rs142307980

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BA1BP4BP5

This summary comes from the ClinGen Evidence Repository: The c.844C>T variant in the MAP2K2 gene is a missense variant predicted to cause substitution of proline by serine at amino acid 282 (p.Pro282Ser). The filtering allele frequency in gnomAD v2.1.1 is 0.001415 (42/22756 alleles) in the African/African American population, meeting the criterion for BA1. The computational predictor REVEL gives a score of 0.072, which predicts no impact on protein function (BP4). This variant has been identified in a patient with an alternate molecular basis for disease (BP5; GeneDx internal data; GTR ID's 26957; SCV000207963.8). In summary, this variant meets criteria to be classified as benign for autosomal dominant RASopathies based on the ACMG/AMP criteria applied, as specified by the ClinGen RASopathy Variant Curation Expert Panel: BA1, BP4, BP5 (Specification Version 2.3, 12/3/2024) LINK:https://erepo.genome.network/evrepo/ui/classification/CA137972/MONDO:0021060/048

Frequency

Genomes: 𝑓 0.00066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000059 ( 2 hom. )

Consequence

MAP2K2
NM_030662.4 missense

Scores

Clinical Significance

Benign reviewed by expert panel U:1B:7

Conservation

PhyloP100: 3.18

Publications

3 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 -10 ACMG points.

BP4

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

BP5

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

BA1

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030662.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MAP2K2	NM_030662.4	MANE Select	c.844C>T	p.Pro282Ser	missense	Exon 7 of 11	NP_109587.1
MAP2K2	NM_001440689.1		c.274C>T	p.Pro92Ser	missense	Exon 5 of 9	NP_001427618.1
MAP2K2	NM_001440688.1		c.705+1743C>T		intron	N/A	NP_001427617.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MAP2K2	ENST00000262948.10	TSL:1 MANE Select	c.844C>T	p.Pro282Ser	missense	Exon 7 of 11	ENSP00000262948.4
MAP2K2	ENST00000394867.9	TSL:5	n.1283C>T		non_coding_transcript_exon	Exon 6 of 10
MAP2K2	ENST00000593364.5	TSL:5	n.791C>T		non_coding_transcript_exon	Exon 5 of 5

Frequencies

GnomAD3 genomes

AF:

0.000663

AC:

101

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00124

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000207

AC:

AN:

231836

AF XY:

0.000150

show subpopulations

Gnomad AFR exome

AF:

0.00199

Gnomad AMR exome

AF:

0.000608

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000592

AC:

AN:

1453692

Hom.:

Cov.:

AF XY:

0.0000623

AC XY:

AN XY:

722626

show subpopulations

African (AFR)

AF:

0.00132

AC:

AN:

33362

American (AMR)

AF:

0.000504

AC:

AN:

43666

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25960

East Asian (EAS)

AF:

0.00

AC:

AN:

39372

South Asian (SAS)

AF:

0.00

AC:

AN:

85152

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51618

Middle Eastern (MID)

AF:

0.000348

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.00000541

AC:

AN:

1108756

Other (OTH)

AF:

0.000200

AC:

AN:

60056

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.455

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.000663

AC:

101

AN:

152354

Hom.:

Cov.:

AF XY:

0.000792

AC XY:

AN XY:

74510

show subpopulations

African (AFR)

AF:

0.00192

AC:

AN:

41596

American (AMR)

AF:

0.00124

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000172

Hom.:

Bravo

AF:

0.000574

ESP6500AA

AF:

0.00228

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000223

AC:

ClinVar

Significance: Benign

Submissions summary: Uncertain:1Benign:7

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not specified

Benign:2

Sep 29, 2015

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

proposed classification - variant undergoing re-assessment, contact laboratory

Jul 08, 2019

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: MAP2K2 c.844C>T (p.Pro282Ser) results in a non-conservative amino acid change located in the Protein kinase domain (IPR000719) of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00025 in 263182 control chromosomes including one homozygote, predominantly at a frequency of 0.0018 within the African or African-American subpopulation in the gnomAD database. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 720 fold of the estimated maximal expected allele frequency for a pathogenic variant in MAP2K2 causing Noonan Syndrome and Related Conditions phenotype (2.5e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no occurrence of c.844C>T in individuals affected with Noonan Syndrome and Related Conditions and no experimental evidence demonstrating its impact on protein function have been reported. Two ClinVar submissions including one expert panel (ClinGen RASopathy Variant Curation) (evaluation after 2014) cite the variant as benign. Based on the evidence outlined above, the variant was classified as benign.

RASopathy

Benign:2

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Dec 03, 2024

ClinGen RASopathy Variant Curation Expert Panel

Significance:Benign

Review Status:reviewed by expert panel

Collection Method:curation

The c.844C>T variant in the MAP2K2 gene is a missense variant predicted to cause substitution of proline by serine at amino acid 282 (p.Pro282Ser). The filtering allele frequency in gnomAD v2.1.1 is 0.001415 (42/22756 alleles) in the African/African American population, meeting the criterion for BA1. The computational predictor REVEL gives a score of 0.072, which predicts no impact on protein function (BP4). This variant has been identified in a patient with an alternate molecular basis for disease (BP5; GeneDx internal data; GTR ID's 26957; SCV000207963.8). In summary, this variant meets criteria to be classified as benign for autosomal dominant RASopathies based on the ACMG/AMP criteria applied, as specified by the ClinGen RASopathy Variant Curation Expert Panel: BA1, BP4, BP5 (Specification Version 2.3, 12/3/2024)

Noonan syndrome

Uncertain:1

Service de Génétique Moléculaire, Hôpital Robert Debré

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

MAP2K2-related disorder

Benign:1

Jul 01, 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).

not provided

Benign:1

Jun 03, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

Cardiovascular phenotype

Benign:1

Jun 16, 2023

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely 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.

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Benign

0.82

DEOGEN2

Benign

0.18

Eigen

Benign

-0.62

Eigen_PC

Benign

-0.49

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.019

MetaRNN

Benign

0.0092

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.96

PhyloP100

3.2

PrimateAI

Benign

0.45

PROVEAN

Benign

-1.6

REVEL

Benign

0.072

Sift

Benign

0.42

Sift4G

Benign

0.25

Polyphen

0.0010

Vest4

0.35

MVP

0.31

MPC

0.45

ClinPred

0.0063

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.097

gMVP

0.49

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over