rs773713291

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_005120.3(MED12):c.5585G>A(p.Arg1862His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000546 in 1,098,211 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. 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. R1862C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.0000055 ( 0 hom. 1 hem. )

Failed GnomAD Quality Control

Consequence

MED12
NM_005120.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 9.07

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

FG syndrome 1
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
MED12-related intellectual disability syndrome
Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
X-linked intellectual disability with marfanoid habitus
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
blepharophimosis - intellectual disability syndrome, MKB type
Inheritance: XL Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
cholestasis-pigmentary retinopathy-cleft palate syndrome
Inheritance: XL Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

MED12 links:

ENSG00000228427 (HGNC:):

ENSG00000228427 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MED12	NM_005120.3 link	c.5585G>A	p.Arg1862His	missense_variant	Exon 39 of 45	ENST00000374080.8	NP_005111.2	Q93074-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MED12	ENST00000374080.8 link	c.5585G>A	p.Arg1862His	missense_variant	Exon 39 of 45	1	NM_005120.3	ENSP00000363193.3		Q93074-1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

111894

Hom.:

Cov.:

Gnomad AFR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000166

AC:

AN:

180566

AF XY:

0.0000149

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000738

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000124

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000546

AC:

AN:

1098211

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

363565

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26400

American (AMR)

AF:

0.00

AC:

AN:

35203

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19384

East Asian (EAS)

AF:

0.00

AC:

AN:

30205

South Asian (SAS)

AF:

0.0000369

AC:

AN:

54146

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40528

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4135

European-Non Finnish (NFE)

AF:

0.00000475

AC:

AN:

842116

Other (OTH)

AF:

0.00

AC:

AN:

46094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

111894

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34060

African (AFR)

AF:

0.00

AC:

AN:

30773

American (AMR)

AF:

0.00

AC:

AN:

10591

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2647

East Asian (EAS)

AF:

0.00

AC:

AN:

3546

South Asian (SAS)

AF:

0.00

AC:

AN:

2696

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6089

Middle Eastern (MID)

AF:

0.00

AC:

AN:

238

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53118

Other (OTH)

AF:

0.00

AC:

AN:

1512

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000248

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:1

Feb 05, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.R1862H variant (also known as c.5585G>A), located in coding exon 39 of the MED12 gene, results from a G to A substitution at nucleotide position 5585. The arginine at codon 1862 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

FG syndrome

Uncertain:1

May 06, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1862 of the MED12 protein (p.Arg1862His). This variant is present in population databases (rs773713291, gnomAD 0.008%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with MED12-related conditions. ClinVar contains an entry for this variant (Variation ID: 458820). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on MED12 protein function. 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. -

not provided

Uncertain:1

Nov 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.091

BayesDel_noAF

Benign

-0.18

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.25

T;.;T

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Benign

0.073

MetaRNN

Uncertain

0.64

D;D;D

MetaSVM

Benign

-0.42

MutationAssessor

Benign

1.9

.;L;L

PhyloP100

9.1

PrimateAI

Uncertain

0.63

PROVEAN

Uncertain

-4.0

D;N;N

REVEL

Benign

0.19

Sift

Uncertain

0.0030

D;D;D

Sift4G

Uncertain

0.051

T;D;T

Polyphen

1.0

D;D;D

Vest4

0.61

MutPred

0.32

.;Loss of methylation at R1862 (P = 0.038);Loss of methylation at R1862 (P = 0.038);

MVP

0.81

MPC

1.5

ClinPred

0.74

GERP RS

4.6

Varity_R

0.39

gMVP

0.29

Mutation Taster

=99/1

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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