chr17-39408775-G-T

Position:

chr17-39408775-G-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_004774.4(MED1):c.3446C>A(p.Ser1149Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000684 in 1,461,782 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

MED1
NM_004774.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.61

Variant links:

Genes affected

MED1 (HGNC:9234): (mediator complex subunit 1) 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. It also regulates p53-dependent apoptosis and it is essential for adipogenesis. This protein is known to have the ability to self-oligomerize. [provided by RefSeq, Jul 2008]

MED1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.27739227).

BS2

High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MED1	NM_004774.4 linkuse as main transcript	c.3446C>A	p.Ser1149Tyr	missense_variant	17/17	ENST00000300651.11	NP_004765.2	Q15648-1
MED1	XM_047436314.1 linkuse as main transcript	c.2930C>A	p.Ser977Tyr	missense_variant	13/13		XP_047292270.1
MED1	XM_047436315.1 linkuse as main transcript	c.2789C>A	p.Ser930Tyr	missense_variant	9/9		XP_047292271.1
MED1	XM_006721957.3 linkuse as main transcript	c.1640+1806C>A		intron_variant			XP_006722020.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
MED1	ENST00000300651.11 linkuse as main transcript	c.3446C>A	p.Ser1149Tyr	missense_variant	17/17	1	NM_004774.4	ENSP00000300651.6	Q15648-1
MED1	ENST00000394287.7 linkuse as main transcript	c.1640+1806C>A		intron_variant		1		ENSP00000377828.3	Q15648-3
MED1	ENST00000577831.5 linkuse as main transcript	n.*3019C>A		non_coding_transcript_exon_variant	16/16	2		ENSP00000463307.1	J3QKZ7
MED1	ENST00000577831.5 linkuse as main transcript	n.*3019C>A		3_prime_UTR_variant	16/16	2		ENSP00000463307.1	J3QKZ7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251014

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135708

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:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461782

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727176

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00

Gnomad4 NFE exome

AF:

0.00000899

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000756

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 27, 2023

The c.3446C>A (p.S1149Y) alteration is located in exon 17 (coding exon 17) of the MED1 gene. This alteration results from a C to A substitution at nucleotide position 3446, causing the serine (S) at amino acid position 1149 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.32

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.40

CADD

Uncertain

DANN

Benign

0.92

DEOGEN2

Benign

0.25

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.79

M_CAP

Benign

0.020

MetaRNN

Benign

0.28

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.81

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-1.9

REVEL

Benign

0.21

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0040

Polyphen

0.99

Vest4

0.28

MutPred

0.39

Gain of catalytic residue at S1149 (P = 0.0044);

MVP

0.17

MPC

0.35

ClinPred

0.51

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.14

gMVP

0.26

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