Genetic Variant MAP2K2:p.Ser306Arg (chr19-4099202-G-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_030662.4(MAP2K2):c.918C>A(p.Ser306Arg) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

MAP2K2
NM_030662.4 missense, splice_region

Scores

Splicing: ADA: 0.00002919

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.343

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1

In a modified_residue Phosphoserine (size 0) in uniprot entity MP2K2_HUMAN

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAP2K2	NM_030662.4 link	c.918C>A	p.Ser306Arg	missense_variant, splice_region_variant	Exon 7 of 11	ENST00000262948.10	NP_109587.1	P36507
MAP2K2	XM_047439100.1 link	c.348C>A	p.Ser116Arg	missense_variant, splice_region_variant	Exon 5 of 9		XP_047295056.1
MAP2K2	XM_006722799.3 link	c.705+1817C>A		intron_variant	Intron 6 of 8		XP_006722862.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAP2K2	ENST00000262948.10 link	c.918C>A	p.Ser306Arg	missense_variant, splice_region_variant	Exon 7 of 11	1	NM_030662.4	ENSP00000262948.4		P36507

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1447480

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

719200

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.80

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.080

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.35

T;T

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.0

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.82

T;T

M_CAP

Uncertain

0.22

MetaRNN

Uncertain

0.67

D;D

MetaSVM

Benign

-0.73

MutationAssessor

Benign

1.1

L;.

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-2.6

D;N

REVEL

Uncertain

0.56

Sift

Benign

0.042

D;D

Sift4G

Benign

0.093

T;T

Polyphen

0.016

B;.

Vest4

0.87

MutPred

0.44

Loss of glycosylation at S306 (P = 0.0016);.;

MVP

0.97

MPC

0.53

ClinPred

0.56

GERP RS

-7.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.52

gMVP

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000029

dbscSNV1_RF

Benign

0.094

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over