rs142674953
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The ENST00000388798.7(SPAG1):c.2515A>T(p.Met839Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000407 in 1,614,066 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
ENST00000388798.7 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SPAG1 | NM_003114.5 | c.2515A>T | p.Met839Leu | missense_variant | 18/19 | ENST00000388798.7 | NP_003105.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
SPAG1 | ENST00000388798.7 | c.2515A>T | p.Met839Leu | missense_variant | 18/19 | 1 | NM_003114.5 | ENSP00000373450 | P1 | |
SPAG1 | ENST00000251809.4 | c.2515A>T | p.Met839Leu | missense_variant | 18/19 | 5 | ENSP00000251809 | P1 | ||
SPAG1 | ENST00000519409.1 | n.79A>T | non_coding_transcript_exon_variant | 1/2 | 3 |
Frequencies
GnomAD3 genomes AF: 0.000164 AC: 25AN: 152212Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000151 AC: 38AN: 251302Hom.: 0 AF XY: 0.000140 AC XY: 19AN XY: 135816
GnomAD4 exome AF: 0.000432 AC: 632AN: 1461854Hom.: 0 Cov.: 36 AF XY: 0.000433 AC XY: 315AN XY: 727234
GnomAD4 genome AF: 0.000164 AC: 25AN: 152212Hom.: 0 Cov.: 32 AF XY: 0.000134 AC XY: 10AN XY: 74360
ClinVar
Submissions by phenotype
Primary ciliary dyskinesia 28 Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jul 19, 2022 | This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 839 of the SPAG1 protein (p.Met839Leu). This variant is present in population databases (rs142674953, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with SPAG1-related conditions. ClinVar contains an entry for this variant (Variation ID: 411000). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Oct 19, 2021 | - - |
Primary ciliary dyskinesia Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 18, 2024 | The p.M839L variant (also known as c.2515A>T), located in coding exon 17 of the SPAG1 gene, results from an A to T substitution at nucleotide position 2515. The methionine at codon 839 is replaced by leucine, an amino acid with highly similar properties. This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at