chr6-31641108-C-T

Position:

• chr6-31641108-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001387994.1(BAG6):​c.2783G>A​(p.Arg928Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,660 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: BAG6 NM_001387994.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.08

Genes affected

BAG6 (HGNC:13919): (BAG cochaperone 6) This gene was first characterized as part of a cluster of genes located within the human major histocompatibility complex class III region. This gene encodes a nuclear protein that is cleaved by caspase 3 and is implicated in the control of apoptosis. In addition, the protein forms a complex with E1A binding protein p300 and is required for the acetylation of p53 in response to DNA damage. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BAG6	NM_001387994.1	c.2783G>A	p.Arg928Gln	missense_variant	20/26	ENST00000676615.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BAG6	ENST00000676615.2	c.2783G>A	p.Arg928Gln	missense_variant	20/26		NM_001387994.1	A2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460660 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 726622

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 13, 2022

The c.2693G>A (p.R898Q) alteration is located in exon 19 (coding exon 18) of the BAG6 gene. This alteration results from a G to A substitution at nucleotide position 2693, causing the arginine (R) at amino acid position 898 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	Uncertain	0.54
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Pathogenic	32
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.19	.;.;T;.;.
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Uncertain	0.96	D
M_CAP	Benign	0.036	D
MetaRNN	Uncertain	0.46	T;T;T;T;T
MetaSVM	Benign	-0.80	T
MutationAssessor	Uncertain	2.0	.;.;M;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D
PrimateAI	Uncertain	0.62	T
PROVEAN	Benign	-1.9	N;N;N;N;N
REVEL	Benign	0.27
Sift	Benign	0.18	T;T;T;T;D
Sift4G	Pathogenic	0.0	D;D;D;D;D
Polyphen		1.0	D;D;D;.;.
Vest4		0.52
MutPred		0.44		.;.;Loss of methylation at R898 (P = 0.0257);.;.;
MVP		0.73
MPC		2.2
ClinPred		0.96	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.44
gMVP		0.98

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

Other links and lift over

dbSNP: rs904232684; hg19: chr6-31608885;