chr15-66387388-C-T

Position:

chr15-66387388-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP4BS2

The NM_002755.4(MAP2K1):c.41C>T(p.Ala14Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000447 in 1,565,992 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 Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A14A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000042 ( 0 hom. )

Consequence

MAP2K1
NM_002755.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.82

Variant links:

Genes affected

MAP2K1 (HGNC:6840): (mitogen-activated protein kinase kinase 1) The protein encoded by this gene is a member of the dual specificity protein kinase family, which acts as a mitogen-activated protein (MAP) kinase kinase. MAP kinases, also known as extracellular signal-regulated kinases (ERKs), act as an integration point for multiple biochemical signals. This protein kinase lies upstream of MAP kinases and stimulates the enzymatic activity of MAP kinases upon wide variety of extra- and intracellular signals. As an essential component of MAP kinase signal transduction pathway, this kinase is involved in many cellular processes such as proliferation, differentiation, transcription regulation and development. [provided by RefSeq, Jul 2008]

MAP2K1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), MAP2K1. . Gene score misZ 3.1085 (greater than the threshold 3.09). Trascript score misZ 3.7499 (greater than threshold 3.09). GenCC has associacion of gene with Noonan syndrome with multiple lentigines, cardiofaciocutaneous syndrome 1, Noonan syndrome, cardiofaciocutaneous syndrome, cardiofaciocutaneous syndrome 3, Costello syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.32499135).

BS2

High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MAP2K1	NM_002755.4 linkuse as main transcript	c.41C>T	p.Ala14Val	missense_variant	1/11	ENST00000307102.10
MAP2K1	XM_017022411.3 linkuse as main transcript	c.41C>T	p.Ala14Val	missense_variant	1/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MAP2K1	ENST00000307102.10 linkuse as main transcript	c.41C>T	p.Ala14Val	missense_variant	1/11	1	NM_002755.4	P1	Q02750-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000424

AC:

AN:

1413816

Hom.:

Cov.:

AF XY:

0.00000286

AC XY:

AN XY:

698684

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000552

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74330

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

RASopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Apr 22, 2023

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 MAP2K1 protein function. This variant has not been reported in the literature in individuals affected with MAP2K1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 14 of the MAP2K1 protein (p.Ala14Val). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Uncertain

0.075

BayesDel_noAF

Benign

-0.13

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.31

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.083

FATHMM_MKL

Benign

0.69

LIST_S2

Uncertain

0.87

M_CAP

Pathogenic

0.77

MetaRNN

Benign

0.32

MetaSVM

Uncertain

-0.13

MutationAssessor

Benign

0.55

MutationTaster

Benign

0.92

PrimateAI

Uncertain

0.76

PROVEAN

Benign

0.16

REVEL

Benign

0.26

Sift

Benign

0.055

Sift4G

Benign

0.58

Polyphen

0.0

Vest4

0.28

MutPred

0.14

Loss of glycosylation at S18 (P = 0.162);

MVP

0.78

MPC

1.3

ClinPred

0.55

GERP RS

4.1

Varity_R

0.21

gMVP

0.25

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