chr19-4090611-C-T

Position:

chr19-4090611-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_030662.4(MAP2K2):c.1190G>A(p.Arg397His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000264 in 1,399,040 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. 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. R397C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

MAP2K2
NM_030662.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.658

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.045347393).

BS2

High AC in GnomAdExome4 at 37 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MAP2K2	NM_030662.4 linkuse as main transcript	c.1190G>A	p.Arg397His	missense_variant	11/11	ENST00000262948.10
MAP2K2	XM_006722799.3 linkuse as main transcript	c.911G>A	p.Arg304His	missense_variant	9/9
MAP2K2	XM_047439100.1 linkuse as main transcript	c.620G>A	p.Arg207His	missense_variant	9/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MAP2K2	ENST00000262948.10 linkuse as main transcript	c.1190G>A	p.Arg397His	missense_variant	11/11	1	NM_030662.4	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000254

AC:

AN:

157468

Hom.:

AF XY:

0.0000120

AC XY:

AN XY:

83344

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000874

Gnomad SAS exome

AF:

0.0000873

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000225

GnomAD4 exome

AF:

0.0000264

AC:

AN:

1399040

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

690322

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000279

Gnomad4 SAS exome

AF:

0.000277

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000834

Gnomad4 OTH exome

AF:

0.0000690

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000914

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 15, 2024

The c.1190G>A (p.R397H) alteration is located in exon 11 (coding exon 11) of the MAP2K2 gene. This alteration results from a G to A substitution at nucleotide position 1190, causing the arginine (R) at amino acid position 397 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

RASopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 05, 2023

This variant has not been reported in the literature in individuals affected with MAP2K2-related conditions. 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MAP2K2 protein function. ClinVar contains an entry for this variant (Variation ID: 40844). This variant is present in population databases (rs751040819, gnomAD 0.01%). This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 397 of the MAP2K2 protein (p.Arg397His). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.082

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.36

CADD

Benign

DANN

Benign

0.29

DEOGEN2

Benign

0.19

T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.19

LIST_S2

Uncertain

0.87

D;D

M_CAP

Benign

0.036

MetaRNN

Benign

0.045

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.63

N;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.43

PROVEAN

Benign

0.94

N;N

REVEL

Benign

0.19

Sift

Benign

0.70

T;T

Sift4G

Benign

0.58

T;T

Polyphen

0.0010

B;.

Vest4

0.14

MutPred

0.27

Loss of methylation at R397 (P = 0.032);.;

MVP

0.57

MPC

0.55

ClinPred

0.048

GERP RS

1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.030

gMVP

0.67

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

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