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1p13.2 deletion dis...
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Linhares, Natalia DuarteUniv Fed Minas Gerais, Fac Med, Lab Genom Clin, Belo Horizonte, MG, Brazil.
(författare)
1p13.2 deletion displays clinical features overlapping Noonan syndrome, likely related to NRAS gene haploinsufficiency
- Artikel/kapitelEngelska2016
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2016
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LIBRIS-ID:oai:DiVA.org:uu-304521
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304521URI
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https://doi.org/10.1590/1678-4685-GMB-2016-0049DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Deletion-induced hemizygosity may unmask deleterious autosomal recessive variants and be a cause of the phenotypic variability observed in microdeletion syndromes. We performed complete exome sequencing (WES) analysis to examine this possibility in a patient with 1p13.2 microdeletion. Since the patient displayed clinical features suggestive of Noonan Syndrome (NS), we also used WES to rule out the presence of pathogenic variants in any of the genes associated with the different types of NS. We concluded that the clinical findings could be attributed solely to the 1p13.2 haploinsufficiency. Retrospective analysis of other nine reported patients with 1p13.2 microdeletions showed that six of them also presented some characteristics of NS. In all these cases, the deleted segment included the NRAS gene. Gain-of-function mutations of NRAS gene are causally related to NS type 6. Thus, it is conceivable that NRAS haploinsufficiency and gain-of-function mutations may have similar clinical consequences. The same phenomenon has been described for two other genes belonging to the Ras/MAPK pathway: MAP2K2 and SHOC2. In conclusion, we here report genotype-phenotype correlations in patients with chromosome 1p13.2 microdeletions and we propose that NRAS may be a critical gene for the NS characteristics in the patients.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Menezes Freire, Maira CristinaUniv Fed Minas Gerais, Inst Ciencias Biol, Dept Bioquim & Imunol, Belo Horizonte, MG, Brazil.
(författare)
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do Carmo Lisboa Cardenas, Raony Guimaraes CorreaUniv Fed Minas Gerais, Fac Med, Lab Genom Clin, Belo Horizonte, MG, Brazil.
(författare)
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Pena, Heloisa BarbosaLab Gene Nucl Genet Med, Belo Horizonte, MG, Brazil.
(författare)
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Lachlan, KatherinePrincess Anne Hosp, Wessex Clin Genet Serv, Southampton, Hants, England.
(författare)
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Dallapiccola, BrunoBambino Gesu Children Hosp, Rome, Italy.
(författare)
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Bacino, CarlosBaylor Coll Med, Dept Mol & Human Genet, Houston, TX 77030 USA.
(författare)
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Delobel, BrunoHop St Vincent de Paul, GH Inst Catholique Lille, Ctr Genet Chromos, Lille, France.
(författare)
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James, PaulVictorian Clin Genet Serv, Melbourne, Vic, Australia.
(författare)
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Thuresson, Ann-CharlotteUppsala universitet,Institutionen för immunologi, genetik och patologi(Swepub:uu)anncthur
(författare)
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Annerén, GöranUppsala universitet,Institutionen för immunologi, genetik och patologi(Swepub:uu)goraanne
(författare)
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Pena, Sergio D. J.Univ Fed Minas Gerais, Fac Med, Lab Genom Clin, Belo Horizonte, MG, Brazil.;Univ Fed Minas Gerais, Inst Ciencias Biol, Dept Bioquim & Imunol, Belo Horizonte, MG, Brazil.;Lab Gene Nucl Genet Med, Belo Horizonte, MG, Brazil.
(författare)
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Univ Fed Minas Gerais, Fac Med, Lab Genom Clin, Belo Horizonte, MG, Brazil.Univ Fed Minas Gerais, Inst Ciencias Biol, Dept Bioquim & Imunol, Belo Horizonte, MG, Brazil.
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Genetics and Molecular Biology39:3, s. 349-3571415-47571678-4685
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Linhares, Natali ...
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Menezes Freire, ...
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do Carmo Lisboa ...
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Pena, Heloisa Ba ...
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Lachlan, Katheri ...
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Dallapiccola, Br ...
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visa fler...
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Bacino, Carlos
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Delobel, Bruno
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James, Paul
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Thuresson, Ann-C ...
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Annerén, Göran
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Pena, Sergio D. ...
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