3-50617596-G-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001243925.2(MAPKAPK3):c.31G>C(p.Gly11Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000139 in 1,441,318 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G11C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MAPKAPK3
NM_001243925.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.508

Publications

0 publications found

Variant links:

Genes affected

MAPKAPK3 (HGNC:6888): (MAPK activated protein kinase 3) This gene encodes a member of the Ser/Thr protein kinase family. This kinase functions as a mitogen-activated protein kinase (MAP kinase)- activated protein kinase. MAP kinases are also known as extracellular signal-regulated kinases (ERKs), act as an integration point for multiple biochemical signals. This kinase was shown to be activated by growth inducers and stress stimulation of cells. In vitro studies demonstrated that ERK, p38 MAP kinase and Jun N-terminal kinase were all able to phosphorylate and activate this kinase, which suggested the role of this kinase as an integrative element of signaling in both mitogen and stress responses. This kinase was reported to interact with, phosphorylate and repress the activity of E47, which is a basic helix-loop-helix transcription factor known to be involved in the regulation of tissue-specific gene expression and cell differentiation. Alternate splicing results in multiple transcript variants that encode the same protein. [provided by RefSeq, Sep 2011]

MAPKAPK3 Gene-Disease associations (from GenCC):

patterned macular dystrophy 3
Inheritance: AD, Unknown Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae)

MAPKAPK3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.051689833).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAPKAPK3	NM_001243925.2 link	c.31G>C	p.Gly11Arg	missense_variant	Exon 2 of 11	ENST00000621469.5	NP_001230854.1	Q16644A0A024R2W7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAPKAPK3	ENST00000621469.5 link	c.31G>C	p.Gly11Arg	missense_variant	Exon 2 of 11	1	NM_001243925.2	ENSP00000478922.1		Q16644

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000420

AC:

AN:

238322

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000292

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000139

AC:

AN:

1441318

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

717572

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33106

American (AMR)

AF:

0.0000224

AC:

AN:

44552

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25918

East Asian (EAS)

AF:

0.00

AC:

AN:

39586

South Asian (SAS)

AF:

0.00

AC:

AN:

85728

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52244

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4512

European-Non Finnish (NFE)

AF:

9.12e-7

AC:

AN:

1096076

Other (OTH)

AF:

0.00

AC:

AN:

59596

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000203), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Nov 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 11 of the MAPKAPK3 protein (p.Gly11Arg). This variant is present in population databases (no rsID available, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with MAPKAPK3-related conditions. ClinVar contains an entry for this variant (Variation ID: 2132227). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Benign

0.69

DEOGEN2

Benign

0.090

T;T;T;T;T

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.071

LIST_S2

Benign

0.76

.;T;T;.;T

M_CAP

Benign

0.040

MetaRNN

Benign

0.052

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

N;.;N;N;.

PhyloP100

0.51

PrimateAI

Uncertain

0.48

PROVEAN

Benign

0.56

N;N;.;N;N

REVEL

Benign

0.055

Sift

Uncertain

0.021

D;D;.;D;D

Sift4G

Benign

0.53

T;T;T;T;T

Polyphen

0.010

B;.;B;B;.

Vest4

0.14

MutPred

0.22

Loss of loop (P = 0.0128);Loss of loop (P = 0.0128);Loss of loop (P = 0.0128);Loss of loop (P = 0.0128);Loss of loop (P = 0.0128);

MVP

0.35

MPC

0.57

ClinPred

0.043

GERP RS

-0.37

PromoterAI

-0.11

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.11

gMVP

0.24

Mutation Taster

=99/1

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over