19-49832310-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7

The NM_030973.4(MED25):​c.1377C>T​(p.Thr459Thr) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000169 in 1,602,590 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

MED25
NM_030973.4 splice_region, synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.760
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 -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant 19-49832310-C-T is Benign according to our data. Variant chr19-49832310-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 329883.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-49832310-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=0.76 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MED25NM_030973.4 linkc.1377C>T p.Thr459Thr splice_region_variant, synonymous_variant 13/18 ENST00000312865.10 NP_112235.2 Q71SY5-1
MED25NM_001378355.1 linkc.1377C>T p.Thr459Thr splice_region_variant, synonymous_variant 13/18 NP_001365284.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MED25ENST00000312865.10 linkc.1377C>T p.Thr459Thr splice_region_variant, synonymous_variant 13/181 NM_030973.4 ENSP00000326767.5 Q71SY5-1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000265
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000884
AC:
21
AN:
237478
Hom.:
0
AF XY:
0.0000857
AC XY:
11
AN XY:
128324
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000197
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000174
AC:
253
AN:
1450388
Hom.:
0
Cov.:
31
AF XY:
0.000186
AC XY:
134
AN XY:
721008
show subpopulations
Gnomad4 AFR exome
AF:
0.0000301
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000569
Gnomad4 NFE exome
AF:
0.000221
Gnomad4 OTH exome
AF:
0.0000833
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000265
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000307
Hom.:
0
Bravo
AF:
0.000132

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

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
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
13
DANN
Benign
0.84
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.6

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs374928221; hg19: chr19-50335567; API