rs184162709

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_005120.3(MED12):​c.3699G>A​(p.Ala1233Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000244 in 1,184,566 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 86 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 0.0013 ( 0 hom., 37 hem., cov: 23)
Exomes 𝑓: 0.00014 ( 0 hom. 49 hem. )

Consequence

MED12
NM_005120.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.207

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: G2P, Labcorp Genetics (formerly Invitae), 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: Orphanet, Labcorp Genetics (formerly Invitae), G2P
  • blepharophimosis - intellectual disability syndrome, MKB type
    Inheritance: XL Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • cholestasis-pigmentary retinopathy-cleft palate syndrome
    Inheritance: XL Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP6
Variant X-71129687-G-A is Benign according to our data. Variant chrX-71129687-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 381901.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.207 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00129 (144/111838) while in subpopulation AFR AF = 0.00416 (128/30760). AF 95% confidence interval is 0.00357. There are 0 homozygotes in GnomAd4. There are 37 alleles in the male GnomAd4 subpopulation. Median coverage is 23. This position passed quality control check.
BS2
High Hemizygotes in GnomAd4 at 37 XL gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005120.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MED12
NM_005120.3
MANE Select
c.3699G>Ap.Ala1233Ala
synonymous
Exon 27 of 45NP_005111.2Q93074-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MED12
ENST00000374080.8
TSL:1 MANE Select
c.3699G>Ap.Ala1233Ala
synonymous
Exon 27 of 45ENSP00000363193.3Q93074-1
MED12
ENST00000374102.6
TSL:1
c.3699G>Ap.Ala1233Ala
synonymous
Exon 27 of 45ENSP00000363215.2Q93074-2
MED12
ENST00000938012.1
c.3741G>Ap.Ala1247Ala
synonymous
Exon 27 of 45ENSP00000608071.1

Frequencies

GnomAD3 genomes
AF:
0.00127
AC:
142
AN:
111787
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.00411
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00114
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:
0.0000753
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000226
AC:
31
AN:
137188
AF XY:
0.000140
show subpopulations
Gnomad AFR exome
AF:
0.00270
Gnomad AMR exome
AF:
0.0000447
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000521
Gnomad OTH exome
AF:
0.000550
GnomAD4 exome
AF:
0.000135
AC:
145
AN:
1072728
Hom.:
0
Cov.:
32
AF XY:
0.000140
AC XY:
49
AN XY:
349690
show subpopulations
African (AFR)
AF:
0.00397
AC:
102
AN:
25687
American (AMR)
AF:
0.000194
AC:
6
AN:
30899
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
18811
East Asian (EAS)
AF:
0.00
AC:
0
AN:
28885
South Asian (SAS)
AF:
0.0000391
AC:
2
AN:
51213
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
38890
Middle Eastern (MID)
AF:
0.000507
AC:
2
AN:
3945
European-Non Finnish (NFE)
AF:
0.00000603
AC:
5
AN:
829263
Other (OTH)
AF:
0.000620
AC:
28
AN:
45135
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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
AF:
0.00129
AC:
144
AN:
111838
Hom.:
0
Cov.:
23
AF XY:
0.00109
AC XY:
37
AN XY:
34042
show subpopulations
African (AFR)
AF:
0.00416
AC:
128
AN:
30760
American (AMR)
AF:
0.00114
AC:
12
AN:
10568
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2655
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3552
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2674
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6097
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
215
European-Non Finnish (NFE)
AF:
0.0000753
AC:
4
AN:
53117
Other (OTH)
AF:
0.00
AC:
0
AN:
1512
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
5
10
16
21
26
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00114
Hom.:
7
Bravo
AF:
0.00156

ClinVar

ClinVar submissions
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
3
not provided (3)
-
-
1
Familial thoracic aortic aneurysm and aortic dissection (1)
-
-
1
FG syndrome (1)
-
-
1
MED12-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
4.0
DANN
Benign
0.84
PhyloP100
-0.21
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=98/2
polymorphism

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

Other links and lift over

dbSNP: rs184162709; hg19: chrX-70349537; API