19-49836291-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_030973.4(MED25):​c.2031G>A​(p.Ala677=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00967 in 1,611,934 control chromosomes in the GnomAD database, including 117 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.014 ( 24 hom., cov: 33)
Exomes 𝑓: 0.0092 ( 93 hom. )

Consequence

MED25
NM_030973.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -1.73
Variant links:
Genes affected
MED25 (HGNC:28845): (mediator complex subunit 25) This gene encodes a component of the transcriptional coactivator complex termed the Mediator complex. This complex is required for transcription of most RNA polymerase II-dependent genes. The encoded protein plays a role in chromatin modification and in preinitiation complex assembly. Mutations in this gene are associated with Charcot-Marie-Tooth disease type 2B2. [provided by RefSeq, Apr 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 19-49836291-G-A is Benign according to our data. Variant chr19-49836291-G-A is described in ClinVar as [Benign]. Clinvar id is 138200.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-49836291-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-1.73 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0143 (2172/152208) while in subpopulation AFR AF= 0.0285 (1182/41540). AF 95% confidence interval is 0.0271. There are 24 homozygotes in gnomad4. There are 965 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 24 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MED25NM_030973.4 linkuse as main transcriptc.2031G>A p.Ala677= synonymous_variant 17/18 ENST00000312865.10
MED25NM_001378355.1 linkuse as main transcriptc.2031G>A p.Ala677= synonymous_variant 17/18

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MED25ENST00000312865.10 linkuse as main transcriptc.2031G>A p.Ala677= synonymous_variant 17/181 NM_030973.4 Q71SY5-1

Frequencies

GnomAD3 genomes
AF:
0.0142
AC:
2167
AN:
152090
Hom.:
24
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0284
Gnomad AMI
AF:
0.0373
Gnomad AMR
AF:
0.0133
Gnomad ASJ
AF:
0.0124
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000829
Gnomad FIN
AF:
0.00104
Gnomad MID
AF:
0.0285
Gnomad NFE
AF:
0.00958
Gnomad OTH
AF:
0.0177
GnomAD3 exomes
AF:
0.00817
AC:
1965
AN:
240568
Hom.:
19
AF XY:
0.00765
AC XY:
1011
AN XY:
132112
show subpopulations
Gnomad AFR exome
AF:
0.0306
Gnomad AMR exome
AF:
0.00754
Gnomad ASJ exome
AF:
0.00951
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00135
Gnomad FIN exome
AF:
0.00186
Gnomad NFE exome
AF:
0.00960
Gnomad OTH exome
AF:
0.0118
GnomAD4 exome
AF:
0.00919
AC:
13412
AN:
1459726
Hom.:
93
Cov.:
32
AF XY:
0.00892
AC XY:
6479
AN XY:
726146
show subpopulations
Gnomad4 AFR exome
AF:
0.0300
Gnomad4 AMR exome
AF:
0.00753
Gnomad4 ASJ exome
AF:
0.0103
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00147
Gnomad4 FIN exome
AF:
0.00215
Gnomad4 NFE exome
AF:
0.00973
Gnomad4 OTH exome
AF:
0.0113
GnomAD4 genome
AF:
0.0143
AC:
2172
AN:
152208
Hom.:
24
Cov.:
33
AF XY:
0.0130
AC XY:
965
AN XY:
74428
show subpopulations
Gnomad4 AFR
AF:
0.0285
Gnomad4 AMR
AF:
0.0133
Gnomad4 ASJ
AF:
0.0124
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000829
Gnomad4 FIN
AF:
0.00104
Gnomad4 NFE
AF:
0.00958
Gnomad4 OTH
AF:
0.0175
Alfa
AF:
0.0106
Hom.:
5
Bravo
AF:
0.0156
Asia WGS
AF:
0.00346
AC:
13
AN:
3478
EpiCase
AF:
0.00889
EpiControl
AF:
0.0107

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJan 20, 2014This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Charcot-Marie-Tooth disease Benign:1
Benign, criteria provided, single submitterclinical testingMolecular Genetics Laboratory, London Health Sciences Centre-- -
Charcot-Marie-Tooth disease type 2 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeFeb 01, 2024- -
Congenital cataract-microcephaly-nevus flammeus simplex-severe intellectual disability syndrome Benign:1
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesOct 20, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
6.0
DANN
Benign
0.48
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs57854058; hg19: chr19-50339548; COSMIC: COSV57203835; COSMIC: COSV57203835; API