rs753061670

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The ENST00000447574.1(HSPB1):​n.395C>G variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000146 in 1,515,912 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

HSPB1
ENST00000447574.1 non_coding_transcript_exon

Scores

2
Splicing: ADA: 0.00002412
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:3

Conservation

PhyloP100: -0.936

Publications

1 publications found
Variant links:
Genes affected
HSPB1 (HGNC:5246): (heat shock protein family B (small) member 1) This gene encodes a member of the small heat shock protein (HSP20) family of proteins. In response to environmental stress, the encoded protein translocates from the cytoplasm to the nucleus and functions as a molecular chaperone that promotes the correct folding of other proteins. This protein plays an important role in the differentiation of a wide variety of cell types. Expression of this gene is correlated with poor clinical outcome in multiple human cancers, and the encoded protein may promote cancer cell proliferation and metastasis, while protecting cancer cells from apoptosis. Mutations in this gene have been identified in human patients with Charcot-Marie-Tooth disease and distal hereditary motor neuropathy. [provided by RefSeq, Aug 2017]
HSPB1 Gene-Disease associations (from GenCC):
  • Charcot-Marie-Tooth disease axonal type 2F
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen, Illumina, Labcorp Genetics (formerly Invitae)
  • neuronopathy, distal hereditary motor, type 2B
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • distal hereditary motor neuropathy type 2
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BP6
Variant 7-76303082-C-G is Benign according to our data. Variant chr7-76303082-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 447529.
BS2
High AC in GnomAd4 at 17 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000447574.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HSPB1
NM_001540.5
MANE Select
c.364+6C>G
splice_region intron
N/ANP_001531.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HSPB1
ENST00000447574.1
TSL:1
n.395C>G
non_coding_transcript_exon
Exon 1 of 2
HSPB1
ENST00000248553.7
TSL:1 MANE Select
c.364+6C>G
splice_region intron
N/AENSP00000248553.6
HSPB1
ENST00000675538.1
c.370C>Gp.Pro124Ala
missense
Exon 1 of 3ENSP00000502495.1

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
151916
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
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:
0.000191
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000750
AC:
10
AN:
133364
AF XY:
0.0000828
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000261
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000536
Gnomad OTH exome
AF:
0.000256
GnomAD4 exome
AF:
0.000150
AC:
204
AN:
1363996
Hom.:
0
Cov.:
31
AF XY:
0.000142
AC XY:
95
AN XY:
668912
show subpopulations
African (AFR)
AF:
0.0000318
AC:
1
AN:
31448
American (AMR)
AF:
0.000261
AC:
9
AN:
34448
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23970
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36044
South Asian (SAS)
AF:
0.00
AC:
0
AN:
77320
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
33776
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5582
European-Non Finnish (NFE)
AF:
0.000177
AC:
188
AN:
1064520
Other (OTH)
AF:
0.000105
AC:
6
AN:
56888
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
12
24
36
48
60
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000112
AC:
17
AN:
151916
Hom.:
0
Cov.:
33
AF XY:
0.0000809
AC XY:
6
AN XY:
74196
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41354
American (AMR)
AF:
0.000197
AC:
3
AN:
15242
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
67934
Other (OTH)
AF:
0.000478
AC:
1
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.528
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.0000727
Hom.:
0
Bravo
AF:
0.000178

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Charcot-Marie-Tooth disease axonal type 2F (2)
-
1
1
not specified (2)
-
-
1
Charcot-Marie-Tooth disease (1)
-
-
1
Inborn genetic diseases (1)
-
1
-
Neuronopathy, distal hereditary motor, type 2B (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.91
CADD
Benign
6.1
DANN
Benign
0.51
PhyloP100
-0.94
PromoterAI
0.013
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000024
dbscSNV1_RF
Benign
0.030
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: rs753061670; hg19: chr7-75932399; API