Article · Wikipedia archive · Last revised Jun 5, 2026

ROBO1

Roundabout homolog 1 is a protein that in humans is encoded by the ROBO1 gene.

Last revised
Jun 5, 2026
Read time
≈ 6 min
Length
1,349 w
Citations
15
Source
ROBO1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesROBO1, DUTT1, SAX3, roundabout guidance receptor 1
External IDsOMIM: 602430; MGI: 1274781; HomoloGene: 2206; GeneCards: ROBO1; OMA:ROBO1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001145845
NM_002941
NM_133631

NM_019413

RefSeq (protein)

NP_001139317
NP_002932
NP_598334

NP_062286

Location (UCSC)Chr 3: 78.6 – 79.77 MbChr 16: 72.11 – 72.84 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

Roundabout homolog 1 is a protein that in humans is encoded by the ROBO1 gene.567

Function

Bilateral symmetric nervous systems have special midline structures that establish a partition between the two mirror image halves. Some axons project toward and across the midline in response to long-range chemoattractants emanating from the midline. The protein encoded by ROBO1 is structurally similar to a Drosophila integral membrane protein which is encoded by the Drosophila roundabout gene (a member of the immunoglobulin gene superfamily) and is both an axon guidance receptor and a cell adhesion receptor, known to be involved in the decision by axons to cross the central nervous system midline. Two transcript variants encoding different isoforms have been found for ROBO1.7

Clinical significance

ROBO1 was implicated in a communication disorder based on a Finnish pedigree with severe dyslexia. Analyses revealed a translocation had occurred disrupting ROBO1.8 Study of the phonological memory component of the language acquisition system suggests that ROBO1 polymorphisms are associated with functioning in this system.9 The gene is thought to be related to the brain's ability to represent quantities, and is correlated with better math scores of young children in one limited study.10

References

References

  1. GRCh38: Ensembl release 89: ENSG00000169855Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000022883Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Kidd T, Brose K, Mitchell KJ, Fetter RD, Tessier-Lavigne M, Goodman CS, Tear G (Feb 1998). "Roundabout controls axon crossing of the CNS midline and defines a novel subfamily of evolutionarily conserved guidance receptors". Cell. 92 (2): 205–15. doi:10.1016/S0092-8674(00)80915-0. PMID 9458045. S2CID 2036419.
  6. Sundaresan V, Roberts I, Bateman A, Bankier A, Sheppard M, Hobbs C, Xiong J, Minna J, Latif F, Lerman M, Rabbitts P (Aug 1998). "The DUTT1 gene, a novel NCAM family member is expressed in developing murine neural tissues and has an unusually broad pattern of expression". Mol Cell Neurosci. 11 (1–2): 29–35. doi:10.1006/mcne.1998.0672. PMID 9608531. S2CID 7168171.
  7. "Entrez Gene: ROBO1 roundabout, axon guidance receptor, homolog 1 (Drosophila)".
  8. Hannula-Jouppi K, Kaminen-Ahola N, Taipale M, Eklund R, Nopola-Hemmi J, Kääriäinen H, Kere J (October 2005). "The axon guidance receptor gene ROBO1 is a candidate gene for developmental dyslexia". PLOS Genet. 1 (4): e50. doi:10.1371/journal.pgen.0010050. PMC 1270007. PMID 16254601.
  9. Bates TC, Luciano M, Medland SE, Montgomery GW, Wright MJ, Martin NG (January 2011). "Genetic variance in a component of the language acquisition device: ROBO1 polymorphisms associated with phonological buffer deficits". Behav. Genet. 41 (1): 50–7. doi:10.1007/s10519-010-9402-9. PMID 20949370. S2CID 13129473.
  10. "How genetic variation gives rise to differences in mathematical ability".
Further reading

Further reading