11-93784504-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_004268.5(MED17):c.-10C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000251 in 1,592,544 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00025 ( 1 hom. )

Consequence

MED17
NM_004268.5 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Conflicting classifications of pathogenicity no assertion criteria provided U:1B:1

Conservation

PhyloP100: 0.684

Variant links:

Genes affected

MED17 (HGNC:2375): (mediator complex subunit 17) The activation of gene transcription is a multistep process that is triggered by factors that recognize transcriptional enhancer sites in DNA. These factors work with co-activators to direct transcriptional initiation by the RNA polymerase II apparatus. The protein encoded by this gene is a subunit of the CRSP (cofactor required for SP1 activation) complex, which, along with TFIID, is required for efficient activation by SP1. This protein is also a component of other multisubunit complexes e.g. thyroid hormone receptor-(TR-) associated proteins which interact with TR and facilitate TR function on DNA templates in conjunction with initiation factors and cofactors. [provided by RefSeq, Jul 2008]

MED17 links:

ENSG00000284057 (HGNC:):

ENSG00000284057 links:

TAF1D (HGNC:28759): (TATA-box binding protein associated factor, RNA polymerase I subunit D) TAF1D is a member of the SL1 complex, which includes TBP (MIM 600075) and TAF1A (MIM 604903), TAF1B (MIM 604904), and TAF1C (MIM 604905), and plays a role in RNA polymerase I transcription (Wang et al., 2004 [PubMed 15520167]; Gorski et al., 2007 [PubMed 17318177]).[supplied by OMIM, Jun 2009]

TAF1D links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.58).

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000276 (42/152292) while in subpopulation NFE AF= 0.000515 (35/68022). AF 95% confidence interval is 0.00038. There are 0 homozygotes in gnomad4. There are 19 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MED17	NM_004268.5 link	c.-10C>T		5_prime_UTR_premature_start_codon_gain_variant	Exon 1 of 12	ENST00000251871.9	NP_004259.3	Q9NVC6-1
MED17	NM_004268.5 link	c.-10C>T		5_prime_UTR_variant	Exon 1 of 12	ENST00000251871.9	NP_004259.3	Q9NVC6-1

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
MED17	ENST00000251871 link	c.-10C>T	5_prime_UTR_premature_start_codon_gain_variant	Exon 1 of 12	1	NM_004268.5	ENSP00000251871.3	Q9NVC6-1
MED17	ENST00000251871 link	c.-10C>T	5_prime_UTR_variant	Exon 1 of 12	1	NM_004268.5	ENSP00000251871.3	Q9NVC6-1
ENSG00000284057	ENST00000638767.1 link	c.676-124C>T	intron_variant	Intron 7 of 18	5		ENSP00000492220.1	A0A1W2PRB8

Frequencies

GnomAD3 genomes

AF:

0.000276

AC:

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000565

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000514

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000365

AC:

AN:

241058

Hom.:

AF XY:

0.000304

AC XY:

AN XY:

131750

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000591

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000736

Gnomad NFE exome

AF:

0.000651

Gnomad OTH exome

AF:

0.000170

GnomAD4 exome

AF:

0.000248

AC:

357

AN:

1440252

Hom.:

Cov.:

AF XY:

0.000217

AC XY:

155

AN XY:

712864

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000455

Gnomad4 ASJ exome

AF:

0.0000388

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000611

Gnomad4 NFE exome

AF:

0.000276

Gnomad4 OTH exome

AF:

0.000337

GnomAD4 genome

AF:

0.000276

AC:

AN:

152292

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000565

Gnomad4 NFE

AF:

0.000515

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000690

Hom.:

Bravo

AF:

0.000200

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Infantile cerebral and cerebellar atrophy with postnatal progressive microcephaly

Uncertain:1

Apr 17, 2020

Natera, Inc.

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

MED17-related disorder

Benign:1

Apr 10, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Benign

0.92

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.2

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