NM_030662.4:c.405G>C

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BA1

This summary comes from the ClinGen Evidence Repository: The filtering allele frequency of the c.405G>C (p.Gly135=) variant in the MAP2K2 gene is 14.69% (1588/10368) of African 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) LINK:https://erepo.genome.network/evrepo/ui/classification/CA137935/MONDO:0021060/004

Frequency

Genomes: 𝑓 0.043 ( 507 hom., cov: 32)

Exomes 𝑓: 0.0045 ( 460 hom. )

Consequence

MAP2K2
NM_030662.4 synonymous

Scores

Clinical Significance

Benign reviewed by expert panel B:12

Conservation

PhyloP100: -0.200

Publications

11 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

MAP2K2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BA1

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAP2K2	NM_030662.4 link	c.405G>C	p.Gly135Gly	synonymous_variant	Exon 3 of 11	ENST00000262948.10	NP_109587.1	P36507
MAP2K2	NM_001440688.1 link	c.405G>C	p.Gly135Gly	synonymous_variant	Exon 3 of 9		NP_001427617.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MAP2K2	ENST00000262948.10 link	c.405G>C	p.Gly135Gly	synonymous_variant	Exon 3 of 11	1	NM_030662.4	ENSP00000262948.4	P36507
MAP2K2	ENST00000394867.9 link	n.844G>C		non_coding_transcript_exon_variant	Exon 2 of 10	5
MAP2K2	ENST00000599345.1 link	n.602G>C		non_coding_transcript_exon_variant	Exon 3 of 7	5
MAP2K2	ENST00000687128.1 link	n.844G>C		non_coding_transcript_exon_variant	Exon 2 of 7

Frequencies

GnomAD3 genomes

AF:

0.0432

AC:

6579

AN:

152124

Hom.:

504

Cov.:

show subpopulations

Gnomad AFR

AF:

0.151

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0146

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0190

Gnomad NFE

AF:

0.000720

Gnomad OTH

AF:

0.0254

GnomAD2 exomes

AF:

0.0116

AC:

2911

AN:

251148

AF XY:

0.00835

show subpopulations

Gnomad AFR exome

AF:

0.153

Gnomad AMR exome

AF:

0.00859

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000695

Gnomad OTH exome

AF:

0.00652

GnomAD4 exome

AF:

0.00452

AC:

6610

AN:

1461682

Hom.:

460

Cov.:

AF XY:

0.00388

AC XY:

2824

AN XY:

727136

show subpopulations

African (AFR)

AF:

0.152

AC:

5102

AN:

33478

American (AMR)

AF:

0.00973

AC:

435

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.0000765

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000441

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53216

Middle Eastern (MID)

AF:

0.0121

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000325

AC:

361

AN:

1112008

Other (OTH)

AF:

0.00997

AC:

602

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.445

Heterozygous variant carriers

325

650

974

1299

1624

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

164

328

492

656

820

<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:

0.0434

AC:

6602

AN:

152242

Hom.:

507

Cov.:

AF XY:

0.0404

AC XY:

3010

AN XY:

74436

show subpopulations

African (AFR)

AF:

0.151

AC:

6268

AN:

41524

American (AMR)

AF:

0.0146

AC:

223

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.000829

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.0170

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000720

AC:

AN:

68032

Other (OTH)

AF:

0.0251

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

288

576

864

1152

1440

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

132

198

264

330

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0133

Hom.:

Bravo

AF:

0.0492

Asia WGS

AF:

0.0110

AC:

AN:

3478

EpiCase

AF:

0.00104

EpiControl

AF:

0.00124

ClinVar

Significance: Benign

Submissions summary: Benign:12

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not specified

Benign:4

Clinical Genetics, Academic Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 31, 2008

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

RASopathy

Benign:3

Baylor Genetics

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Variant classified using ACMG guidelines -

May 09, 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.405G>C (p.Gly135=) variant in the MAP2K2 gene is 14.69% (1588/10368) of African 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) -

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Mar 03, 2015

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Cardiovascular phenotype

Benign:1

Jul 05, 2019

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as 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. -

Cardiofaciocutaneous syndrome 4

Benign:1

Oct 25, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Noonan syndrome and Noonan-related syndrome

Benign:1

Jun 03, 2021

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.50

CADD

Benign

7.6

(source)

DANN

Benign

0.77

PhyloP100

-0.20

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=93/7

polymorphism (auto)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over