rs1057519733

Positions:

• chr15-66481793-G-A
• chr15-66481793-G-C
• chr15-66481793-G-T

Variant summary

Our verdict is Pathogenic. Variant got 17 ACMG points: 17P and 0B. PM1 PM2 PM5 PP2 PP3_Moderate PP5_Very_Strong

The NM_002755.4(MAP2K1):​c.607G>A​(p.Glu203Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E203G) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MAP2K1 NM_002755.4 missense
• Clinical Significance: Likely pathogenic criteria provided, multiple submitters, no conflicts P:3
• Conservation: PhyloP100: 9.88

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]

ACMG classification

Verdict is Pathogenic. Variant got 17 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_002755.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr15-66481794-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 167260.Status of the report is reviewed_by_expert_panel, 3 stars.
• PP2: Missense variant where missense usually causes diseases, MAP2K1
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.874
• PP5: Variant 15-66481793-G-A is Pathogenic according to our data. Variant chr15-66481793-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 375982.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MAP2K1	NM_002755.4	c.607G>A	p.Glu203Lys	missense_variant	6/11	ENST00000307102.10
MAP2K1	NM_001411065.1	c.463G>A	p.Glu155Lys	missense_variant	5/10
MAP2K1	XM_011521783.4	c.541G>A	p.Glu181Lys	missense_variant	6/11
MAP2K1	XM_017022411.3	c.529G>A	p.Glu177Lys	missense_variant	5/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MAP2K1	ENST00000307102.10	c.607G>A	p.Glu203Lys	missense_variant	6/11	1	NM_002755.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Inborn genetic diseases Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 02, 2018

- -

Cardiofaciocutaneous syndrome 3 Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Kasturba Medical College, Manipal, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India

-

- -

Melanoma Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

Oct 02, 2014

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.23
CADD	Pathogenic	33
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.43	T;T
Eigen	Uncertain	0.50
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;D
M_CAP	Benign	0.077	D
MetaRNN	Pathogenic	0.87	D;D
MetaSVM	Benign	-0.64	T
MutationAssessor	Benign	0.96	L;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.93	D
PROVEAN	Uncertain	-3.8	D;D
REVEL	Uncertain	0.62
Sift	Uncertain	0.010	D;D
Sift4G	Uncertain	0.039	D;T
Polyphen		0.97	D;.
Vest4		0.86
MutPred		0.70		Gain of MoRF binding (P = 0.0084);.;
MVP		0.95
MPC		2.6
ClinPred		0.98	D
GERP RS		5.5
Varity_R		0.89
gMVP		0.93

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

Other links and lift over

dbSNP: rs1057519733; hg19: chr15-66774131; COSMIC: COSV61068654;