chrX-71118839-C-A
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BP4
The NM_005120.3(MED12):c.85C>A(p.Pro29Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Genomes: not found (cov: 20)
Consequence
MED12
NM_005120.3 missense
NM_005120.3 missense
Scores
2
7
7
Clinical Significance
Conservation
PhyloP100: 5.30
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 Uncertain_significance. Variant got 2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, MED12
BP4
?
Computational evidence support a benign effect (MetaRNN=0.28140897).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MED12 | NM_005120.3 | c.85C>A | p.Pro29Thr | missense_variant | 1/45 | ENST00000374080.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MED12 | ENST00000374080.8 | c.85C>A | p.Pro29Thr | missense_variant | 1/45 | 1 | NM_005120.3 | P4 |
Frequencies
GnomAD3 genomes ? Cov.: 20
GnomAD3 genomes
?
Cov.:
20
GnomAD4 exome Cov.: 30
GnomAD4 exome
Cov.:
30
GnomAD4 genome ? Cov.: 20
GnomAD4 genome
?
Cov.:
20
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Aug 03, 2023 | Not observed in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
FG syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 30, 2022 | In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MED12 protein function. ClinVar contains an entry for this variant (Variation ID: 1218735). This variant has not been reported in the literature in individuals affected with MED12-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces proline, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 29 of the MED12 protein (p.Pro29Thr). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Uncertain
Dann
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D
M_CAP
Pathogenic
D
MetaRNN
Benign
T;T
MetaSVM
Benign
T
MutationAssessor
Benign
L;L
MutationTaster
Benign
D;D;D
PrimateAI
Pathogenic
D
PROVEAN
Uncertain
D;D
REVEL
Benign
Sift
Uncertain
D;D
Sift4G
Uncertain
D;D
Polyphen
D;B
Vest4
MutPred
Gain of phosphorylation at P29 (P = 0.0311);Gain of phosphorylation at P29 (P = 0.0311);
MVP
MPC
1.8
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.