Variant chr8-37844647-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018310.4(BRF2):c.1103G>A(p.Arg368Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000496 in 1,614,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

BRF2
NM_018310.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.81

Variant links:

Genes affected

BRF2 (HGNC:17298): (BRF2 RNA polymerase III transcription initiation factor subunit) This gene encodes one of the multiple subunits of the RNA polymerase III transcription factor complex required for transcription of genes with promoter elements upstream of the initiation site. The product of this gene, a TFIIB-like factor, is directly recruited to the TATA-box of polymerase III small nuclear RNA gene promoters through its interaction with the TATA-binding protein. [provided by RefSeq, Jul 2008]

BRF2 links:

ADGRA2 (HGNC:17849): (adhesion G protein-coupled receptor A2) Predicted to enable G protein-coupled receptor activity. Involved in positive regulation of canonical Wnt signaling pathway. Part of Wnt signalosome. [provided by Alliance of Genome Resources, Apr 2022]

ADGRA2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.047192633).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BRF2	NM_018310.4 link	c.1103G>A	p.Arg368Gln	missense_variant	4/4	ENST00000220659.11	NP_060780.2	Q9HAW0-1
ADGRA2	NM_032777.10 link	c.*2292C>T		3_prime_UTR_variant	19/19	ENST00000412232.3	NP_116166.9	Q96PE1-1Q6YN44

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
BRF2	ENST00000220659.11 link	c.1103G>A	p.Arg368Gln	missense_variant	4/4	1	NM_018310.4	ENSP00000220659.6	Q9HAW0-1
ADGRA2	ENST00000412232.3 link	c.*2292C>T		3_prime_UTR_variant	19/19	1	NM_032777.10	ENSP00000406367.2	Q96PE1-1
ADGRA2	ENST00000315215.11 link	c.*2292C>T		3_prime_UTR_variant	16/16	1		ENSP00000323508.7	Q96PE1-2

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000318

AC:

AN:

251416

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135904

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000486

AC:

AN:

1461858

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

727222

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.000115

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000567

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74422

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000763

Hom.:

Bravo

AF:

0.0000453

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000247

AC:

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

May 11, 2022

The c.1103G>A (p.R368Q) alteration is located in exon 4 (coding exon 4) of the BRF2 gene. This alteration results from a G to A substitution at nucleotide position 1103, causing the arginine (R) at amino acid position 368 to be replaced by a glutamine (Q). 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

0.079

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.077

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.11

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.76

M_CAP

Benign

0.0050

MetaRNN

Benign

0.047

MetaSVM

Benign

-0.97

MutationAssessor

Benign

1.8

PrimateAI

Benign

0.33

PROVEAN

Benign

-1.2

REVEL

Benign

0.14

Sift

Benign

0.15

Sift4G

Uncertain

0.015

Polyphen

0.37

Vest4

0.096

MVP

0.54

MPC

0.17

ClinPred

0.16

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.23

gMVP

0.49

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