rs747709090

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_002755.4(MAP2K1):​c.439-8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000303 in 1,584,508 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

MAP2K1
NM_002755.4 splice_region, intron

Scores

2
Splicing: ADA: 0.0002488
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -1.50

Publications

1 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: Orphanet, ClinGen
  • cardiofaciocutaneous syndrome 3
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp
  • 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 15-66443272-G-A is Benign according to our data. Variant chr15-66443272-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 40751.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MAP2K1NM_002755.4 linkc.439-8G>A splice_region_variant, intron_variant Intron 3 of 10 ENST00000307102.10 NP_002746.1 Q02750-1A4QPA9
MAP2K1NM_001411065.1 linkc.373-1384G>A intron_variant Intron 3 of 9 NP_001397994.1
MAP2K1XM_011521783.4 linkc.373-8G>A splice_region_variant, intron_variant Intron 3 of 10 XP_011520085.1 B4DFY5
MAP2K1XM_017022411.3 linkc.439-1384G>A intron_variant Intron 3 of 9 XP_016877900.1 Q02750-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MAP2K1ENST00000307102.10 linkc.439-8G>A splice_region_variant, intron_variant Intron 3 of 10 1 NM_002755.4 ENSP00000302486.5 Q02750-1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
151946
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000358
AC:
9
AN:
251406
AF XY:
0.0000294
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000791
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000293
AC:
42
AN:
1432562
Hom.:
0
Cov.:
28
AF XY:
0.0000238
AC XY:
17
AN XY:
714692
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32960
American (AMR)
AF:
0.0000224
AC:
1
AN:
44686
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25940
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39550
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85666
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53378
Middle Eastern (MID)
AF:
0.000175
AC:
1
AN:
5706
European-Non Finnish (NFE)
AF:
0.0000369
AC:
40
AN:
1085332
Other (OTH)
AF:
0.00
AC:
0
AN:
59344
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000395
AC:
6
AN:
151946
Hom.:
0
Cov.:
31
AF XY:
0.0000404
AC XY:
3
AN XY:
74212
show subpopulations
African (AFR)
AF:
0.0000242
AC:
1
AN:
41372
American (AMR)
AF:
0.00
AC:
0
AN:
15242
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4812
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10558
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
67988
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000282
Hom.:
0
Bravo
AF:
0.0000302
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Feb 25, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

c.439-8G>A in intron 3 of MAP2K1: This variant is not expected to have clinical significance because a change at this position does not diverge from the splice consensus sequence and is therefore unlikely to impact splicing. Furthermore, sp lice variants are not a known mechanism of disease for MAP2K1-associated Noonan syndrome. It has been identified in 4/66606 European chromosomes by the Exome Ag gregation Consortium (ExAC, http://exac.broadinstitute.org). -

MAP2K1-related disorder Benign:1
Jun 15, 2020
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided Benign:1
Mar 03, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

RASopathy Benign:1
Feb 02, 2024
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
-0.85
CADD
Benign
0.15
DANN
Benign
0.81
PhyloP100
-1.5

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00025
dbscSNV1_RF
Benign
0.010
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

Other links and lift over

dbSNP: rs747709090; hg19: chr15-66735610; COSMIC: COSV105880723; API