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Function

DNA-binding transcriptional factor that plays a role in a broad range of cellular and developmental processes such as eye, bones, cardiovascular, kidney and skin development (PubMed:11782474, PubMed:14506133, PubMed:14578375, PubMed:15277473, PubMed:15299087, PubMed:15684392, PubMed:16449236, PubMed:16492674, PubMed:17210863, PubMed:19279310, PubMed:19793056, PubMed:25786029, PubMed:27804176, PubMed:27907090). Acts either as a transcriptional activator or repressor (PubMed:11782474). Binds to the consensus binding site 5'-[G/C][A/T]AAA[T/C]AA[A/C]-3' in promoter of target genes (PubMed:11782474, PubMed:12533514, PubMed:14506133, PubMed:19793056, PubMed:27804176, PubMed:7957066). Upon DNA-binding, promotes DNA bending (PubMed:14506133, PubMed:7957066). Acts as a transcriptional coactivator (PubMed:26565916). Stimulates Indian hedgehog (Ihh)-induced target gene expression mediated by the transcription factor GLI2, and hence regulates endochondral ossification (By similarity). Acts also as a transcriptional coregulator by increasing DNA-binding capacity of GLI2 in breast cancer cells (PubMed:26565916). Regulates FOXO1 through binding to a conserved element, 5'-GTAAACAAA-3' in its promoter region, implicating FOXC1 as an important regulator of cell viability and resistance to oxidative stress in the eye (PubMed:17993506). Cooperates with transcription factor FOXC2 in regulating expression of genes that maintain podocyte integrity (By similarity). Promotes cell growth inhibition by stopping the cell cycle in the G1 phase through TGFB1-mediated signals (PubMed:12408963). Involved in epithelial-mesenchymal transition (EMT) induction by increasing cell proliferation, migration and invasion (PubMed:20406990, PubMed:22991501). Involved in chemokine CXCL12-induced endothelial cell migration through the control of CXCR4 expression (By similarity). Plays a role in the gene regulatory network essential for epidermal keratinocyte terminal differentiation (PubMed:27907090). Essential developmental transcriptional factor required for mesoderm-derived tissues, such as the somites, skin, bone and cartilage. Positively regulates CXCL12 and stem cell factor expression in bone marrow mesenchymal progenitor cells, and hence plays a role in the development and maintenance of mesenchymal niches for haematopoietic stem and progenitor cells (HSPC). Plays a role in corneal transparency by preventing both blood vessel and lymphatic vessel growth during embryonic development in a VEGF-dependent manner. Involved in chemokine CXCL12-induced endothelial cell migration through the control of CXCR4 expression (By similarity). May function as a tumor suppressor (PubMed:12408963).

Involvement in disease

Axenfeld-Rieger syndrome 3

RIEG3

An autosomal dominant disorder of morphogenesis that results in abnormal development of the anterior segment of the eye, and results in blindness from glaucoma in approximately 50% of affected individuals. Features include posterior corneal embryotoxon, prominent Schwalbe line and iris adhesion to the Schwalbe line, hypertelorism, hypodontia, sensorineural deafness, redundant periumbilical skin, and cardiovascular defects such as patent ductus arteriosus and atrial septal defect. When associated with tooth anomalies, the disorder is known as Rieger syndrome.

None

The disease is caused by variants affecting the gene represented in this entry.

Anterior segment dysgenesis 3

ASGD3

A form of anterior segment dysgenesis, a group of defects affecting anterior structures of the eye including cornea, iris, lens, trabecular meshwork, and Schlemm canal. Anterior segment dysgeneses result from abnormal migration or differentiation of the neural crest derived mesenchymal cells that give rise to components of the anterior chamber during eye development. Different anterior segment anomalies may exist alone or in combination, including iris hypoplasia, enlarged or reduced corneal diameter, corneal vascularization and opacity, posterior embryotoxon, corectopia, polycoria, abnormal iridocorneal angle, ectopia lentis, and anterior synechiae between the iris and posterior corneal surface. Clinical conditions falling within the phenotypic spectrum of anterior segment dysgeneses include aniridia, Axenfeld anomaly, Reiger anomaly/syndrome, Peters anomaly, and iridogoniodysgenesis. ASGD3 inheritance is autosomal dominant.

None

The disease is caused by variants affecting the gene represented in this entry.

Post-translational modifications

Phosphorylated (PubMed:11782474, PubMed:19279310, PubMed:25786029). Phosphorylated on Ser-272 in response to epidermal growth factor (EGF) in a ERK1/2 MAPK-dependent signaling pathway; phosphorylation contributes to its protein stability and transcriptional activity (PubMed:16492674).

Sumoylated preferentially with SUMO2 or SUMO3 (PubMed:22493429). Desumoylated by SENP2 (PubMed:22493429).

Ubiquitinated, leading to its proteasomal degradation (PubMed:16492674).

Tissue specificity

Expressed in keratinocytes of epidermis and hair follicle (PubMed:27907090). Expressed strongly in microvascular invasion (MVI) formation, basal-like breast cancer (BLBC) and hepatocellular tumors (PubMed:20406990, PubMed:22991501). Expressed in breast cancers (at protein level) (PubMed:26565916). Expressed in hematopoietic cells (PubMed:8499623).

Cellular localization

  • Nucleus
  • Colocalizes with PITX2 isoform 3 in the nucleus at subnuclear chromatine regions (PubMed:16449236). Colocalizes with CBX5 to a heterochromatin-rich region of the nucleus (PubMed:15684392). Colocalizes with GLI2 in the nucleus (By similarity).

Alternative names

FKHL7, FREAC3, FOXC1, Forkhead box protein C1, Forkhead-related protein FKHL7, Forkhead-related transcription factor 3, FREAC-3

Target type

Proteins

Primary research area

Epigenetics

Other research areas

  • Immuno-oncology

Molecular weight

56789Da

We found 7 products in 1 category

Primary Antibodies

Search our catalogue for 'FOXC1' (7)

Products

ab227977

Anti-FOXC1 antibody [EPR20685]

Recombinant
RabMAb
KO Validated

ab223850

Anti-FOXC1 antibody [EPR20678]

Recombinant
RabMAb

ab230159

Anti-FOXC1 antibody [EPR20685] - BSA and Azide free

Recombinant
RabMAb
KO Validated