rs200945755

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBS1BS2

The NM_001318054.2(HRAS):​c.50C>T​(p.Ala17Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00007 in 1,613,848 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 5/6 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000068 ( 1 hom. )

Consequence

HRAS
NM_001318054.2 missense

Scores

2

Clinical Significance

Benign reviewed by expert panel B:9

Conservation

PhyloP100: 0.617
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]
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

PM1
In a mutagenesis_site Dominant negative. Prevents PLCE1 EGF-induced recruitment to plasma membrane. No effect on subcellular location of isoform 2. (size 0) in uniprot entity RASH_HUMAN
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 11-533534-G-A is Benign according to our data. Variant chr11-533534-G-A is described in ClinVar as [Benign]. Clinvar id is 259747.Status of the report is reviewed_by_expert_panel, 3 stars.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.0000919 (14/152330) while in subpopulation EAS AF= 0.0025 (13/5192). AF 95% confidence interval is 0.00148. There are 0 homozygotes in gnomad4. There are 8 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HRASNM_005343.4 linkc.369C>T p.Arg123Arg synonymous_variant Exon 4 of 6 ENST00000311189.8 NP_005334.1 P01112-1X5D945
HRASNM_176795.5 linkc.369C>T p.Arg123Arg synonymous_variant Exon 4 of 6 ENST00000417302.7 NP_789765.1 P01112-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HRASENST00000311189.8 linkc.369C>T p.Arg123Arg synonymous_variant Exon 4 of 6 1 NM_005343.4 ENSP00000309845.7 P01112-1
HRASENST00000417302.7 linkc.369C>T p.Arg123Arg synonymous_variant Exon 4 of 6 5 NM_176795.5 ENSP00000388246.1 P01112-2

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152212
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00250
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000167
AC:
42
AN:
251344
Hom.:
0
AF XY:
0.000147
AC XY:
20
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00223
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000677
AC:
99
AN:
1461518
Hom.:
1
Cov.:
35
AF XY:
0.0000605
AC XY:
44
AN XY:
727082
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00239
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000919
AC:
14
AN:
152330
Hom.:
0
Cov.:
33
AF XY:
0.000107
AC XY:
8
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00250
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000155
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:9
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Benign:3
Jan 23, 2017
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: The HRAS c.369C>T (p.Arg123Arg) variant involves the alteration of a non-conserved nucleotide, resulting in a synonymous change. It is 81 nucleotides upstream from exon-intron boundary. 2/5 splice prediction tools predict a creation of cryptic splice donor site. ESE finder predicts that this variant may affect binding of ESE site(s). However, these predictions have yet to be confirmed by functional studies. This variant was found in 13/120964 control chromosomes, exclusively observed in the East Asian subpopulation at a frequency of 0.001505 (13/8638). This frequency is about 602 times the estimated maximal expected allele frequency of a pathogenic HRAS variant (0.0000025), suggesting this is likely a benign polymorphism found primarily in the populations of East Asian origin. In addition, one clinical diagnostic laboratory has classified this variant as likely benign. The variant of interest has not, to our knowledge, been reported in affected individuals via publications and/or reputable databases/clinical diagnostic laboratories. Taken together, this variant is classified as benign. -

Sep 20, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

HRAS: BP4, BP7 -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Costello syndrome Benign:1
Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:1
Jan 13, 2022
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Cardiovascular phenotype Benign:1
Mar 04, 2022
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Noonan syndrome and Noonan-related syndrome Benign:1
Mar 01, 2018
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

RASopathy Benign:1
Apr 18, 2017
ClinGen RASopathy Variant Curation Expert Panel
Significance: Benign
Review Status: reviewed by expert panel
Collection Method: curation

The filtering allele frequency of the c.369C>T (p.Arg123=) variant in the HRAS gene is 0.089% (13/8638) of East Asian chromosomes by the Exome Aggregation Consortium, which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen RASopathy Expert Panel (BA1; PMID:29493581) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
CADD
Benign
9.3
DANN
Benign
0.93

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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.

Other links and lift over

dbSNP: rs200945755; hg19: chr11-533534; API