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Norrie disease (pseudoglioma)
Available structures
PDB Ortholog search: PDBe, RCSB
Symbols NDP ; EVR2; FEVR; ND
External IDs OMIM300658 MGI102570 HomoloGene225 GeneCards: NDP Gene
RNA expression pattern
PBB GE NDP 206022 at tn.png
More reference expression data
Species Human Mouse
Entrez 4693 17986
Ensembl ENSG00000124479 ENSMUSG00000040138
UniProt Q00604 P48744
RefSeq (mRNA) NM_000266 NM_010883
RefSeq (protein) NP_000257 NP_035013
Location (UCSC) Chr X:
43.81 – 43.83 Mb
Chr X:
16.89 – 16.91 Mb
PubMed search [1] [2]

Norrin, also known as Norrie disease protein or X-linked exudative vitreoretinopathy 2 protein (EVR2) is a protein that in humans is encoded by the NDP gene.[1] Mutations in the NDP gene are associated with the Norrie disease.


Signaling induced the protein Norrin regulates vascular development of vertebrate retina and controls important blood vessels in the ear.[1]

Clinical significance[edit]

NDP is the genetic locus identified as harboring mutations that result in Norrie disease. Norrie disease is a rare genetic disorder characterized by bilateral congenital blindness that is caused by a vascularized mass behind each lens due to a maldeveloped retina (pseudoglioma).[1]


External links[edit]

Further reading[edit]

  • Berger W, van de Pol D, Warburg M, et al. (1993). "Mutations in the candidate gene for Norrie disease.". Hum. Mol. Genet. 1 (7): 461–5. doi:10.1093/hmg/1.7.461. PMID 1307245. 
  • Black G, Redmond RM (1995). "The molecular biology of Norrie's disease.". Eye (London, England) 8 (5): 491–6. doi:10.1038/eye.1994.124. PMID 7835440. 
  • Masckauchán TN, Kitajewski J (2007). "Wnt/Frizzled signaling in the vasculature: new angiogenic factors in sight.". Physiology (Bethesda, Md.) 21: 181–8. doi:10.1152/physiol.00058.2005. PMID 16714476. 
  • Berger W, Meindl A, van de Pol TJ, et al. (1993). "Isolation of a candidate gene for Norrie disease by positional cloning.". Nat. Genet. 1 (3): 199–203. doi:10.1038/ng0692-199. PMID 1303235. 
  • Chen ZY, Hendriks RW, Jobling MA, et al. (1993). "Isolation and characterization of a candidate gene for Norrie disease.". Nat. Genet. 1 (3): 204–8. doi:10.1038/ng0692-204. PMID 1303236. 
  • Berger W, Meindl A, van de Pol TJ, et al. (1993). "Isolation of a candidate gene for Norrie disease by positional cloning.". Nat. Genet. 2 (1): 84. doi:10.1038/ng0992-84. PMID 1303256. 
  • Meindl A, Berger W, Meitinger T, et al. (1993). "Norrie disease is caused by mutations in an extracellular protein resembling C-terminal globular domain of mucins.". Nat. Genet. 2 (2): 139–43. doi:10.1038/ng1092-139. PMID 1303264. 
  • Shastry BS, Hejtmancik JF, Plager DA, et al. (1995). "Linkage and candidate gene analysis of X-linked familial exudative vitreoretinopathy.". Genomics 27 (2): 341–4. doi:10.1006/geno.1995.1052. PMID 7558002. 
  • Schuback DE, Chen ZY, Craig IW, et al. (1995). "Mutations in the Norrie disease gene.". Hum. Mutat. 5 (4): 285–92. doi:10.1002/humu.1380050403. PMID 7627181. 
  • Meindl A, Lorenz B, Achatz H, et al. (1995). "Missense mutations in the NDP gene in patients with a less severe course of Norrie disease.". Hum. Mol. Genet. 4 (3): 489–90. doi:10.1093/hmg/4.3.489. PMID 7795608. 
  • Joos KM, Kimura AE, Vandenburgh K, et al. (1995). "Ocular findings associated with a Cys39Arg mutation in the Norrie disease gene.". Arch. Ophthalmol. 112 (12): 1574–9. doi:10.1001/archopht.1994.01090240080029. PMID 7993212. 
  • Fuchs S, Xu SY, Caballero M, et al. (1994). "A missense point mutation (Leu13Arg) of the Norrie disease gene in a large Cuban kindred with Norrie disease.". Hum. Mol. Genet. 3 (4): 655–6. doi:10.1093/hmg/3.4.655. PMID 8069314. 
  • Wong F, Goldberg MF, Hao Y (1993). "Identification of a nonsense mutation at codon 128 of the Norrie's disease gene in a male infant.". Arch. Ophthalmol. 111 (11): 1553–7. doi:10.1001/archopht.1993.01090110119036. PMID 8240113. 
  • Chen ZY, Battinelli EM, Fielder A, et al. (1994). "A mutation in the Norrie disease gene (NDP) associated with X-linked familial exudative vitreoretinopathy.". Nat. Genet. 5 (2): 180–3. doi:10.1038/ng1093-180. PMID 8252044. 
  • Chen ZY, Battinelli EM, Woodruff G, et al. (1994). "Characterization of a mutation within the NDP gene in a family with a manifesting female carrier.". Hum. Mol. Genet. 2 (10): 1727–9. doi:10.1093/hmg/2.10.1727. PMID 8268931. 
  • Meitinger T, Meindl A, Bork P, et al. (1994). "Molecular modelling of the Norrie disease protein predicts a cystine knot growth factor tertiary structure.". Nat. Genet. 5 (4): 376–80. doi:10.1038/ng1293-376. PMID 8298646. 
  • Strasberg P, Liede HA, Stein T, et al. (1996). "A novel mutation in the Norrie disease gene predicted to disrupt the cystine knot growth factor motif.". Hum. Mol. Genet. 4 (11): 2179–80. doi:10.1093/hmg/4.11.2179. PMID 8589700. 
  • Johnson K, Mintz-Hittner HA, Conley YP, Ferrell RE (1997). "X-linked exudative vitreoretinopathy caused by an arginine to leucine substitution (R121L) in the Norrie disease protein.". Clin. Genet. 50 (3): 113–5. doi:10.1111/j.1399-0004.1996.tb02363.x. PMID 8946107.