rs149003485
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP6
The NM_002156.5(HSPD1):āc.794A>Gā(p.Asn265Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000923 in 1,613,894 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_002156.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
HSPD1 | NM_002156.5 | c.794A>G | p.Asn265Ser | missense_variant | Exon 7 of 12 | ENST00000388968.8 | NP_002147.2 | |
HSPD1 | NM_199440.2 | c.794A>G | p.Asn265Ser | missense_variant | Exon 7 of 12 | NP_955472.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000105 AC: 16AN: 152158Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000135 AC: 34AN: 251410Hom.: 0 AF XY: 0.000125 AC XY: 17AN XY: 135884
GnomAD4 exome AF: 0.0000910 AC: 133AN: 1461618Hom.: 0 Cov.: 31 AF XY: 0.0000894 AC XY: 65AN XY: 727120
GnomAD4 genome AF: 0.000105 AC: 16AN: 152276Hom.: 0 Cov.: 32 AF XY: 0.000121 AC XY: 9AN XY: 74456
ClinVar
Submissions by phenotype
Spastic paraplegia Uncertain:1
This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 265 of the HSPD1 protein (p.Asn265Ser). This variant is present in population databases (rs149003485, gnomAD 0.08%). This variant has not been reported in the literature in individuals affected with HSPD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 188178). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt HSPD1 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Hereditary spastic paraplegia 13 Benign:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at