19-49828497-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 2P and 15B. PM2BP4_ModerateBP6_Very_StrongBP7BS1

The NM_030973.4(MED25):c.354C>T(p.Leu118Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00134 in 1,614,128 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0014 ( 1 hom. )

Consequence

MED25
NM_030973.4 synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.111

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]

MED25 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.36).

BP6

Variant 19-49828497-C-T is Benign according to our data. Variant chr19-49828497-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 329879.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.111 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00108 (164/152326) while in subpopulation NFE AF= 0.00168 (114/68030). AF 95% confidence interval is 0.00143. There are 0 homozygotes in gnomad4. There are 83 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MED25	NM_030973.4 link	c.354C>T	p.Leu118Leu	synonymous_variant	Exon 4 of 18	ENST00000312865.10	NP_112235.2	Q71SY5-1
MED25	NM_001378355.1 link	c.354C>T	p.Leu118Leu	synonymous_variant	Exon 4 of 18		NP_001365284.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MED25	ENST00000312865.10 link	c.354C>T	p.Leu118Leu	synonymous_variant	Exon 4 of 18	1	NM_030973.4	ENSP00000326767.5	Q71SY5-1
MED25	ENST00000595185.5 link	c.354C>T	p.Leu118Leu	synonymous_variant	Exon 4 of 7	1		ENSP00000470027.1	M0QYR4
MED25	ENST00000538643.5 link	c.181-2014C>T		intron_variant	Intron 2 of 12	1		ENSP00000437496.1	Q71SY5-6
MED25	ENST00000593767.3 link	c.354C>T	p.Leu118Leu	synonymous_variant	Exon 4 of 18	3		ENSP00000470692.3	M0QZQ2

Frequencies

GnomAD3 genomes

AF:

0.00108

AC:

165

AN:

152208

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00157

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00151

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00169

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.00109

AC:

274

AN:

251424

Hom.:

AF XY:

0.00107

AC XY:

146

AN XY:

135916

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00136

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000261

Gnomad FIN exome

AF:

0.00148

Gnomad NFE exome

AF:

0.00156

Gnomad OTH exome

AF:

0.00130

GnomAD4 exome

AF:

0.00136

AC:

1994

AN:

1461802

Hom.:

Cov.:

AF XY:

0.00134

AC XY:

978

AN XY:

727200

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.00148

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000325

Gnomad4 FIN exome

AF:

0.00180

Gnomad4 NFE exome

AF:

0.00155

Gnomad4 OTH exome

AF:

0.00114

GnomAD4 genome

AF:

0.00108

AC:

164

AN:

152326

Hom.:

Cov.:

AF XY:

0.00111

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.00157

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00151

Gnomad4 NFE

AF:

0.00168

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.00154

Hom.:

Bravo

AF:

0.00122

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Dec 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

MED25: BP4, BP7 -

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Charcot-Marie-Tooth disease

Benign:1

Molecular Genetics Laboratory, London Health Sciences Centre

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:1

Apr 11, 2015

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This 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 type 2

Benign:1

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Congenital cataract-microcephaly-nevus flammeus simplex-severe intellectual disability syndrome

Benign:1

Jun 06, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.36

CADD

Benign

DANN

Benign

0.73

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over