rs775072642

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP6_ModerateBS2

The NM_005120.3(MED12):​c.380C>T​(p.Thr127Met) variant causes a missense change. The variant allele was found at a frequency of 0.00000638 in 1,097,852 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. Variant has been reported in ClinVar as Benign (★). Synonymous variant affecting the same amino acid position (i.e. T127T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 22)
Exomes 𝑓: 0.0000064 ( 0 hom. 3 hem. )

Consequence

MED12
NM_005120.3 missense

Scores

1
5
11

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 6.10
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 Likely_benign. Variant got -5 ACMG points.

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). GenCC has associacion of 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.
BP6
Variant X-71119861-C-T is Benign according to our data. Variant chrX-71119861-C-T is described in ClinVar as [Benign]. Clinvar id is 240097.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAdExome4 at 3 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MED12NM_005120.3 linkuse as main transcriptc.380C>T p.Thr127Met missense_variant 3/45 ENST00000374080.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MED12ENST00000374080.8 linkuse as main transcriptc.380C>T p.Thr127Met missense_variant 3/451 NM_005120.3 P4Q93074-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD3 exomes
AF:
0.0000166
AC:
3
AN:
180669
Hom.:
0
AF XY:
0.0000451
AC XY:
3
AN XY:
66549
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000740
Gnomad SAS exome
AF:
0.000106
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000638
AC:
7
AN:
1097852
Hom.:
0
Cov.:
32
AF XY:
0.00000826
AC XY:
3
AN XY:
363210
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000331
Gnomad4 SAS exome
AF:
0.0000370
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000475
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
22
ExAC
AF:
0.0000331
AC:
4

ClinVar

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

Submissions by phenotype

FG syndrome 1 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 24, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.062
T
BayesDel_noAF
Benign
-0.11
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.37
.;T
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Pathogenic
0.56
D
MetaRNN
Uncertain
0.47
T;T
MetaSVM
Benign
-0.87
T
MutationAssessor
Benign
0.20
N;N
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
-1.0
N;N
REVEL
Benign
0.22
Sift
Benign
0.21
T;T
Sift4G
Benign
0.27
T;T
Polyphen
1.0
D;D
Vest4
0.15
MVP
0.92
MPC
1.5
ClinPred
0.34
T
GERP RS
4.9
Varity_R
0.24
gMVP
0.75

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.

Other links and lift over

dbSNP: rs775072642; hg19: chrX-70339711; COSMIC: COSV100376700; API