rs774939392

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM1PP2BS2

The NM_002834.5(PTPN11):​c.931A>G​(p.Met311Val) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000931 in 1,611,690 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M311T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

PTPN11
NM_002834.5 missense, splice_region

Scores

2
7
11
Splicing: ADA: 0.01262
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5B:1

Conservation

PhyloP100: 6.98
Variant links:
Genes affected
PTPN11 (HGNC:9644): (protein tyrosine phosphatase non-receptor type 11) The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains two tandem Src homology-2 domains, which function as phospho-tyrosine binding domains and mediate the interaction of this PTP with its substrates. This PTP is widely expressed in most tissues and plays a regulatory role in various cell signaling events that are important for a diversity of cell functions, such as mitogenic activation, metabolic control, transcription regulation, and cell migration. Mutations in this gene are a cause of Noonan syndrome as well as acute myeloid leukemia. [provided by RefSeq, Aug 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM1
In a domain Tyrosine-protein phosphatase (size 270) in uniprot entity PTN11_HUMAN there are 52 pathogenic changes around while only 2 benign (96%) in NM_002834.5
PP2
Missense variant in the PTPN11 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 131 curated pathogenic missense variants (we use a threshold of 10). The gene has 13 curated benign missense variants. Gene score misZ: 3.1293 (above the threshold of 3.09). Trascript score misZ: 4.9438 (above the threshold of 3.09). GenCC associations: The gene is linked to Noonan syndrome and Noonan-related syndrome, Noonan syndrome with multiple lentigines, metachondromatosis, Noonan syndrome 1, Noonan syndrome, cardiofaciocutaneous syndrome, LEOPARD syndrome 1, Costello syndrome.
BS2
High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PTPN11NM_002834.5 linkc.931A>G p.Met311Val missense_variant, splice_region_variant Exon 8 of 16 ENST00000351677.7 NP_002825.3 Q06124-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PTPN11ENST00000351677.7 linkc.931A>G p.Met311Val missense_variant, splice_region_variant Exon 8 of 16 1 NM_002834.5 ENSP00000340944.3 Q06124-2
PTPN11ENST00000635625.1 linkc.931A>G p.Met311Val missense_variant, splice_region_variant Exon 8 of 15 5 ENSP00000489597.1 Q06124-1
PTPN11ENST00000635652.1 linkc.-204A>G upstream_gene_variant 3 ENSP00000489541.1 A0A0U1RRI0

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251446
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135894
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000891
AC:
13
AN:
1459500
Hom.:
0
Cov.:
32
AF XY:
0.00000826
AC XY:
6
AN XY:
726250
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000631
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.0000312
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5Benign:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:2
Aug 26, 2015
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The M311V variant has been published previously in a patient with a Noonan-spectrum disorder in cis with the PTPN11 Y63C variant (Ezquieta et al., 2012). The authors of this study suggested M311V is a polymorphism based on in silico predictions. The M311V variant was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. The M311V variant is a conservative amino acid substitution, which is not likely to impact secondary protein structure as these residues share similar properties. This substitution occurs at a position within the tyrosine protein-phosphatase domain where amino acids with similar properties to methionine are tolerated across species. However, in silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function, and missense variants in nearby residues (N308D/T/S, I309V) have been reported in the Human Gene Mutation Database in association with Noonan syndrome (Stenson et al., 2014), supporting the functional importance of this region of the protein. Therefore, based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant. -

Mar 06, 2018
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: in ClinVar -VUS by GeneDx, not in HGMD or Google search; in 7/246208 total chrs in GnomAd -

Juvenile myelomonocytic leukemia;C0410530:Metachondromatosis;C4551484:LEOPARD syndrome 1;C4551602:Noonan syndrome 1 Uncertain:1
Apr 06, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiovascular phenotype Uncertain:1
Aug 04, 2016
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.M311V variant (also known as c.931A>G), located in coding exon 8 of the PTPN11 gene, results from an A to G substitution at nucleotide position 931. The methionine at codon 311 is replaced by valine, an amino acid with highly similar properties. This variant has been detected in cis with a known PTPN11 mutation, p.Y63C (c.188A>G) in several individuals with suspected Noonan syndrome from two unrelated families (Ezquieta B et al. Rev Esp Cardiol (Engl Ed), 2012 May;65:447-55; Collazo J et al. Rev Esp Cardiol (Engl Ed), 2012 Mar; Volume3N1) ).This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), and 1000 Genomes Project. In the ESP, this variant was not observed in 6503 samples (13006 alleles) with coverage at this position. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

RASopathy Uncertain:1
Dec 04, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 311 of the PTPN11 protein (p.Met311Val). This variant is present in population databases (rs774939392, gnomAD 0.009%). This missense change has been observed in individual(s) with PTPN11-related conditions (PMID: 22465605). ClinVar contains an entry for this variant (Variation ID: 372668). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt PTPN11 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

PTPN11-related disorder Benign:1
Apr 07, 2021
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.063
CardioboostCm
Benign
0.034
BayesDel_addAF
Uncertain
0.019
T
BayesDel_noAF
Uncertain
-0.010
CADD
Benign
21
DANN
Benign
0.89
DEOGEN2
Uncertain
0.43
.;.;T
Eigen
Benign
-0.12
Eigen_PC
Benign
0.14
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.71
T;T;T
M_CAP
Uncertain
0.20
D
MetaRNN
Uncertain
0.43
T;T;T
MetaSVM
Uncertain
0.62
D
MutationAssessor
Benign
-0.23
N;N;N
PrimateAI
Pathogenic
0.83
D
PROVEAN
Benign
-1.1
N;N;.
REVEL
Uncertain
0.47
Sift
Benign
0.10
T;T;.
Sift4G
Benign
0.57
T;T;T
Polyphen
0.0
B;B;.
Vest4
0.66
MutPred
0.56
Gain of catalytic residue at M311 (P = 0.1066);Gain of catalytic residue at M311 (P = 0.1066);Gain of catalytic residue at M311 (P = 0.1066);
MVP
0.90
MPC
0.84
ClinPred
0.16
T
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.75
gMVP
0.50

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.013
dbscSNV1_RF
Benign
0.15
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.

Other links and lift over

dbSNP: rs774939392; hg19: chr12-112915532; COSMIC: COSV61008593; COSMIC: COSV61008593; API