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GeneBe

3-128462903-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_153330.6(DNAJB8):c.343T>C(p.Trp115Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,760 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 (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DNAJB8
NM_153330.6 missense

Scores

6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.77
Variant links:
Genes affected
DNAJB8 (HGNC:23699): (DnaJ heat shock protein family (Hsp40) member B8) The protein encoded by this gene belongs to the DNAJ/HSP40 family of proteins that regulate chaperone activity. This family member suppresses aggregation and toxicity of polyglutamine proteins, and the C-terminal tail is essential for this activity. It has been implicated as a cancer-testis antigen and as a cancer stem-like cell antigen involved in renal cell carcinoma. [provided by RefSeq, Jun 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.21263766).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAJB8NM_153330.6 linkuse as main transcriptc.343T>C p.Trp115Arg missense_variant 3/3 ENST00000319153.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAJB8ENST00000319153.4 linkuse as main transcriptc.343T>C p.Trp115Arg missense_variant 3/31 NM_153330.6 P1
DNAJB8ENST00000469083.1 linkuse as main transcriptc.343T>C p.Trp115Arg missense_variant 2/22 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
250970
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135700
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461760
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
727178
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

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 submitterclinical testingAmbry GeneticsJun 24, 2022The c.343T>C (p.W115R) alteration is located in exon 3 (coding exon 1) of the DNAJB8 gene. This alteration results from a T to C substitution at nucleotide position 343, causing the tryptophan (W) at amino acid position 115 to be replaced by an arginine (R). 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
0.55
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.29
Cadd
Benign
20
Dann
Benign
0.52
DEOGEN2
Benign
0.092
T;T
Eigen
Benign
-0.63
Eigen_PC
Benign
-0.55
FATHMM_MKL
Uncertain
0.88
D
M_CAP
Uncertain
0.099
D
MetaRNN
Benign
0.21
T;T
MetaSVM
Benign
-0.80
T
MutationAssessor
Uncertain
2.0
M;M
MutationTaster
Benign
0.69
N;N
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-2.6
D;D
REVEL
Benign
0.25
Sift
Benign
0.081
T;T
Sift4G
Benign
0.20
T;T
Polyphen
0.019
B;B
Vest4
0.29
MutPred
0.46
Gain of disorder (P = 0.0014);Gain of disorder (P = 0.0014);
MVP
0.78
MPC
0.23
ClinPred
0.12
T
GERP RS
3.4
Varity_R
0.16
gMVP
0.85

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.

Other links and lift over

dbSNP: rs774940330; hg19: chr3-128181746; COSMIC: COSV59879305; COSMIC: COSV59879305; API