chr1-16015645-G-A

Variant summary

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

The NM_014424.5(HSPB7):​c.448C>T​(p.Arg150Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,613,828 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

HSPB7
NM_014424.5 missense

Scores

4
13
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.67
Variant links:
Genes affected
HSPB7 (HGNC:5249): (heat shock protein family B (small) member 7) This gene encodes a small heat shock family B member that can heterodimerize with similar heat shock proteins. Defects in this gene are associated with advanced heart failure. In addition, the encoded protein may be a tumor suppressor in the p53 pathway, with defects in this gene being associated with renal cell carcinoma. [provided by RefSeq, Mar 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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
HSPB7NM_014424.5 linkuse as main transcriptc.448C>T p.Arg150Trp missense_variant 3/3 ENST00000311890.14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HSPB7ENST00000311890.14 linkuse as main transcriptc.448C>T p.Arg150Trp missense_variant 3/31 NM_014424.5 P3Q9UBY9-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152176
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
250928
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135692
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000233
AC:
34
AN:
1461652
Hom.:
0
Cov.:
30
AF XY:
0.0000234
AC XY:
17
AN XY:
727138
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000252
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152176
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsApr 07, 2023The c.448C>T (p.R150W) alteration is located in exon 3 (coding exon 3) of the HSPB7 gene. This alteration results from a C to T substitution at nucleotide position 448, causing the arginine (R) at amino acid position 150 to be replaced by a tryptophan (W). 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
0.36
BayesDel_addAF
Uncertain
0.025
T
BayesDel_noAF
Uncertain
0.020
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.73
.;D;.;D;.;.
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D;D
M_CAP
Pathogenic
0.35
D
MetaRNN
Uncertain
0.72
D;D;D;D;D;D
MetaSVM
Uncertain
0.76
D
MutationAssessor
Benign
1.8
.;L;.;.;.;.
MutationTaster
Benign
0.97
D;D;D;D;D;D
PrimateAI
Uncertain
0.69
T
PROVEAN
Uncertain
-3.8
D;D;D;D;D;D
REVEL
Pathogenic
0.69
Sift
Uncertain
0.011
D;D;D;D;D;D
Sift4G
Uncertain
0.0030
D;D;D;D;D;D
Polyphen
1.0
.;D;D;.;.;.
Vest4
0.55
MutPred
0.46
.;.;Loss of disorder (P = 3e-04);.;.;.;
MVP
0.98
MPC
1.1
ClinPred
0.92
D
GERP RS
5.0
Varity_R
0.30
gMVP
0.71

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: rs764260228; hg19: chr1-16342140; COSMIC: COSV100317809; COSMIC: COSV100317809; API