rs147354926

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_005120.3(MED12):c.5650G>A(p.Gly1884Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00117 in 1,209,022 control chromosomes in the GnomAD database, including 8 homozygotes. There are 398 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. G1884G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0062 ( 5 hom., 184 hem., cov: 23)

Exomes 𝑓: 0.00066 ( 3 hom. 214 hem. )

Consequence

MED12
NM_005120.3 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5O:1

Conservation

PhyloP100: 0.793

Variant links:

Genes affected

MED12 (HGNC:11957): (mediator complex subunit 12) The initiation of transcription is controlled in part by a large protein assembly known as the preinitiation complex. A component of this preinitiation complex is a 1.2 MDa protein aggregate called Mediator. This Mediator component binds with a CDK8 subcomplex which contains the protein encoded by this gene, mediator complex subunit 12 (MED12), along with MED13, CDK8 kinase, and cyclin C. The CDK8 subcomplex modulates Mediator-polymerase II interactions and thereby regulates transcription initiation and reinitation rates. The MED12 protein is essential for activating CDK8 kinase. Defects in this gene cause X-linked Opitz-Kaveggia syndrome, also known as FG syndrome, and Lujan-Fryns syndrome. [provided by RefSeq, Aug 2009]

MED12 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

PP2

Missense variant where missense usually causes diseases, MED12

BP4

Computational evidence support a benign effect (MetaRNN=0.0037756264).

BP6

Variant X-71137285-G-A is Benign according to our data. Variant chrX-71137285-G-A is described in ClinVar as [Benign]. Clinvar id is 129593.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-71137285-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00615 (687/111703) while in subpopulation AFR AF= 0.0214 (659/30740). AF 95% confidence interval is 0.0201. There are 5 homozygotes in gnomad4. There are 184 alleles in male gnomad4 subpopulation. Median coverage is 23. This position pass quality control queck.

BS2

High Homozygotes in GnomAd at 5 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MED12	NM_005120.3 linkuse as main transcript	c.5650G>A	p.Gly1884Ser	missense_variant	39/45	ENST00000374080.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MED12	ENST00000374080.8 linkuse as main transcript	c.5650G>A	p.Gly1884Ser	missense_variant	39/45	1	NM_005120.3	P4	Q93074-1

Frequencies

GnomAD3 genomes

AF:

0.00613

AC:

684

AN:

111651

Hom.:

Cov.:

AF XY:

0.00541

AC XY:

183

AN XY:

33835

show subpopulations

Gnomad AFR

AF:

0.0214

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00208

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:

0.00397

GnomAD3 exomes

AF:

0.00187

AC:

338

AN:

180651

Hom.:

AF XY:

0.00130

AC XY:

AN XY:

67091

show subpopulations

Gnomad AFR exome

AF:

0.0240

Gnomad AMR exome

AF:

0.00139

Gnomad ASJ exome

AF:

0.000134

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000124

Gnomad OTH exome

AF:

0.000225

GnomAD4 exome

AF:

0.000659

AC:

723

AN:

1097319

Hom.:

Cov.:

AF XY:

0.000590

AC XY:

214

AN XY:

362711

show subpopulations

Gnomad4 AFR exome

AF:

0.0226

Gnomad4 AMR exome

AF:

0.00139

Gnomad4 ASJ exome

AF:

0.000103

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000369

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000119

Gnomad4 OTH exome

AF:

0.00130

GnomAD4 genome

AF:

0.00615

AC:

687

AN:

111703

Hom.:

Cov.:

AF XY:

0.00543

AC XY:

184

AN XY:

33897

show subpopulations

Gnomad4 AFR

AF:

0.0214

Gnomad4 AMR

AF:

0.00208

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:

0.00392

Alfa

AF:

0.000674

Hom.:

Bravo

AF:

0.00699

ESP6500AA

AF:

0.0191

AC:

ESP6500EA

AF:

0.000307

AC:

ExAC

AF:

0.00185

AC:

224

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Benign

Submissions summary: Benign:5Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2Other:1

not provided, no classification provided	reference population	ITMI	Sep 19, 2013	- -
Likely benign, no assertion criteria provided	clinical testing	Genetic Services Laboratory, University of Chicago	-	Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 17, 2014	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Familial thoracic aortic aneurysm and aortic dissection

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 07, 2015

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Jun 12, 2015

- -

FG syndrome

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.60

Cadd

Benign

Dann

Benign

0.94

DEOGEN2

Benign

0.17

T;.;T

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.80

T;T;T

MetaRNN

Benign

0.0038

T;T;T

MetaSVM

Benign

-1.0

MutationTaster

Benign

1.0

P;P;P

PrimateAI

Benign

0.43

REVEL

Benign

0.027

Sift4G

Benign

0.15

T;T;T

Polyphen

0.0060

B;B;B

Vest4

0.17

MVP

0.63

MPC

0.72

ClinPred

0.0020

GERP RS

1.4

Varity_R

0.061

gMVP

0.32

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