Tbio RSPO1 R-spondin-1

Protein Summary

Description

Activator of the canonical Wnt signaling pathway by acting as a ligand for LGR4-6 receptors (PubMed:29769720). Upon binding to LGR4-6 (LGR4, LGR5 or LGR6), LGR4-6 associate with phosphorylated LRP6 and frizzled receptors that are activated by extracellular Wnt receptors, triggering the canonical Wnt signaling pathway to increase expression of target genes. Also regulates the canonical Wnt/beta-catenin-dependent pathway and non-canonical Wnt signaling by acting as an inhibitor of ZNRF3, an important regulator of the Wnt signaling pathway. Acts as a ligand for frizzled FZD8 and LRP6. May negatively regulate the TGF-beta pathway. Has a essential roles in ovary determination. Regulates Wnt signaling by antagonizing DKK1/KREM1-mediated internalization of LRP6 through an interaction with KREM1 (PubMed:17804805). This gene encodes a secreted activator protein with two cysteine-rich, furin-like domains and one thrombospondin type 1 domain. The encoded protein is a ligand for leucine-rich repeat-containing G-protein coupled receptors (LGR proteins) and positively regulates the Wnt signaling pathway. In mice, the protein induces the rapid onset of crypt cell proliferation and increases intestinal epithelial healing, providing a protective effect against chemotherapy-induced adverse effects. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2014]

Uniprot Accession IDs

• Q2MKA7
• A2A420
• Q0H8S6
• Q14C72
• Q5T0F2
• Q8N7L5

Gene Name

• RSPO1

Ensembl ID

• ENST00000356545
• ENSP00000348944
• ENSG00000169218
• ENST00000401068
• ENSP00000383846
• ENST00000612451
• ENSP00000479832
• ENST00000615459
• ENSP00000481178

Symbol

• RSPO
• CRISTIN3

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
tissue	0.61
cell line	0.6
gene perturbation	0.6
cell type or tissue	0.57
PubMedID	0.57

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 262.61   (req: < 5)

Gene RIFs: 40   (req: <= 3)

Antibodies: 257   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 262.61   (req: >= 5)

Gene RIFs: 40   (req: > 3)

Antibodies: 257   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 9

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0