chrX-71122864-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_005120.3(MED12):ā€‹c.1475A>Gā€‹(p.Asp492Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000182 in 1,097,845 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 23)
Exomes š‘“: 0.0000018 ( 0 hom. 0 hem. )

Consequence

MED12
NM_005120.3 missense

Scores

2
7
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.79
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), MED12. . Gene score misZ: 6.5797 (greater than the threshold 3.09). The gene has 37 curated pathogenic missense variants (we use a threshold of 10). The gene has 108 curated benign missense variants. GenCC has associacion of the gene with MED12-related intellectual disability syndrome, X-linked intellectual disability with marfanoid habitus, blepharophimosis - intellectual disability syndrome, MKB type, FG syndrome 1, cholestasis-pigmentary retinopathy-cleft palate syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.2567013).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MED12NM_005120.3 linkc.1475A>G p.Asp492Gly missense_variant 10/45 ENST00000374080.8 NP_005111.2 Q93074-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MED12ENST00000374080.8 linkc.1475A>G p.Asp492Gly missense_variant 10/451 NM_005120.3 ENSP00000363193.3 Q93074-1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000551
AC:
1
AN:
181647
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67505
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:
0.0000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000182
AC:
2
AN:
1097845
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
363201
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:
0.00000238
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 02, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.45
BayesDel_addAF
Uncertain
0.079
D
BayesDel_noAF
Benign
-0.12
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.068
T;.;T
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D;D;D
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.26
T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Uncertain
2.1
.;M;M
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-2.7
.;D;D
REVEL
Benign
0.26
Sift
Benign
0.074
.;T;T
Sift4G
Benign
0.12
T;T;T
Polyphen
0.19
B;P;B
Vest4
0.35
MutPred
0.22
.;Gain of methylation at K491 (P = 0.091);Gain of methylation at K491 (P = 0.091);
MVP
0.79
MPC
1.2
ClinPred
0.54
D
GERP RS
5.0
Varity_R
0.61
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs1292888378; hg19: chrX-70342714; API