription factors in Laccaria bicolor genome

From: Regulatory networks underlying mycorrhizal development delineated by genome-wide expression profiling and functional analysis of the transcription factor repertoire of the plant symbiotic fungus Laccaria bicolor

Protein ID gene names and functional classesa,b

Putative gene product functionc

Cell wall

 247,901

LbACE1–1

Repressor of plant cell wall-degrading enzymes

 622,364

LbACE1–2

Repressor of plant cell wall-degrading enzymes

 293,207

LbRlm1–1

Maintenance of cell wall integrity

 302,141

LbRlm1–2

Maintenance of cell wall integrity

Development

  Sexual development and fruiting body formation

   393,192

LbSte12α

Regulator of fruiting body development

  522,619

LbMcm1

Regulator of pheromone response

  668,161

LbNosA

Number of sexual spores, regulator of sexual development

  301,103

LbHD1

Mating-type protein

  379,291

LbHD2

Mating-type protein

  324,166

LbHom1–1

Regulator of fruiting body development; Involved in mushroom tissue formation

  399,669

LbHom1–2

Regulator of fruiting body development; Involved in mushroom tissue formation

  293,988

LbHom2

Regulator of fruiting body development; Regulation of the formation of the auto-inhibitor and of dikaryon-specific hydrophobins

  487,295

LbC2h2

Regulator of fruiting body development; Involved in primordia formation

  585,149

LbFst3

Negative regulator of fruiting body development; Inhibits the formation of clusters of mushrooms

  585,421

LbNsdD

Regulator of sexual development

  644,689

LbExp1

Regulator of the final phase of fruiting-body morphogenesis

  308,722

LbFst4

Positive regulator of fruiting body development; Involves in the switch between the vegetative and the reproductive phase and in aggregate formation

  685,209

LbGat1

Regulator of fruiting body development; Involved in mushroom tissue formation

  300,824

LbItc1

Subunit of ATP-dependent Isw2p-Itc1p chromatin remodeling complex required for repression of a-specific genes, early meiotic genes during mitotic growth, and INO1

   386,478

LbPcc1

Regulator of sexual development

  381,332

LbPriB

Primordia formation, Regulator of sexual development

  705,566

LbCDC5

Regulator of sexual development

  313,811

LbMoc3

Regulator of sexual development, ascus formation, and stress response

  680,902

LbPrf1

Regulator of pheromone signalling, filamentous growth and pathogenic development

  700,295

LbBri1

Regulator of fruiting body development; Regulation of the formation of the auto-inhibitor and of dikaryon-specific hydrophobins

  293,563

LbSnf5

Regulator of sexual development

  311,495

LbRum1

Repressor for genes regulated by the b mating type locus, involved in spore development

  451,323

LbMedA-1

Regulator of sexual and asexual development

  483,117

LbMedA-2

Regulator of sexual and asexual development

  Asexual development and basal hyphal growth

  685,688

LbCol21

Colonial, regulator of hyphal growth

  657,026

LbDevR

Required for conidiophore development

   298,274

LbAbaA

Regulator of conidiation

  292,045

LbCon7

Cell morphology regulator

  481,451

LbReb1

Regulator of growth

  190,760

LbRsc8

Component of the RSC chromatin remodeling complex essential for viability and mitotic growth

  608,593

LbSnt2

Regulator of conidiation, hyphal growth and septation

  Others

  231,949

LbADA2

All development altered, regulator of basal hyphal growth and asexual and sexual development

Cell cycle

 694,007

LbSwi6

MBF complex, regulator of cell cycle

 709,955

LbMbp1

MBF complex, regulator of cell cycle

 164,524

LbSep1

Activator for a small subset of mitotic genes involved in septation

 476,882

LbFkh2

Regulator of cell cycle

  481,652

LbSak1

Positive regulator of cAMP-dependent protein kinase-mediated exit from the mitotic cell cycle

 622,520

LbCbf11

Regulator of cell adhesion and cell and nuclear division

 691,497

LbSFP1

Regulator of ribosomal protein, biogenesis genes, response to nutrients, stress and DNA-damage, G2/M transitions during mitotic cell cycle and cell size

