PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Transcription Factor Information
Basic Information | Signature Domain | Sequence | 
Basic Information? help Back to Top
Taxonomic ID
Taxonomic Lineage
cellular organisms; Eukaryota; Viridiplantae; Streptophyta; Streptophytina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; PACMAD clade; Chloridoideae; Zoysieae; Zoysiinae; Zoysia
Family bHLH
Protein Properties Length: 212aa    MW: 23031.1 Da    PI: 6.1488
Description bHLH family protein
Gene Model
Gene Model ID Type Source Coding Sequence Nucleic Acid
Signature Domain? help Back to Top
Signature Domain
No. Domain Score E-value Start End HMM Start HMM End
                           HLH   9 ErrRRdriNsafeeLrellPkaskapskKlsKaeiLekAveYIksL 54 
                                    r RR+ri ++f  Lr+l+P       +K++ +++L +A++Y+k L  61 ARERRHRISDRFRVLRSLVPGG-----GKMDTVSMLDQAIRYVKFL 101
                                   699*****************87.....8****************98 PP

Protein Features ? help Back to Top
3D Structure
Database Entry ID E-value Start End InterPro ID Description
PROSITE profilePS5088815.29452101IPR011598Myc-type, basic helix-loop-helix (bHLH) domain
SuperFamilySSF474592.62E-1457114IPR011598Myc-type, basic helix-loop-helix (bHLH) domain
Gene3DG3DSA:, basic helix-loop-helix (bHLH) domain
CDDcd000834.58E-1358106No hitNo description
SMARTSM003532.6E-1258107IPR011598Myc-type, basic helix-loop-helix (bHLH) domain
PfamPF000106.2E-761101IPR011598Myc-type, basic helix-loop-helix (bHLH) domain
Gene Ontology ? help Back to Top
GO Term GO Category GO Description
GO:0046983Molecular Functionprotein dimerization activity
Sequence ? help Back to Top
Protein Sequence    Length: 212 aa     Download sequence    Send to blast
Functional Description ? help Back to Top
Source Description
UniProtTranscription factor that seems to regulate organogenesis in postembryonic development. Involved in the regulation of shoot branching by controlling axillary meristem initiation. Functions in association with LAX2 to regulate the process of AM formation. Possesses transactivation activity in yeast (PubMed:21963665). {ECO:0000269|PubMed:13130077, ECO:0000269|PubMed:21963665}.
Cis-element ? help Back to Top
Regulation -- PlantRegMap ? help Back to Top
Source Upstream Regulator Target Gene
Annotation -- Nucleotide ? help Back to Top
Source Hit ID E-value Description
GenBankAY8860111e-72AY886011.1 Oryza sativa (japonica cultivar-group) isolate LAX10 LAX gene, partial cds.
GenBankAY8860121e-72AY886012.1 Oryza sativa (japonica cultivar-group) isolate LAX11 LAX gene, partial cds.
GenBankAY8860131e-72AY886013.1 Oryza sativa (japonica cultivar-group) isolate LAX12 LAX gene, partial cds.
GenBankAY8860141e-72AY886014.1 Oryza sativa (japonica cultivar-group) isolate LAX13 LAX gene, partial cds.
GenBankAY8860151e-72AY886015.1 Oryza sativa (japonica cultivar-group) isolate LAX14 LAX gene, partial cds.
GenBankAY8860161e-72AY886016.1 Oryza sativa (indica cultivar-group) isolate LAX15 LAX gene, partial cds.
GenBankAY8860171e-72AY886017.1 Oryza sativa (indica cultivar-group) isolate LAX16 LAX gene, partial cds.
GenBankAY8860181e-72AY886018.1 Oryza sativa (indica cultivar-group) isolate LAX18 LAX gene, partial cds.
GenBankAY8860191e-72AY886019.1 Oryza sativa (indica cultivar-group) isolate LAX19 LAX gene, partial cds.
GenBankAY8860201e-72AY886020.1 Oryza sativa (indica cultivar-group) isolate LAX20 LAX gene, partial cds.
GenBankAY8860211e-72AY886021.1 Oryza sativa (indica cultivar-group) isolate LAX21 LAX gene, partial cds.
GenBankAY8860221e-72AY886022.1 Oryza sativa (indica cultivar-group) isolate LAX22 LAX gene, partial cds.
