SCUBE3

This gene encodes a member of the signal peptide, complement subcomponents C1r/C1s, Uegf, bone morphogenetic protein-1 and epidermal growth factor-like domain containing protein family. Overexpression of this gene in human embryonic kidney cells results in secretion of a glycosylated form of the protein that forms oligomers and tethers to the cell surface. This gene is upregulated in lung cancer tumor tissue compared to healthy tissue and is associated with loss of the epithelial marker E-cadherin and with increased expression of vimentin, a mesenchymal marker. In addition, the protein encoded by this gene is a transforming growth factor beta receptor ligand, and when secreted by cancer cells, it can be cleaved in vitro to release the N-terminal epidermal growth factor-like repeat domain and the C-terminal complement subcomponents C1r/C1s domain. Both the full length protein and C-terminal fragment can bind to the transforming growth factor beta type II receptor to promote the epithelial-mesenchymal transition and tumor angiogenesis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014]

Description

Signal peptide, CUB domain and EGF like domain containing 3

Tissue specificity

Tissue enriched (thyroid gland)

Subcell location

Plasma membrane

Predicted location

Secreted to blood

Protein family

Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Predicted secreted proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)

Chromosome

6 (35213956 - 35253079)

Ensembl ID

ENSG00000146197  (ver. 103.38)

Orthologs

Mouse Scube3: ENSMUSG00000038677

UniProt

Q8IX30

neXtProt

NX_Q8IX30

Human splice variants
Mouse splice variants

Protein structure