rs761099182
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_001378454.1(ALMS1):c.11728C>G(p.Pro3910Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000434 in 1,614,004 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. P3910P) has been classified as Likely benign.
Frequency
Consequence
NM_001378454.1 missense
Scores
Clinical Significance
Conservation
Publications
- Alstrom syndromeInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, G2P, Orphanet, Genomics England PanelApp
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ACMG classification
Our verdict: Uncertain_significance. The variant received 2 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ALMS1 | ENST00000613296.6 | c.11728C>G | p.Pro3910Ala | missense_variant | Exon 18 of 23 | 1 | NM_001378454.1 | ENSP00000482968.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152146Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000799 AC: 2AN: 250206 AF XY: 0.00000737 show subpopulations
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461858Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 727224 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152146Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74328 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Alstrom syndrome Uncertain:3
This sequence change replaces proline, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 3911 of the ALMS1 protein (p.Pro3911Ala). This variant is present in population databases (no rsID available, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with ALMS1-related conditions. ClinVar contains an entry for this variant (Variation ID: 403931). 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.
Cardiovascular phenotype Uncertain:1
The p.P3911A variant (also known as c.11731C>G), located in coding exon 18 of the ALMS1 gene, results from a C to G substitution at nucleotide position 11731. The proline at codon 3911 is replaced by alanine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. 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