Genetic Variant NM_002755.4:c.237C>T (chr15-66435183-C-T) – ACMG Classification: Benign (-18 pts)

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 0P and 18B. BP4BP6_Very_StrongBP7BS1BS2

The NM_002755.4(MAP2K1):c.237C>T(p.Gly79Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000289 in 1,614,010 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: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00029 ( 0 hom. )

Consequence

MAP2K1
NM_002755.4 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -2.26

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

cardiofaciocutaneous syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
cardiofaciocutaneous syndrome 3
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
Noonan syndrome with multiple lentigines
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Genomics England PanelApp, ClinGen
Noonan syndrome
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
Costello syndrome
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
Noonan syndrome-like disorder with loose anagen hair
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

MAP2K1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

BP4

Computational evidence support a benign effect (REVEL=0.233).

BP6

Variant 15-66435183-C-T is Benign according to our data. Variant chr15-66435183-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 40782.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-2.26 with no splicing effect.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000243 (37/152138) while in subpopulation SAS AF = 0.000416 (2/4806). AF 95% confidence interval is 0.000207. There are 0 homozygotes in GnomAd4. There are 15 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 37 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002755.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAP2K1	NM_002755.4	MANE Select	c.237C>T	p.Gly79Gly	synonymous	Exon 2 of 11	NP_002746.1	Q02750-1
	MAP2K1	NM_001411065.1		c.171C>T	p.Gly57Gly	synonymous	Exon 2 of 10	NP_001397994.1	A0A8I5KYS7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MAP2K1	ENST00000307102.10	TSL:1 MANE Select	c.237C>T	p.Gly79Gly	synonymous	Exon 2 of 11	ENSP00000302486.5	Q02750-1
MAP2K1	ENST00000685172.1		c.237C>T	p.Gly79Gly	synonymous	Exon 2 of 10	ENSP00000509604.1	A0A8I5KYB4
MAP2K1	ENST00000689951.1		c.237C>T	p.Gly79Gly	synonymous	Exon 2 of 12	ENSP00000509308.1	A0A8I5KRX5

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152020

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000416

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000309

Gnomad OTH

AF:

0.000480

GnomAD2 exomes

AF:

0.000159

AC:

AN:

251440

AF XY:

0.000155

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000237

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000293

AC:

429

AN:

1461872

Hom.:

Cov.:

AF XY:

0.000263

AC XY:

191

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.000239

AC:

AN:

33480

American (AMR)

AF:

0.000157

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000174

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000350

AC:

389

AN:

1111998

Other (OTH)

AF:

0.000149

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

111

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.000243

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74374

show subpopulations

African (AFR)

AF:

0.000289

AC:

AN:

41530

American (AMR)

AF:

0.0000655

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.000416

AC:

AN:

4806

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000309

AC:

AN:

67984

Other (OTH)

AF:

0.000475

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

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:

0.000196

Hom.:

Bravo

AF:

0.000223

EpiCase

AF:

0.000436

EpiControl

AF:

0.000415

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (4)

Cardiovascular phenotype (1)

Melorheostosis;C3809006:Cardiofaciocutaneous syndrome 3;C4551602:Noonan syndrome 1 (1)

Noonan syndrome and Noonan-related syndrome (1)

not provided (1)

RASopathy (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.45

CADD

Benign

1.4

(source)

DANN

Benign

0.60

PhyloP100

-2.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=96/4

polymorphism

(source)

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over