rs61742955

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_030973.4(MED25):​c.93C>T​(p.Tyr31=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000732 in 1,614,140 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0038 ( 3 hom., cov: 33)
Exomes 𝑓: 0.00041 ( 2 hom. )

Consequence

MED25
NM_030973.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 2.78
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 -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 19-49818434-C-T is Benign according to our data. Variant chr19-49818434-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 415890.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-49818434-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=2.78 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00381 (581/152324) while in subpopulation AFR AF= 0.0134 (556/41566). AF 95% confidence interval is 0.0125. There are 3 homozygotes in gnomad4. There are 276 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MED25NM_030973.4 linkuse as main transcriptc.93C>T p.Tyr31= synonymous_variant 1/18 ENST00000312865.10
MED25NM_001378355.1 linkuse as main transcriptc.93C>T p.Tyr31= synonymous_variant 1/18

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MED25ENST00000312865.10 linkuse as main transcriptc.93C>T p.Tyr31= synonymous_variant 1/181 NM_030973.4 Q71SY5-1

Frequencies

GnomAD3 genomes
AF:
0.00374
AC:
570
AN:
152206
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0132
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00124
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000413
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00191
GnomAD3 exomes
AF:
0.00106
AC:
267
AN:
250840
Hom.:
2
AF XY:
0.000796
AC XY:
108
AN XY:
135742
show subpopulations
Gnomad AFR exome
AF:
0.0146
Gnomad AMR exome
AF:
0.000665
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.000816
GnomAD4 exome
AF:
0.000411
AC:
601
AN:
1461816
Hom.:
2
Cov.:
34
AF XY:
0.000356
AC XY:
259
AN XY:
727206
show subpopulations
Gnomad4 AFR exome
AF:
0.0140
Gnomad4 AMR exome
AF:
0.000783
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.00124
GnomAD4 genome
AF:
0.00381
AC:
581
AN:
152324
Hom.:
3
Cov.:
33
AF XY:
0.00371
AC XY:
276
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.0134
Gnomad4 AMR
AF:
0.00124
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00189
Alfa
AF:
0.00166
Hom.:
1
Bravo
AF:
0.00419
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenNov 01, 2022MED25: BP4, BP7, BS1, BS2 -
Charcot-Marie-Tooth disease Benign:1
Likely 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 testingLabcorp Genetics (formerly Invitae), LabcorpJan 19, 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 LaboratoriesNov 29, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.40
CADD
Benign
15
DANN
Benign
0.96

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs61742955; hg19: chr19-50321691; API