rs879819202

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 4P and 4B. PP3_StrongBS2

The NM_030662.4(MAP2K2):​c.1061C>T​(p.Pro354Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000892 in 1,570,068 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000092 ( 0 hom. )

Consequence

MAP2K2
NM_030662.4 missense

Scores

12
6
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 7.17

Publications

1 publications found
Variant links:
Genes affected
MAP2K2 (HGNC:6842): (mitogen-activated protein kinase kinase 2) The protein encoded by this gene is a dual specificity protein kinase that belongs to the MAP kinase kinase family. This kinase is known to play a critical role in mitogen growth factor signal transduction. It phosphorylates and thus activates MAPK1/ERK2 and MAPK2/ERK3. The activation of this kinase itself is dependent on the Ser/Thr phosphorylation by MAP kinase kinase kinases. Mutations in this gene cause cardiofaciocutaneous syndrome (CFC syndrome), a disease characterized by heart defects, cognitive disability, and distinctive facial features similar to those found in Noonan syndrome. The inhibition or degradation of this kinase is also found to be involved in the pathogenesis of Yersinia and anthrax. A pseudogene, which is located on chromosome 7, has been identified for this gene. [provided by RefSeq, Jul 2008]
MAP2K2 Gene-Disease associations (from GenCC):
  • cardiofaciocutaneous syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • cardiofaciocutaneous syndrome 4
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • neurofibromatosis-Noonan syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Noonan syndrome
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.978
BS2
High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MAP2K2NM_030662.4 linkc.1061C>T p.Pro354Leu missense_variant Exon 10 of 11 ENST00000262948.10 NP_109587.1 P36507
MAP2K2NM_001440688.1 linkc.782C>T p.Pro261Leu missense_variant Exon 8 of 9 NP_001427617.1
MAP2K2NM_001440689.1 linkc.491C>T p.Pro164Leu missense_variant Exon 8 of 9 NP_001427618.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MAP2K2ENST00000262948.10 linkc.1061C>T p.Pro354Leu missense_variant Exon 10 of 11 1 NM_030662.4 ENSP00000262948.4 P36507

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152214
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000917
AC:
13
AN:
1417854
Hom.:
0
Cov.:
31
AF XY:
0.00000571
AC XY:
4
AN XY:
700976
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32868
American (AMR)
AF:
0.00
AC:
0
AN:
37580
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25300
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37988
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80666
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50108
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5716
European-Non Finnish (NFE)
AF:
0.0000119
AC:
13
AN:
1088902
Other (OTH)
AF:
0.00
AC:
0
AN:
58726
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.448
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152214
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74366
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000313
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
May 16, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Pro354Leu variant in MAP2K2 has not been previously reported in individual s with clinical features of a RASopathy or in large population studies. Computat ional prediction tools and conservation analysis suggest that the p.Pro354Leu va riant may impact the protein, though this information is not predictive enough t o determine pathogenicity. In summary, the clinical significance of the p.Pro35 4Leu variant is uncertain -

not provided Uncertain:1
Feb 08, 2022
AiLife Diagnostics, AiLife Diagnostics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Uncertain:1
Jun 03, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.P354L variant (also known as c.1061C>T), located in coding exon 10 of the MAP2K2 gene, results from a C to T substitution at nucleotide position 1061. The proline at codon 354 is replaced by leucine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.83
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Pathogenic
0.14
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.49
T;T
Eigen
Pathogenic
0.78
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Pathogenic
0.85
D
MetaRNN
Pathogenic
0.98
D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
3.1
M;.
PhyloP100
7.2
PrimateAI
Uncertain
0.77
T
PROVEAN
Pathogenic
-7.6
D;D
REVEL
Pathogenic
0.86
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.0080
D;D
Polyphen
1.0
D;.
Vest4
0.79
MutPred
0.82
Loss of ubiquitination at K352 (P = 0.0603);.;
MVP
0.89
MPC
1.2
ClinPred
1.0
D
GERP RS
3.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.75
gMVP
0.79
Mutation Taster
=10/90
disease causing

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

Other links and lift over

dbSNP: rs879819202; hg19: chr19-4094482; COSMIC: COSV53571050; API