Metabolism

  Carbon

  443,509

LbCreA

Major carbon catabolite repression protein

  296,037

LbNrg1

Carbon catabolite repression

  399,488

LbAcuk

Positive regulator of gluconeogenesis

  567,783

LbAcuM-1

Positive regulator of gluconeogenesis

  670,648

LbAcuM-2

Positive regulator of gluconeogenesis

  708,062

LbAcuM-3

Positive regulator of gluconeogenesis

  708,164

LbRgm1

Positive regulator of monosaccharide catabolism and aldehyde metabolism

  308,583

LbCmr1

Regulator of melanin biosynthesis

  696,532

LbTrm2

Regulator of methanol-inducible gene expression

  Nitrogen

  488,576

LbAreA

Major, positively acting, nitrogen regulatory protein

  301,157

LbNirA-1

Pathway specific, positively acting nitrate regulatory protein

  317,073

LbNirA-2

Pathway specific, positively acting nitrate regulatory protein

   293,242

LbGcn4

Positive regulator of the transcriptional response to amino acid starvation

  301,697

LbBAS1

Transcription factor, involved in regulating basal and induced expression of genes of the purine and histidine biosynthesis pathways; also involved in regulation of meiotic recombination at specific genes

  Sulfur

  706,529

LbCBF1

Activator of sulfur metabolism; centromere binding protein

  476,130

LbMetR-1

Activator of sulfur metabolism

  490,310

LbMetR-2

Activator of sulfur metabolism

  Lipid

  

  654,679

LbFarA

Activates transcription of genes required for acetate utilization

  573,592

LbOaf3

Negative regulator of fatty acid metabolism

  Others

  459,853

LbHap2

CCAAT binding complex, subunit B

  708,105

LbHap3

CCAAT binding complex, subunit C

  694,786

LbHap5

CCAAT binding complex, subunit E

  574,778

LbHapX

CCAAT binding complex, subunit X; iron-responsive factor

  709,764 + 617,537

LbUrbs1

Negative Regulator of siderophore biosynthesis genes

  293,949

LbSfu1

Negative Regulator of Iron Uptake

  709,867

LbIec1

Subunit of the Ino80 complex, involved in nucleotide metabolism and phosphate metabolism

  Stress and stimuli response

  459,072

LbAsg1

Regulator of stress response and drug resistance

  699,455

LbHsf1

Heat shock transcription factor

   665,554

LbYap1

Regulator of oxidative stress tolerance

  582,197 + 625,683

LbSkn7

Response to osmotic and oxidative stress

  379,257

LbPacC

Activator of alkaline-induced genes; repressor of acid-induced genes

  150,072

LbCrz1–1

Activator of genes involved in stress response

  636,734

LbCrz1–2

Activator of genes involved in stress response

  681,767

LbMSN4

Activator of genes involved in stress response

  607,158

LbZap1

Activator of zinc responsive genes

  652,780

LbHxl1

Unfolded protein response

  387,518

LbWC1

Light response and circadian rhythm regulator

  306,097

LbWC2

Light response and circadian rhythm regulator

  636,228

LbMbf1

Transcriptional coactivator involved in DNA replication stress and GCN4-dependent transcriptional activation

  442,607

LbXbp1

Stress-induced transcriptional repressor during mitosis, and late in meiosis

Others

 301,089

LbBdp1

Transcription factor, involved in transcription of genes encoding tRNAs, 5S rRNA, U6 snRNA, and other small RNAs

 619,068

LbFhl1

Regulator of ribosomal protein (RP) transcription

 636,637

LbIIIA

Transcription factor, required for transcription of 5S rRNA

 149,540

LbNCB1 subunit alpha

Subunit of a heterodimeric NC2 transcription regulator complex

 660,430

LbNCB2 subunit beta

Subunit of a heterodimeric NC2 transcription regulator complex

 571,647

LbSql1

General transcriptional co-repressor

 667,862

LbAtf2

 

 309,497

LbDpb4

Subunit of the chromatin remodeling complex ISW2

 294,914

LbAbf2

Mitochondrial nucleoid protein

 474,585

LbNhp6B

Activator of the RNA polymerase III SNR6 gene

 625,238

LbPli1

SUMO E3 ligase involved in centromere and telomere maintenance

 669,147

LbSet3

Histone deacetylase involved in the regulation of cytokinesis

 702,907

LbSwc4

Subunit of the chromatin-remodeling complexes NuA4 and SWR1

 611,756

LbCdc39

Subunit of the CCR4-NOT1 core complex

 686,238

LbSnu66

Subunit of the U4/U6.U5 snRNP complex

  1. aTFs retrieved from and functionally validated by the TAT screen are in bold. See also Fig. 8
  2. b L. bicolor transcription factors were grouped into major functional classes based on homology with functionally characterized TFs from other fungi; gene names were derived from those of the corresponding homologs (see Additional file 1: Table S1 for further sequence information)
  3. cSpecific putative function of L. bicolor TFs as deduced from the known function of their characterized homologs