Genetic Variant MAP2K2:c.705+11G>T (chr19-4101008-C-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_030662.4(MAP2K2):c.705+11G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000714 in 1,401,452 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

MAP2K2
NM_030662.4 intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0230

Publications

0 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:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BP6

Variant 19-4101008-C-A is Benign according to our data. Variant chr19-4101008-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 2969795.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
MAP2K2	NM_030662.4 link	c.705+11G>T	intron_variant	Intron 6 of 10	ENST00000262948.10	NP_109587.1	P36507
MAP2K2	NM_001440688.1 link	c.705+11G>T	intron_variant	Intron 6 of 8		NP_001427617.1
MAP2K2	NM_001440689.1 link	c.135+11G>T	intron_variant	Intron 4 of 8		NP_001427618.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAP2K2	ENST00000262948.10 link	c.705+11G>T		intron_variant	Intron 6 of 10	1	NM_030662.4	ENSP00000262948.4		P36507

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.14e-7

AC:

AN:

1401452

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

691602

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31730

American (AMR)

AF:

0.00

AC:

AN:

35912

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25224

East Asian (EAS)

AF:

0.00

AC:

AN:

36110

South Asian (SAS)

AF:

0.00

AC:

AN:

79482

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49510

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4196

European-Non Finnish (NFE)

AF:

9.25e-7

AC:

AN:

1081194

Other (OTH)

AF:

0.00

AC:

AN:

58094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

RASopathy

Benign:1

Apr 08, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely 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

-0.91

CADD

Benign

0.057

(source)

DANN

Benign

0.62

PhyloP100

0.023

PromoterAI

0.0065

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.3

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over