rs121917758

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong

The NM_005343.4(HRAS):c.173C>T(p.Thr58Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,460,978 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HRAS
NM_005343.4 missense

Scores

Clinical Significance

Pathogenic reviewed by expert panel P:9

Conservation

PhyloP100: 9.80

Variant links:

Genes affected

HRAS (HGNC:5173): (HRas proto-oncogene, GTPase) This gene belongs to the Ras oncogene family, whose members are related to the transforming genes of mammalian sarcoma retroviruses. The products encoded by these genes function in signal transduction pathways. These proteins can bind GTP and GDP, and they have intrinsic GTPase activity. This protein undergoes a continuous cycle of de- and re-palmitoylation, which regulates its rapid exchange between the plasma membrane and the Golgi apparatus. Mutations in this gene cause Costello syndrome, a disease characterized by increased growth at the prenatal stage, growth deficiency at the postnatal stage, predisposition to tumor formation, cognitive disability, skin and musculoskeletal abnormalities, distinctive facial appearance and cardiovascular abnormalities. Defects in this gene are implicated in a variety of cancers, including bladder cancer, follicular thyroid cancer, and oral squamous cell carcinoma. Multiple transcript variants, which encode different isoforms, have been identified for this gene. [provided by RefSeq, Jul 2008]

HRAS links:

LRRC56 (HGNC:25430): (leucine rich repeat containing 56) Predicted to be involved in cell projection organization. Predicted to be located in cilium. Implicated in primary ciliary dyskinesia 39. [provided by Alliance of Genome Resources, Apr 2022]

LRRC56 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM1

In a chain GTPase HRas (size 185) in uniprot entity RASH_HUMAN there are 12 pathogenic changes around while only 2 benign (86%) in NM_005343.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.99

PP5

Variant 11-533883-G-A is Pathogenic according to our data. Variant chr11-533883-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 12610.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr11-533883-G-A is described in UniProt as null. Variant chr11-533883-G-A is described in UniProt as null. Variant chr11-533883-G-A is described in UniProt as null.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HRAS	NM_005343.4 link	c.173C>T	p.Thr58Ile	missense_variant	Exon 3 of 6	ENST00000311189.8	NP_005334.1	P01112-1X5D945
HRAS	NM_176795.5 link	c.173C>T	p.Thr58Ile	missense_variant	Exon 3 of 6	ENST00000417302.7	NP_789765.1	P01112-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HRAS	ENST00000311189.8 link	c.173C>T	p.Thr58Ile	missense_variant	Exon 3 of 6	1	NM_005343.4	ENSP00000309845.7		P01112-1
HRAS	ENST00000417302.7 link	c.173C>T	p.Thr58Ile	missense_variant	Exon 3 of 6	5	NM_176795.5	ENSP00000388246.1		P01112-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1460978

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726812

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:9

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Costello syndrome

Pathogenic:7

Sep 23, 2014

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The Thr58Ile variant in HRAS has been reported in three individuals with clinica l features of Costello syndrome (Gripp 2008, Gripp 2012, LMM unpublished data). It was identified to occur de novo in two of these individuals and segregated w ith disease in one affected relative from one of these families. This variant wa s absent from large population studies. Computational prediction tools and conse rvation analysis suggest that this variant may impact the protein, though this i nformation is not predictive enough to determine pathogenicity. In summary, this variant meets our criteria to be classified as pathogenic (http://pcpgm.partner s.org/LMM). -

Feb 03, 2014

Blueprint Genetics

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Sep 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 58 of the HRAS protein (p.Thr58Ile). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of Costello syndrome (PMID: 18247425, 22488832, 26888048). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 12610). Invitae Evidence Modeling incorporating data from in vitro experimental studies (internal data) indicates that this missense variant is expected to disrupt HRAS function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic. -

Mar 15, 2008

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Jun 12, 2020

Genetics and Molecular Pathology, SA Pathology

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PS1, PS4_supporting, PM1, PM2, PP5 The HRAS c.173C>T variant is a single nucleotide change from a cytosine to a thymine at position 173 which is predicted to substitute the amino acid threonine at position 58 in the protein to isoleucine. The variant is located in exon 3. This variant has been reported in the literature in patients with Costello syndrome, and this particular variant appears to be associated with an attenuated phenotype and has been described in a father and son (PMID: 22488832; PMID: 18247425) (PS4_supporting). The variant is in dbSNP (rs121917758) but is absent from population databases (PM2). This variant has been classified by the ClinGen RASopathy Variant Curation Expert Panel as Pathogenic and is reported as Pathogenic in the ClinVar database (Variation ID: 12610) (PP5). This variant was detected in both the affected child and her mother. -

