rs77586767
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Variant summary
Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBS1BS2
The NM_001540.5(HSPB1):c.9G>A(p.Glu3=) variant causes a synonymous change. The variant allele was found at a frequency of 0.00461 in 1,602,454 control chromosomes in the GnomAD database, including 26 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.0031 ( 1 hom., cov: 33)
Exomes 𝑓: 0.0048 ( 25 hom. )
Consequence
HSPB1
NM_001540.5 synonymous
NM_001540.5 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 3.60
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]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -18 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.36).
BP6
?
Variant 7-76302721-G-A is Benign according to our data. Variant chr7-76302721-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 193215.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-76302721-G-A is described in Lovd as [Benign]. Variant chr7-76302721-G-A is described in Lovd as [Likely_benign].
BS1
?
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00313 (477/152354) while in subpopulation NFE AF= 0.00545 (371/68032). AF 95% confidence interval is 0.005. There are 1 homozygotes in gnomad4. There are 213 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
?
High AC in GnomAd4 at 477 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
HSPB1 | NM_001540.5 | c.9G>A | p.Glu3= | synonymous_variant | 1/3 | ENST00000248553.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
HSPB1 | ENST00000248553.7 | c.9G>A | p.Glu3= | synonymous_variant | 1/3 | 1 | NM_001540.5 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00313 AC: 477AN: 152236Hom.: 1 Cov.: 33
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GnomAD3 exomes AF: 0.00366 AC: 863AN: 235782Hom.: 3 AF XY: 0.00358 AC XY: 467AN XY: 130326
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GnomAD4 exome AF: 0.00476 AC: 6908AN: 1450100Hom.: 25 Cov.: 31 AF XY: 0.00476 AC XY: 3436AN XY: 721834
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:13
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Benign:6
Likely benign, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Nov 28, 2023 | - - |
Benign, criteria provided, single submitter | clinical testing | GeneDx | Mar 03, 2015 | - - |
Benign, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Jun 01, 2024 | HSPB1: BP4, BS1, BS2 - |
Likely benign, no assertion criteria provided | clinical testing | Genome Diagnostics Laboratory, University Medical Center Utrecht | - | - - |
Benign, criteria provided, single submitter | clinical testing | Athena Diagnostics | Dec 12, 2017 | - - |
not specified Benign:2
Likely benign, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Feb 27, 2015 | - - |
Benign, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Charcot-Marie-Tooth disease Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Molecular Genetics Laboratory, London Health Sciences Centre | - | - - |
HSPB1-related disorder Benign:1
Benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Feb 12, 2020 | This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). - |
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Jul 11, 2019 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Charcot-Marie-Tooth disease axonal type 2F Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 29, 2024 | - - |
Neuronopathy, distal hereditary motor, type 2B Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Apr 27, 2017 | This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. - |
Computational scores
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Name
Calibrated prediction
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at