Genetic Variant MED22:p.Gly192Ser (chr9-133341534-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_133640.5(MED22):c.574G>A(p.Gly192Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000281 in 1,532,950 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00030 ( 0 hom. )

Consequence

MED22
NM_133640.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.171

Variant links:

Genes affected

MED22 (HGNC:11477): (mediator complex subunit 22) This gene encodes a protein component of the mediator complex, which functions in the regulation of transcription by bridging interactions between gene-specific regulatory factors, RNA polymerase II, and general transcription factors. Alternatively spliced transcript variants encoding different isoforms have been observed. [provided by RefSeq, Jul 2013]

MED22 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.033036828).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MED22	NM_133640.5 link	c.574G>A	p.Gly192Ser	missense_variant	Exon 5 of 5	ENST00000343730.10	NP_598395.1	Q15528-1A0A024R8C5
MED22	NM_181491.3 link	c.*2581G>A		3_prime_UTR_variant	Exon 4 of 4		NP_852468.1	Q15528-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MED22	ENST00000343730.10 link	c.574G>A	p.Gly192Ser	missense_variant	Exon 5 of 5	1	NM_133640.5	ENSP00000342343.5	Q15528-1
MED22	ENST00000610888 link	c.*2581G>A		3_prime_UTR_variant	Exon 4 of 4	1		ENSP00000478773.1	Q15528-2
MED22	ENST00000614493 link	c.*2581G>A		3_prime_UTR_variant	Exon 4 of 4	2		ENSP00000481493.1	Q15528-2
MED22	ENST00000610672.4 link	c.574G>A	p.Gly192Ser	missense_variant	Exon 5 of 5	2		ENSP00000482438.1	Q15528-1

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000667

AC:

AN:

179966

Hom.:

AF XY:

0.0000601

AC XY:

AN XY:

99768

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:

0.000135

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000303

AC:

418

AN:

1380734

Hom.:

Cov.:

AF XY:

0.000276

AC XY:

189

AN XY:

684444

show subpopulations

Gnomad4 AFR exome

AF:

0.0000358

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:

0.000373

Gnomad4 OTH exome

AF:

0.000228

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000756

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000742

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.574G>A (p.G192S) alteration is located in exon 5 (coding exon 4) of the MED22 gene. This alteration results from a G to A substitution at nucleotide position 574, causing the glycine (G) at amino acid position 192 to be replaced by a serine (S). 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

Benign

0.067

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.67

CADD

Benign

3.5

DANN

Benign

0.64

DEOGEN2

Benign

0.010

T;T

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.034

LIST_S2

Benign

0.60

.;T

M_CAP

Benign

0.0070

MetaRNN

Benign

0.033

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-1.2

N;N

PrimateAI

Benign

0.42

PROVEAN

Benign

-0.10

.;N

REVEL

Benign

0.014

Sift

Benign

0.25

.;T

Sift4G

Benign

0.12

T;T

Polyphen

0.0

B;B

Vest4

0.049

MVP

0.13

ClinPred

0.011

GERP RS

-1.6

Varity_R

0.019

gMVP

0.19

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

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