rs397507542

Variant summary

Our verdict is Pathogenic. Variant got 19 ACMG points: 19P and 0B. PM1PM2PM5PP2PP3_StrongPP5_Very_Strong

The NM_002834.5(PTPN11):​c.1493G>A​(p.Arg498Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R498L) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Consequence

PTPN11
NM_002834.5 missense

Scores

16
3
1

Clinical Significance

Likely pathogenic criteria provided, multiple submitters, no conflicts P:2

Conservation

PhyloP100: 9.60
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 19 ACMG points.

PM1
In a helix (size 8) in uniprot entity PTN11_HUMAN there are 7 pathogenic changes around while only 0 benign (100%) in NM_002834.5
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr12-112489069-G-T is described in Lovd as [Pathogenic].
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.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.988
PP5
Variant 12-112489069-G-A is Pathogenic according to our data. Variant chr12-112489069-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1805026.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PTPN11NM_002834.5 linkc.1493G>A p.Arg498Gln missense_variant Exon 13 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.1493G>A p.Arg498Gln missense_variant Exon 13 of 16 1 NM_002834.5 ENSP00000340944.3 Q06124-2
PTPN11ENST00000635625.1 linkc.1505G>A p.Arg502Gln missense_variant Exon 13 of 15 5 ENSP00000489597.1 Q06124-1
PTPN11ENST00000635652.1 linkc.506G>A p.Arg169Gln missense_variant Exon 5 of 5 3 ENSP00000489541.1 A0A0U1RRI0

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Noonan syndrome 1 Pathogenic:1
May 06, 2021
Victorian Clinical Genetics Services, Murdoch Childrens Research Institute
Significance: Likely 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 Likely pathogenic. Following criteria are met: 0103 - Both loss- and gain-of-function are known mechanisms of disease for this gene. Metachondromatosis (MIM#156250) and Noonan syndrome with multiple lentigines have been associated with loss of function variants, whereas Noonan syndrome 1 (MIM#163950) is caused by gain of function variants (PMIDs: 11992261, 24935154, 21533187). (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 arginine to glutamine. (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, v3) (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 (Decipher). (SP) 0701 - Other missense variants comparable to the one identified in this case have very strong previous evidence for pathogenicity. These variants, (p.Arg498Trp, p.Arg498Leu), have been reported many times as pathogenic, in individuals with either Noonan syndrome or LEOPARD syndrome (ClinVar, LOVD). (SP) 0807 - This variant has no previous evidence of pathogenicity. (I) 0905 - No published segregation evidence has been identified for this variant. (I) 1007 - No published functional evidence has been identified for this variant. (I) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -

not provided Pathogenic:1
Jul 22, 2024
GeneDx
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Identified in a patient with clinical features of PTPN11-related disorder in published literature (PMID: 38540404); Not observed at significant frequency in large population cohorts (gnomAD); Missense variants in this gene are a common cause of disease and they are underrepresented in the general population; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 11992261, 24935154, 21533187, 38540404, 37904969, 17875892, 15121796, 17339163) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
CardioboostCm
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.49
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.94
.;D;.
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.99
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Pathogenic
0.55
D
MetaRNN
Pathogenic
0.99
D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.4
.;H;.
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-3.8
D;.;.
REVEL
Pathogenic
0.96
Sift
Pathogenic
0.0
D;.;.
Sift4G
Uncertain
0.0020
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.97
MutPred
0.95
Loss of catalytic residue at R498 (P = 0.0116);.;.;
MVP
0.99
MPC
2.0
ClinPred
1.0
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.95
gMVP
0.99

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-112926873; COSMIC: COSV61009817; COSMIC: COSV61009817; API