Sep 02, 2022

Victorian Clinical Genetics Services, Murdoch Childrens Research Institute

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0101 - Gain of function is a known mechanism of disease in this gene and is associated with Costello syndrome (MIM#218040) [PMID: 31222966]. (I) 0107 - This gene is associated with autosomal dominant disease. (I) 0115 - Variants in this gene are known to have variable expressivity (GeneReviews).(I) 0200 - Variant is predicted to result in a missense amino acid change from threonine to isoleucine. (I) 0251 - This variant is heterozygous. (I) 0301 - Variant is absent from gnomAD (both v2 and v3). (SP) 0309 - An alternative amino acid change at the same position has been observed in gnomAD (v2) (1 heterozygote, 0 homozygotes). (I) 0501 - Missense variant consistently predicted to be damaging by multiple in silico tools or highly conserved with a major amino acid change. (SP) 0602 - Variant is located in a hotspot region or cluster of pathogenic variants in the Ras domain (Decipher; PMID 29493581). (SP) 0801 - This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant has been reported as de novo in at least two individuals with Costello syndrome (PMID 18247425; PMID 26888048). It has also been reported in a father and child with an attenuated Costello syndrome phenotype (PMID 22488832). This variant has been classified as pathogenic by the ClinGen RASopathy Variant Curation Expert Panel (ClinVar). (SP) 1102 - Strong phenotype match for this individual. (SP) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -

Apr 03, 2017

ClinGen RASopathy Variant Curation Expert Panel

Significance: Pathogenic

Review Status: reviewed by expert panel

Collection Method: curation

The c.173C>T (p.Thr58Ile) variant in HRAS has been reported in the literature as an unconfirmed de novo occurrence in a patient with clinical features of a RASopathy (PM6; PMID 20112233, 16474405). Also, at least 2 independent occurrences of this variant have been detected in patients with a RASopathy (PS4_Supporting; PMID: 22488832, 18247425, 23321623, 20949621, 16921267). This variant was absent from large population studies (PM2; ExAC, http://exac.broadinstitute.org). The p.Thr58Ile variant in HRAS is analogous to the same previously established amino acid change in the KRAS gene and the ClinGen RASopathy Expert Panel has defined that the pathogenicities of analogous variants in the HRAS and KRAS genes are correlated based on the assumption that a known functional residue in one gene is equivalent to other functions within that subgroup (PS1; 29493581). Furthermore, the variant is in a location that has been defined by the ClinGen RASopathy Expert Panel to be a mutational hotspot or domain of HRAS (PM1; PMID 29493581). The variant is in HRAS, which has been defined by the ClinGen RASopathy Expert Panel as a gene with low rate of benign missense with missense variants commonly being pathogenic (PP2; PMID 29493581). Computational prediction tools and conservation analysis suggest that the p.Thr58Ile variant may impact the protein (PP3). In summary, this variant meets criteria to be classified as pathogenic for RASopathies in an autosomal dominant manner. Rasopathy-specific ACMG/AMP criteria applied (PMID:29493581): PM6, PS4_Supporting, PM2, PS1, PM1, PP2, PP3. -

not provided

Pathogenic:1

Sep 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

HRAS: PS2, PM1, PM2, PS4:Moderate, PP3 -

HRAS-related disorder

Pathogenic:1

Jun 06, 2024

PreventionGenetics, part of Exact Sciences

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

The HRAS c.173C>T variant is predicted to result in the amino acid substitution p.Thr58Ile. This variant has been repeatedly confirmed de novo in individuals with clinical features of Costello syndrome (Gripp et al. 2008. PubMed ID: 18247425; Gripp et al. 2012. PubMed ID: 22488832; Hiippala et al. 2016. PubMed ID: 26888048). This variant has not been reported in a large population database, indicating this variant is rare. This variant has been interpreted as pathogenic by the ClinGen RASopathy Variant Curation Expert Panel (https://www.ncbi.nlm.nih.gov/clinvar/variation/12610/). This variant is interpreted as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.47

BayesDel_noAF

Pathogenic

0.43

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.90

.;D;.;D;D

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.43

FATHMM_MKL

Pathogenic

0.98

M_CAP

Uncertain

0.23

MetaRNN

Pathogenic

0.99

D;D;D;D;D

MetaSVM

Pathogenic

0.90

MutationAssessor

Pathogenic

3.4

M;M;M;M;M

PrimateAI

Pathogenic

0.92

PROVEAN

Pathogenic

-5.8

D;D;D;D;D

REVEL

Pathogenic

0.78

Sift

Pathogenic

0.0

D;D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;D

Polyphen

1.0

D;D;D;D;D

Vest4

0.97

MutPred

0.96

Loss of glycosylation at T58 (P = 0.0515);Loss of glycosylation at T58 (P = 0.0515);Loss of glycosylation at T58 (P = 0.0515);Loss of glycosylation at T58 (P = 0.0515);Loss of glycosylation at T58 (P = 0.0515);

MVP

0.99

MPC

2.2

ClinPred

1.0

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.98

gMVP

0.96

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over