Genetic Variant MED28:p.Ala2Glu (chr4-17614659-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_025205.5(MED28):c.5C>A(p.Ala2Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000747 in 1,605,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

MED28
NM_025205.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.33

Variant links:

Genes affected

MED28 (HGNC:24628): (mediator complex subunit 28) Predicted to enable actin binding activity. Predicted to act upstream of or within negative regulation of smooth muscle cell differentiation and stem cell population maintenance. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

MED28 links:

MED28-DT (HGNC:55567): (MED28 divergent transcript)

MED28-DT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.806

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MED28	NM_025205.5 link	c.5C>A	p.Ala2Glu	missense_variant	Exon 1 of 4	ENST00000237380.12	NP_079481.2	Q9H204
MED28-DT	NR_186330.1 link	n.-79G>T		upstream_gene_variant
MED28-DT	NR_186331.1 link	n.-79G>T		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MED28	ENST00000237380.12 link	c.5C>A	p.Ala2Glu	missense_variant	Exon 1 of 4	1	NM_025205.5	ENSP00000237380.6		Q9H204

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000840

AC:

AN:

238014

Hom.:

AF XY:

0.00

AC XY:

AN XY:

130118

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000185

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000757

AC:

AN:

1453560

Hom.:

Cov.:

AF XY:

0.0000111

AC XY:

AN XY:

723124

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:

0.00000992

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74344

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000312

Hom.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 20, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.5C>A (p.A2E) alteration is located in exon 1 (coding exon 1) of the MED28 gene. This alteration results from a C to A substitution at nucleotide position 5, causing the alanine (A) at amino acid position 2 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.72

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Uncertain

0.070

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.15

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.70

M_CAP

Benign

0.072

MetaRNN

Pathogenic

0.81

MetaSVM

Benign

-0.49

MutationAssessor

Benign

0.81

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-0.60

REVEL

Benign

0.27

Sift

Uncertain

0.014

Sift4G

Benign

0.082

Polyphen

1.0

Vest4

0.80

MVP

0.60

MPC

0.078

ClinPred

0.85

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.28

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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