chrX-71121125-C-G

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_005120.3(MED12):ā€‹c.708C>Gā€‹(p.Thr236=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000993 in 1,208,678 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 6 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…ā˜…). Synonymous variant affecting the same amino acid position (i.e. T236T) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.000063 ( 0 hom., 3 hem., cov: 23)
Exomes š‘“: 0.0000046 ( 0 hom. 3 hem. )

Consequence

MED12
NM_005120.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.569
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant X-71121125-C-G is Benign according to our data. Variant chrX-71121125-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 435843.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.569 with no splicing effect.
BS2
High Hemizygotes in GnomAd4 at 3 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MED12NM_005120.3 linkuse as main transcriptc.708C>G p.Thr236= synonymous_variant 5/45 ENST00000374080.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MED12ENST00000374080.8 linkuse as main transcriptc.708C>G p.Thr236= synonymous_variant 5/451 NM_005120.3 P4Q93074-1

Frequencies

GnomAD3 genomes
AF:
0.0000633
AC:
7
AN:
110505
Hom.:
0
Cov.:
23
AF XY:
0.0000916
AC XY:
3
AN XY:
32735
show subpopulations
Gnomad AFR
AF:
0.000198
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000954
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
GnomAD3 exomes
AF:
0.00000550
AC:
1
AN:
181685
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67531
show subpopulations
Gnomad AFR exome
AF:
0.0000807
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000455
AC:
5
AN:
1098173
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
3
AN XY:
363531
show subpopulations
Gnomad4 AFR exome
AF:
0.0000379
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:
0.00000475
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000633
AC:
7
AN:
110505
Hom.:
0
Cov.:
23
AF XY:
0.0000916
AC XY:
3
AN XY:
32735
show subpopulations
Gnomad4 AFR
AF:
0.000198
Gnomad4 AMR
AF:
0.0000954
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:
0.00
Bravo
AF:
0.0000264

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoMay 05, 2016- -
FG syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
0.12
DANN
Benign
0.69

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: rs34668206; hg19: chrX-70340975; API