LEF1
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 2LEF, 3OUW, 3OUX
Identifiers
Aliases	LEF1, LEF-1, TCF10, TCF1ALPHA, TCF7L3, lymphoid enhancer binding factor 1
External IDs	MGI: 96770 HomoloGene: 7813 GeneCards: LEF1
Gene location (Human) Chr. Chromosome 4 (human)[1] Band 4q25 Start 108,047,545 bp[1] End 108,168,956 bp[1]
Gene location (Mouse) Chr. Chromosome 3 (mouse)[2] Band 3 G3|3 60.78 cM Start 130,904,120 bp[2] End 131,018,005 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in thymus lymph node tibia oocyte secondary oocyte blood appendix endometrium caput epididymis sperm Top expressed in thymus maxillary prominence blood hair follicle dental papilla secondary oocyte primitive streak endocardial cushion spermatocyte lateral geniculate nucleus More reference expression data BioGPS More reference expression data
Gene ontology Molecular function DNA-binding transcription factor activity DNA-binding transcription activator activity, RNA polymerase II-specific histone deacetylase binding armadillo repeat domain binding estrogen receptor binding RNA polymerase II transcription regulatory region sequence-specific DNA binding transcription factor binding estrogen receptor activity gamma-catenin binding histone binding C2H2 zinc finger domain binding chromatin binding cysteine-type endopeptidase inhibitor activity involved in apoptotic process protein binding DNA binding, bending DNA binding sequence-specific DNA binding transcription factor activity, RNA polymerase II distal enhancer sequence-specific binding beta-catenin binding RNA polymerase II cis-regulatory region sequence-specific DNA binding DNA-binding transcription factor activity, RNA polymerase II-specific Cellular component cytoplasm nucleus transcription regulator complex beta-catenin-TCF complex nucleoplasm protein-DNA complex Biological process somitogenesis tongue development paraxial mesoderm formation regulation of transcription by RNA polymerase II negative regulation of DNA binding T cell receptor V(D)J recombination transcription by RNA polymerase II cellular response to cytokine stimulus mammary gland development negative regulation of interleukin-13 production odontogenesis of dentin-containing tooth apoptotic process involved in blood vessel morphogenesis cell chemotaxis negative regulation of canonical Wnt signaling pathway face morphogenesis neutrophil differentiation negative regulation of interleukin-5 production regulation of transcription, DNA-templated dentate gyrus development apoptotic process involved in morphogenesis transcription, DNA-templated positive regulation of transcription, DNA-templated positive regulation of cell growth regulation of Wnt signaling pathway embryonic limb morphogenesis hypothalamus development branching involved in blood vessel morphogenesis trachea gland development regulation of striated muscle tissue development positive regulation of cell-cell adhesion forebrain neuroblast division eye pigmentation negative regulation of apoptotic process sprouting angiogenesis negative regulation of transcription by RNA polymerase II positive regulation of epithelial to mesenchymal transition BMP signaling pathway positive regulation of cell cycle process osteoblast differentiation histone H3 acetylation formation of radial glial scaffolds positive regulation of granulocyte differentiation alpha-beta T cell differentiation canonical Wnt signaling pathway negative regulation of transcription, DNA-templated sensory perception of taste cellular response to interleukin-4 negative regulation of cysteine-type endopeptidase activity involved in apoptotic process cell development negative regulation of cell-cell adhesion negative regulation of interleukin-4 production negative regulation of striated muscle tissue development positive regulation of cell migration Wnt signaling pathway T-helper 1 cell differentiation positive regulation of cell proliferation in bone marrow anatomical structure regression chorio-allantoic fusion negative regulation of apoptotic process in bone marrow cell B cell proliferation positive regulation of gene expression vasculature development forebrain radial glial cell differentiation neural crest cell migration positive regulation of cell population proliferation forebrain neuron differentiation histone H4 acetylation hippocampus development positive regulation of transcription by RNA polymerase II Wnt signaling pathway, calcium modulating pathway steroid hormone mediated signaling pathway odontoblast differentiation beta-catenin-TCF complex assembly epithelial to mesenchymal transition regulation of cell-cell adhesion secondary palate development Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 51176 16842 Ensembl ENSG00000138795 ENSMUSG00000027985 UniProt Q9UJU2 Q659G9 P27782 RefSeq (mRNA) NM_001130713 NM_001130714 NM_001166119 NM_016269 NM_001276402 NM_001276403 NM_010703 NM_001379059 NM_001379060 NM_001379061 NM_001379062 RefSeq (protein) NP_001124185 NP_001124186 NP_001159591 NP_057353 NP_057353.1 NP_001263331 NP_001263332 NP_034833 NP_001365988 NP_001365989 NP_001365990 NP_001365991 Location (UCSC) Chr 4: 108.05 – 108.17 Mb Chr 3: 130.9 – 131.02 Mb PubMed search [3] [4]
Wikidata
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Lymphoid enhancer-binding factor 1 (LEF1) is a protein that in humans is encoded by the LEF1 gene.^[5] It is a member of T cell factor/lymphoid enhancer factor (TCF/LEF) family.

Function

Lymphoid enhancer-binding factor-1 (LEF1) is a 48-kD nuclear protein that is expressed in pre-B and T cells. It binds to a functionally important site in the T-cell receptor-alpha (TCRA) enhancer and confers maximal enhancer activity. LEF1 belongs to a family of regulatory proteins that share homology with high mobility group protein-1 (HMG1).^[6]

Clinical significance

LEF1 is highly overexpressed and associated with disease progression and poor prognosis in B-cell chronic lymphocytic leukemia^[7] and other kinds of malignancies like colorectal cancer.^[8] It is also a promising potential drug target.^[9]

Interactions

Lymphoid enhancer-binding factor 1 has been shown to interact with:

• ALX4,^[10]
• AML-1,^[11]
• Catenin beta-1/β-catenin/CTNNB1,^{[12][13][14][15]} including transgenically,^[16]
• EP300,^[17]
• MITF^[18]
• PIAS4,^[19]
• SMAD2,^[15] and
• SMAD3.^[15]