19-16576725-G-A

Position:

chr19-16576725-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004831.5(MED26):c.1105C>T(p.Arg369Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00022 in 1,611,686 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

MED26
NM_004831.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.57

Variant links:

Genes affected

MED26 (HGNC:2376): (mediator complex subunit 26) 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]

MED26 links:

LOC105372295 (HGNC:):

LOC105372295 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.13169667).

BS2

High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MED26	NM_004831.5 linkuse as main transcript	c.1105C>T	p.Arg369Trp	missense_variant	3/3	ENST00000263390.8
LOC105372295	XR_936359.3 linkuse as main transcript	n.475-1441G>A		intron_variant, non_coding_transcript_variant
LOC105372295	XR_936360.3 linkuse as main transcript	n.260-1441G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MED26	ENST00000263390.8 linkuse as main transcript	c.1105C>T	p.Arg369Trp	missense_variant	3/3	1	NM_004831.5	P1	O95402-1
MED26	ENST00000611692.4 linkuse as main transcript	c.*470C>T		3_prime_UTR_variant	4/4	1			O95402-2
MED26	ENST00000597244.1 linkuse as main transcript	n.2053C>T		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000175

AC:

AN:

245740

Hom.:

AF XY:

0.000172

AC XY:

AN XY:

133624

show subpopulations

Gnomad AFR exome

AF:

0.000126

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.000100

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000289

Gnomad OTH exome

AF:

0.000332

GnomAD4 exome

AF:

0.000234

AC:

341

AN:

1459332

Hom.:

Cov.:

AF XY:

0.000226

AC XY:

164

AN XY:

726072

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000282

Gnomad4 OTH exome

AF:

0.0000829

GnomAD4 genome

AF:

0.0000919

AC:

AN:

152354

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74504

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000162

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.000121

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000356

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

Jan 04, 2022

The c.1105C>T (p.R369W) alteration is located in exon 3 (coding exon 3) of the MED26 gene. This alteration results from a C to T substitution at nucleotide position 1105, causing the arginine (R) at amino acid position 369 to be replaced by a tryptophan (W). 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

0.11

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.088

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.40

LIST_S2

Benign

0.85

M_CAP

Benign

0.012

MetaRNN

Benign

0.13

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.55

MutationTaster

Benign

1.0

N;N

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-2.0

REVEL

Benign

0.088

Sift

Uncertain

0.021

Sift4G

Benign

0.074

Polyphen

0.99

Vest4

0.092

MVP

0.14

MPC

0.32

ClinPred

0.087

GERP RS

1.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.084

gMVP

0.16

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