Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Molecular confirmation of HRAS p.G12S in siblings with Costello syndrome. 21834037

2011

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE We have observed unusual transverse distal phalangeal creases in two patients, one with Costello syndrome (G12S mutation in the HRAS gene) and one with cardio-facio-cutaneous (CFC) syndrome or possibly Noonan syndrome (Q22E mutation in the KRAS gene). 17324647

2007

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Two disease-associated mutations, G12V and G12S, have previously been observed in patients with Costello syndrome (CS), and two other mutations, E63K and Q22K, are novel. 17412879

2007

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Costello syndrome (CS) is a rare congenital disorder due to a G12S amino acid substitution in HRAS protoncogene. 26419841

2016

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Costello syndrome (CS) is due to mutations in HRAS, with the most common mutation being c.34G>A (p.G12S), found in most patients in all the published series. 18039947

2008

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Two cases with severe lethal course of Costello syndrome associated with HRAS p.G12C and p.G12D. 22926243

2012

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Germline mutations in the HRAS gene, especially p.(Gly12Ser/Ala), cause Costello Syndrome (CS), a severe congenital disorder. 24169525

2014

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE De novo heterozygous HRAS point mutations have been reported in more than 81 patients with Costello syndrome (CS), but genotype/phenotype correlation remains incomplete because the majority of patients share a common mutation, G12S, seen in 65/81 (80%). 16969868

2006

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE In the current study, we identified four mutations (p.G12S, p.G12A, p.G12C and p.G12D) in 21 patients and analyzed the associated clinical manifestations of CS in these individuals. 21850009

2011

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Heterozygous missense mutations in HRAS are causative for Costello syndrome, with the c.34G > A (p.G12S) mutation as the most commonly found alteration. 20979192

2010

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Male-to-male transmission of Costello syndrome: G12S HRAS germline mutation inherited from a father with somatic mosaicism. 19206176

2009

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Recurring HRAS mutation G12S in Dutch patients with Costello syndrome. 16881968

2006

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE Heterozygous mutations in HRAS are responsible for Costello syndrome, with more than 80% of the patients harboring the specific p.Gly12Ser variant. 28371260

2017

dbSNP: rs104894229
rs104894229
0.900 GeneticVariation BEFREE To examine the mechanisms of energy reprogramming by HRAS activation in vivo, we generated knock-in mice expressing a heterozygous Hras G12S mutation (Hras<sup>G12S/+</sup> mice) as a mouse model of Costello syndrome. 29254681

2018

dbSNP: rs104894230
rs104894230
0.840 GeneticVariation BEFREE In the current study, we identified four mutations (p.G12S, p.G12A, p.G12C and p.G12D) in 21 patients and analyzed the associated clinical manifestations of CS in these individuals. 21850009

2011

dbSNP: rs104894230
rs104894230
0.840 GeneticVariation BEFREE Fetal costello syndrome with neuromuscular spindles excess and p.Gly12Val HRAS mutation. 28455154

2017

dbSNP: rs104894230
rs104894230
0.840 GeneticVariation BEFREE Whole exome sequencing (WES) revealed a previously well established, disease-causing heterozygous likely pathogenic variant in the Harvey rat sarcoma viral oncogene homolog (HRAS)-gene (c.35G > C, p. G12A, rs104894230), which implied the clinical diagnosis of Costello syndrome (CS; OMIM#190020.0004). 30885829

2019

dbSNP: rs104894230
rs104894230
0.840 GeneticVariation BEFREE Two cases with severe lethal course of Costello syndrome associated with HRAS p.G12C and p.G12D. 22926243

2012

dbSNP: rs104894228
rs104894228
0.830 GeneticVariation BEFREE Phenotypic analysis of individuals with Costello syndrome due to HRAS p.G13C. 21438134

2011

dbSNP: rs104894228
rs104894228
0.830 GeneticVariation BEFREE Retinal dystrophy in two boys with Costello syndrome due to the HRAS p.Gly13Cys mutation. 28337834

2017

dbSNP: rs104894228
rs104894228
0.830 GeneticVariation BEFREE We report on a premature male with Costello syndrome due to a rare G13C HRAS mutation and describe his clinical features and evolution during the first year of life. 19213030

2009

dbSNP: rs121917757
rs121917757
0.820 GeneticVariation BEFREE Molecular studies in this patient demonstrated the uncommon Q22K mutation in the HRAS gene, diagnostic of Costello syndrome. 25668678

2015

dbSNP: rs121917757
rs121917757
0.820 GeneticVariation BEFREE Two disease-associated mutations, G12V and G12S, have previously been observed in patients with Costello syndrome (CS), and two other mutations, E63K and Q22K, are novel. 17412879

2007

dbSNP: rs104894226
rs104894226
0.810 GeneticVariation BEFREE Phenotypic spectrum of Costello syndrome individuals harboring the rare HRAS mutation p.Gly13Asp. 28371260

2017

dbSNP: rs104894227
rs104894227
0.810 GeneticVariation BEFREE We report a patient with typical Costello syndrome and a novel heterozygous missense mutation in codon 117 (c.350A>G, p.Lys117Arg) of the HRAS gene, resulting in constitutive activation of the RAS/MAPK pathway similar to the typical p.Gly12Ser and p.Gly12Ala mutations. 17979197

2008