10-119672392-C-G

Variant names:

• chr10-119672392-C-G
• rs138078305
• NM_004281.4:c.645C>G

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 4P and 1B. PM1 PM2 BP4

The NM_004281.4(BAG3):​c.645C>G​(p.Asn215Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,158 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 (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Synonymous variant affecting the same amino acid position (i.e. N215N) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: BAG3 NM_004281.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -2.61
• Publications: 1 publications found

Genes affected

BAG3 (HGNC:939): (BAG cochaperone 3) BAG proteins compete with Hip for binding to the Hsc70/Hsp70 ATPase domain and promote substrate release. All the BAG proteins have an approximately 45-amino acid BAG domain near the C terminus but differ markedly in their N-terminal regions. The protein encoded by this gene contains a WW domain in the N-terminal region and a BAG domain in the C-terminal region. The BAG domains of BAG1, BAG2, and BAG3 interact specifically with the Hsc70 ATPase domain in vitro and in mammalian cells. All 3 proteins bind with high affinity to the ATPase domain of Hsc70 and inhibit its chaperone activity in a Hip-repressible manner. [provided by RefSeq, Jul 2008]

BAG3 Gene-Disease associations (from GenCC):

• dilated cardiomyopathy

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• dilated cardiomyopathy 1HH

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• myofibrillar myopathy

  Inheritance: Unknown, AD Classification: DEFINITIVE Submitted by: ClinGen, G2P
• myofibrillar myopathy 6

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Charcot-Marie-tooth disease, axonal, type 2JJ

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• distal hereditary motor neuropathy

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ENSG00000295480 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 24 uncertain in NM_004281.4
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30564302).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004281.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BAG3	NM_004281.4	MANE Select	c.645C>G	p.Asn215Lys	missense	Exon 3 of 4	NP_004272.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BAG3	ENST00000369085.8	TSL:1 MANE Select	c.645C>G	p.Asn215Lys	missense	Exon 3 of 4	ENSP00000358081.4	O95817
	BAG3	ENST00000889977.1		c.645C>G	p.Asn215Lys	missense	Exon 4 of 5	ENSP00000560036.1
	BAG3	ENST00000889978.1		c.645C>G	p.Asn215Lys	missense	Exon 3 of 4	ENSP00000560037.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152158 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152158 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74324

African (AFR) AF: 0.0000241 AC: 1 AN: 41444

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5176

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68018

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Myofibrillar myopathy 6;C3151293:Dilated cardiomyopathy 1HH (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.28
BayesDel_addAF	Benign	-0.022	T
BayesDel_noAF	Benign	-0.27
CADD	Benign	0.27
DANN	Uncertain	0.99
DEOGEN2	Benign	0.20	T
Eigen	Benign	-0.57
Eigen_PC	Benign	-0.76
FATHMM_MKL	Benign	0.076	N
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.063	D
MetaRNN	Benign	0.31	T
MetaSVM	Benign	-0.53	T
MutationAssessor	Uncertain	2.5	M
PhyloP100		-2.6
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	-1.6	N
REVEL	Uncertain	0.38
Sift	Uncertain	0.0030	D
Sift4G	Benign	0.48	T
Polyphen		0.95	P
Vest4		0.32
MutPred		0.42		Gain of methylation at N215 (P = 0.0014)
MVP		0.84
MPC		0.39
ClinPred		0.88	D
GERP RS		-4.4
Varity_R		0.15
gMVP		0.31
Mutation Taster		=93/7	polymorphism

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

Other links and lift over

dbSNP: rs138078305; hg19: chr10-121431904;