Tbio ROBO3 Roundabout homolog 3

Protein Summary

Description

Thought to be involved during neural development in axonal navigation at the ventral midline of the neural tube. In spinal chord development plays a role in guiding commissural axons probably by preventing premature sensitivity to Slit proteins thus inhibiting Slit signaling through ROBO1 (By similarity). Required for hindbrain axon midline crossing. This gene is a member of the Roundabout (ROBO) gene family that controls neurite outgrowth, growth cone guidance, and axon fasciculation. ROBO proteins are a subfamily of the immunoglobulin transmembrane receptor superfamily. SLIT proteins 1-3, a family of secreted chemorepellants, are ligands for ROBO proteins and SLIT/ROBO interactions regulate myogenesis, leukocyte migration, kidney morphogenesis, angiogenesis, and vasculogenesis in addition to neurogenesis. This gene, ROBO3, has a putative extracellular domain with five immunoglobulin (Ig)-like loops and three fibronectin (Fn) type III motifs, a transmembrane segment, and a cytoplasmic tail with three conserved signaling motifs: CC0, CC2, and CC3 (CC for conserved cytoplasmic). Unlike other ROBO family members, ROBO3 lacks motif CC1. The ROBO3 gene regulates axonal navigation at the ventral midline of the neural tube. In mouse, loss of Robo3 results in a complete failure of commissural axons to cross the midline throughout the spinal cord and the hindbrain. Mutations ROBO3 result in horizontal gaze palsy with progressive scoliosis (HGPPS); an autosomal recessive disorder characterized by congenital absence of horizontal gaze, progressive scoliosis, and failure of the corticospinal and somatosensory axon tracts to cross the midline in the medulla. Alternative transcript variants have been described but have not been experimentally validated. [provided by RefSeq, Dec 2009]

Uniprot Accession IDs

• Q96MS0

Gene Name

• ROBO3

Ensembl ID

• ENST00000397801
• ENSP00000380903
• ENSG00000154134

Symbol

• HGPS
• RIG1
• HGPPS
• RBIG1
• HGPPS1

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
tissue sample	0.74
protein domain	0.73
PubMedID	0.59
cell line	0.55
virus perturbation	0.55

Protein Classes

PANTHER Classes

Protein / Transmembrane Receptor Regulatory/adaptor Protein / Roundabout Homolog 3

DTO Classes

Protein / Receptor / Roundabout Homolog 3

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: 112.02   (req: < 5)

Gene RIFs: 32   (req: <= 3)

Antibodies: 180   (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: 112.02   (req: >= 5)

Gene RIFs: 32   (req: > 3)

Antibodies: 180   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 8

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