J Pediatr Genet 2015; 04(01): 023-028
DOI: 10.1055/s-0035-1554977
Case Report
Georg Thieme Verlag KG Stuttgart · New York

Partial Deletion of Chromosome 1p31.1 Including only the Neuronal Growth Regulator 1 Gene in Two Siblings

Ann Genovese
1   Department of Psychiatry and Behavioral Sciences and Pediatrics, University of Kansas Medical Center, Kansas City, Kansas, United States
,
Devin M. Cox
1   Department of Psychiatry and Behavioral Sciences and Pediatrics, University of Kansas Medical Center, Kansas City, Kansas, United States
,
Merlin G. Butler
1   Department of Psychiatry and Behavioral Sciences and Pediatrics, University of Kansas Medical Center, Kansas City, Kansas, United States
› Author Affiliations
Further Information

Publication History

04 September 2014

31 December 2014

Publication Date:
17 July 2015 (online)

Abstract

We present two siblings with a partial deletion of chromosome 1p31.1 involving only the neuronal growth regulator 1 (NEGR1) gene. The siblings had a history of neuropsychiatric and behavioral problems, learning difficulties, hypotonia, mild aortic root dilatation, hypermobility, and scoliosis. This is the first clinical report of a microdeletion of chromosome 1p31.1 involving only the NEGR1 gene.

 
  • References

  • 1 Mircher C, Rethore MO, Lespinasse J, Fert-Ferrer S, Lundsteen C, Kirchoff M. Interstitial deletion of the short arm of chromosome 1: attempt to establish a clinical phenotype (46,XX,del (1)(p22p32)). Am J Med Genet A 2003; 118A (2) 176-179
  • 2 Callier P, Faivre L, Thauvin-Robinet C , et al. Array-CGH in a series of 30 patients with mental retardation, dysmorphic features, and congenital malformations detected an interstitial 1p22.2-p31.1 deletion in a patient with features overlapping the Goldenhar syndrome. Am J Med Genet A 2008; 146A (16) 2109-2115
  • 3 Chen CP, Su YN, Chen YY , et al. Chromosome 1p32-p31 deletion syndrome: prenatal diagnosis by array comparative genomic hybridization using uncultured amniocytes and association with NFIA haploinsufficiency, ventriculomegaly, corpus callosum hypogenesis, abnormal external genitalia, and intrauterine growth restriction. Taiwan J Obstet Gynecol 2011; 50 (3) 345-352
  • 4 Maegawa GHB, Poplawski NK, Andresen BS , et al. Interstitial deletion of 1p22.2p31.1 and medium-chain acyl-CoA dehydrogenase deficiency in a patient with global developmental delay. Am J Med Genet A 2008; 146A (12) 1581-1586
  • 5 Nava C, Keren B, Mignot C , et al. Prospective diagnostic analysis of copy number variants using SNP microarrays in individuals with autism spectrum disorders. Eur J Hum Genet 2014; 22 (1) 71-78
  • 6 Yıldırım Y, Kerem M, Köroğlu Ç, Tolun A. A homozygous 237-kb deletion at 1p31 identified as the locus for midline cleft of the upper and lower lip in a consanguineous family. Eur J Hum Genet 2014; 22 (3) 333-337
  • 7 Bene M, Duca-Marinescu A, Ioan D, Maximilian C. De novo interstitial deletion del(1)(p21p32). J Med Genet 1979; 16 (4) 323-327
  • 8 Petersen MB, Warburg M. Interstitial deletion 1p in a 30 year old woman. J Med Genet 1987; 24 (4) 229-231
  • 9 Lai MM, Robards MF, Berry AC, Fear CN, Hart C. Two cases of interstitial deletion 1p. J Med Genet 1991; 28 (2) 128-130
  • 10 Flicek P, Amode MR, Barrell D , et al. Ensembl 2014. Nucleic Acids Res 2014; 42 (Database issue) D749-D755
  • 11 Funatsu N, Miyata S, Kumanogoh H , et al. Characterization of a novel rat brain glycosylphosphatidylinositol-anchored protein (Kilon), a member of the IgLON cell adhesion molecule family. J Biol Chem 1999; 274 (12) 8224-8230
  • 12 Lee AW, Hengstler H, Schwald K , et al. Functional inactivation of the genome-wide association study obesity gene neuronal growth regulator 1 in mice causes a body mass phenotype. PLoS ONE 2012; 7 (7) e41537
  • 13 Boender AJ, van Gestel MA, Garner KM, Luijendijk MC, Adan RA. The obesity-associated gene Negr1 regulates aspects of energy balance in rat hypothalamic areas. Physiol Rep 2014; 2 (7) e12083
  • 14 Veerappa AM, Saldanha M, Padakannaya P, Ramachandra NB. Family-based genome-wide copy number scan identifies five new genes of dyslexia involved in dendritic spinal plasticity. J Hum Genet 2013; 58 (8) 539-547