rs200479768

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBS1_SupportingBS2

The NM_004281.4(BAG3):​c.508C>T​(p.Arg170Trp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000415 in 1,612,560 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R170Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

BAG3
NM_004281.4 missense, splice_region

Scores

1
11
6
Splicing: ADA: 0.8880
1
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 2.10

Publications

4 publications found
Variant links:
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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2243709).
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000118 (18/152174) while in subpopulation AMR AF = 0.000524 (8/15274). AF 95% confidence interval is 0.00026. There are 0 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAd4 at 18 AD gene.

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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BAG3
NM_004281.4
MANE Select
c.508C>Tp.Arg170Trp
missense splice_region
Exon 3 of 4NP_004272.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BAG3
ENST00000369085.8
TSL:1 MANE Select
c.508C>Tp.Arg170Trp
missense splice_region
Exon 3 of 4ENSP00000358081.4O95817
BAG3
ENST00000889977.1
c.508C>Tp.Arg170Trp
missense splice_region
Exon 4 of 5ENSP00000560036.1
BAG3
ENST00000889978.1
c.508C>Tp.Arg170Trp
missense splice_region
Exon 3 of 4ENSP00000560037.1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152174
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
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
GnomAD2 exomes
AF:
0.0000324
AC:
8
AN:
246670
AF XY:
0.0000224
show subpopulations
Gnomad AFR exome
AF:
0.0000644
Gnomad AMR exome
AF:
0.0000869
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000478
Gnomad NFE exome
AF:
0.0000271
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000336
AC:
49
AN:
1460386
Hom.:
0
Cov.:
32
AF XY:
0.0000358
AC XY:
26
AN XY:
726580
show subpopulations
African (AFR)
AF:
0.000119
AC:
4
AN:
33480
American (AMR)
AF:
0.0000894
AC:
4
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.0000770
AC:
4
AN:
51946
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000306
AC:
34
AN:
1111994
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152174
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41444
American (AMR)
AF:
0.000524
AC:
8
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.447
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000121
Hom.:
0
Bravo
AF:
0.0000982
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Myofibrillar myopathy 6;C3151293:Dilated cardiomyopathy 1HH (2)
-
2
-
not provided (2)
-
1
-
BAG3-related disorder (1)
-
1
-
Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.014
T
BayesDel_noAF
Uncertain
-0.060
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.16
T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.87
D
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.22
T
MetaSVM
Uncertain
-0.060
T
MutationAssessor
Uncertain
2.4
M
PhyloP100
2.1
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.1
N
REVEL
Uncertain
0.36
Sift
Uncertain
0.017
D
Sift4G
Uncertain
0.018
D
Polyphen
1.0
D
Vest4
0.47
MutPred
0.10
Loss of glycosylation at P174 (P = 0.2051)
MVP
0.83
MPC
0.41
ClinPred
0.28
T
GERP RS
3.1
Varity_R
0.087
gMVP
0.26
Mutation Taster
=76/24
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.89
dbscSNV1_RF
Pathogenic
0.74
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

Other links and lift over

dbSNP: rs200479768; hg19: chr10-121431767; COSMIC: COSV64842263; API