GenBankAY8860231e-72AY886023.1 Oryza sativa (indica cultivar-group) isolate LAX23 LAX gene, partial cds.
GenBankAY8860241e-72AY886024.1 Oryza sativa (indica cultivar-group) isolate LAX24 LAX gene, partial cds.
GenBankAY8860251e-72AY886025.1 Oryza rufipogon isolate LAX26 LAX gene, partial cds.
GenBankAY8860261e-72AY886026.1 Oryza rufipogon isolate LAX27 LAX gene, partial cds.
GenBankAY8860271e-72AY886027.1 Oryza rufipogon isolate LAX28 LAX gene, partial cds.
GenBankAY8860301e-72AY886030.1 Oryza rufipogon isolate LAX32 LAX gene, partial cds.
GenBankCP0126091e-72CP012609.1 Oryza sativa Indica Group cultivar RP Bio-226 chromosome 1 sequence.
GenBankJN2108961e-72JN210896.1 Oryza sativa Japonica Group cultivar YUM111 LAX protein (lax) mRNA, complete cds.
Annotation -- Protein ? help Back to Top
Source Hit ID E-value Description
RefseqNP_001105271.13e-70barren stalk 1
RefseqXP_020406751.13e-70transcription factor LAX PANICLE 1
SwissprotQ7XAQ61e-53LAX1_ORYSJ; Transcription factor LAX PANICLE 1
TrEMBLQ5MP566e-69Q5MP56_MAIZE; BHLH transcription factor
STRINGGRMZM2G397518_P011e-69(Zea mays)
Orthologous Group ? help Back to Top
LineageOrthologous Group IDTaxa NumberGene Number
Best hit in Arabidopsis thaliana ? help Back to Top
Hit ID E-value Description
Publications ? help Back to Top
  1. Kaur P, et al.
    Genes controlling plant growth habit in Leymus (Triticeae): maize barren stalk1 (ba1), rice lax panicle, and wheat tiller inhibition (tin3) genes as possible candidates.
    Funct. Integr. Genomics, 2008. 8(4): p. 375-86
  2. Oikawa T,Kyozuka J
    Two-Step Regulation of LAX PANICLE1 Protein Accumulation in Axillary Meristem Formation in Rice.
    Plant Cell, 2009. 21(4): p. 1095-108
  3. Woods DP,Hope CL,Malcomber ST
    Phylogenomic analyses of the BARREN STALK1/LAX PANICLE1 (BA1/LAX1) genes and evidence for their roles during axillary meristem development.
    Mol. Biol. Evol., 2011. 28(7): p. 2147-59
  4. Tabuchi H, et al.
    LAX PANICLE2 of rice encodes a novel nuclear protein and regulates the formation of axillary meristems.
    Plant Cell, 2011. 23(9): p. 3276-87
  5. Gao ZY, et al.
    Dissecting yield-associated loci in super hybrid rice by resequencing recombinant inbred lines and improving parental genome sequences.
    Proc. Natl. Acad. Sci. U.S.A., 2013. 110(35): p. 14492-7
  6. Deshpande GM,Ramakrishna K,Chongloi GL,Vijayraghavan U
    Functions for rice RFL in vegetative axillary meristem specification and outgrowth.
    J. Exp. Bot., 2015. 66(9): p. 2773-84
  7. Sekhar S, et al.
    Spikelet-specific variation in ethylene production and constitutive expression of ethylene receptors and signal transducers during grain filling of compact- and lax-panicle rice (Oryza sativa) cultivars.
    J. Plant Physiol., 2015. 179: p. 21-34
  8. Mohanta TK,Mohanta N,Parida P,Bae H
    Mitogen Activated Protein Kinase (MPK) Interacts With Auxin Influx Carrier (OsAux/LAX1) Involved in Auxin Signaling in Plant.
    Biol Proced Online, 2015. 17: p. 13
  9. Sekhar S, et al.
    Identification and Characterization of Differentially Expressed Genes in Inferior and Superior Spikelets of Rice Cultivars with Contrasting Panicle-Compactness and Grain-Filling Properties.
    PLoS ONE, 2015. 10(12): p. e0145749
  10. Das K, et al.
    Comparative proteomics of the superior and inferior spikelets at the early grain filling stage in rice cultivars contrast for panicle compactness and ethylene evolution.
    J. Plant Physiol., 2016. 202: p. 65-74