Genetic Variant MED25:p.Pro270Pro (chr19-49830209-G-A) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_StrongBP6_ModerateBP7

The NM_030973.4(MED25):c.810G>A(p.Pro270Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000224 in 1,604,984 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

MED25
NM_030973.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.223

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

congenital cataract-microcephaly-nevus flammeus simplex-severe intellectual disability syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, G2P, Labcorp Genetics (formerly Invitae)
autosomal recessive non-syndromic intellectual disability
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Charcot-Marie-Tooth disease type 2B2
Inheritance: AR Classification: SUPPORTIVE, NO_KNOWN Submitted by: Orphanet, ClinGen

MED25 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.51).

BP6

Variant 19-49830209-G-A is Benign according to our data. Variant chr19-49830209-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 543266.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=0.223 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030973.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MED25	NM_030973.4	MANE Select	c.810G>A	p.Pro270Pro	synonymous	Exon 7 of 18	NP_112235.2
	MED25	NM_001378355.1		c.810G>A	p.Pro270Pro	synonymous	Exon 7 of 18	NP_001365284.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MED25	ENST00000312865.10	TSL:1 MANE Select	c.810G>A	p.Pro270Pro	synonymous	Exon 7 of 18	ENSP00000326767.5
MED25	ENST00000538643.5	TSL:1	c.181-302G>A		intron	N/A	ENSP00000437496.1
MED25	ENST00000595185.5	TSL:1	c.688+261G>A		intron	N/A	ENSP00000470027.1

Frequencies

GnomAD3 genomes

AF:

0.0000396

AC:

AN:

151568

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000629

AC:

AN:

238378

AF XY:

0.0000153

show subpopulations

Gnomad AFR exome

AF:

0.000138

Gnomad AMR exome

AF:

0.000206

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000279

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000943

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000206

AC:

AN:

1453416

Hom.:

Cov.:

AF XY:

0.0000125

AC XY:

AN XY:

722206

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33334

American (AMR)

AF:

0.000203

AC:

AN:

44376

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26008

East Asian (EAS)

AF:

0.000177

AC:

AN:

39474

South Asian (SAS)

AF:

0.00

AC:

AN:

85968

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51358

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5700

European-Non Finnish (NFE)

AF:

0.00000813

AC:

AN:

1107198

Other (OTH)

AF:

0.0000167

AC:

AN:

60000

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.457

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000396

AC:

AN:

151568

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74010

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41242

American (AMR)

AF:

0.00

AC:

AN:

15202

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5156

South Asian (SAS)

AF:

0.00

AC:

AN:

4792

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10540

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67878

Other (OTH)

AF:

0.00

AC:

AN:

2072

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.442

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Charcot-Marie-Tooth disease type 2

Benign:1

Dec 16, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.51

CADD

Benign

(source)

DANN

Benign

0.52

PhyloP100

0.22

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over