chrX-71136905-C-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_005120.3(MED12):​c.5427C>T​(p.Ser1809=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000902 in 1,208,815 control chromosomes in the GnomAD database, including 1 homozygotes. There are 59 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.000097 ( 1 hom. 58 hem. )

Consequence

MED12
NM_005120.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.98
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 -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.59).
BP6
Variant X-71136905-C-T is Benign according to our data. Variant chrX-71136905-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 415263.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-1.98 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000966 (106/1097789) while in subpopulation SAS AF= 0.00127 (69/54140). AF 95% confidence interval is 0.00103. There are 1 homozygotes in gnomad4_exome. There are 58 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Hemizygotes in GnomAdExome4 at 58 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MED12NM_005120.3 linkuse as main transcriptc.5427C>T p.Ser1809= synonymous_variant 38/45 ENST00000374080.8 NP_005111.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MED12ENST00000374080.8 linkuse as main transcriptc.5427C>T p.Ser1809= synonymous_variant 38/451 NM_005120.3 ENSP00000363193 P4Q93074-1

Frequencies

GnomAD3 genomes
AF:
0.0000270
AC:
3
AN:
111026
Hom.:
0
Cov.:
22
AF XY:
0.0000301
AC XY:
1
AN XY:
33216
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000957
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000283
Gnomad SAS
AF:
0.000381
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000145
AC:
26
AN:
179930
Hom.:
0
AF XY:
0.000242
AC XY:
16
AN XY:
66118
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000739
Gnomad SAS exome
AF:
0.00110
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000497
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000966
AC:
106
AN:
1097789
Hom.:
1
Cov.:
33
AF XY:
0.000160
AC XY:
58
AN XY:
363217
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:
0.00127
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000392
Gnomad4 OTH exome
AF:
0.0000651
GnomAD4 genome
AF:
0.0000270
AC:
3
AN:
111026
Hom.:
0
Cov.:
22
AF XY:
0.0000301
AC XY:
1
AN XY:
33216
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000957
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000283
Gnomad4 SAS
AF:
0.000381
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

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

Submissions by phenotype

FG syndrome 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 19, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.59
CADD
Benign
0.30
DANN
Benign
0.79

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: rs772462354; hg19: chrX-70356755; COSMIC: COSV61345370; API