rs386134215
Variant summary
Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM2PM4_SupportingPP5_Very_Strong
The NM_003060.4(SLC22A5):c.1181_1183delTGC(p.Leu394del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000031 in 1,614,218 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_003060.4 disruptive_inframe_deletion
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 11 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000184 AC: 28AN: 152218Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251484Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135916
GnomAD4 exome AF: 0.0000150 AC: 22AN: 1461882Hom.: 0 AF XY: 0.00000963 AC XY: 7AN XY: 727246
GnomAD4 genome AF: 0.000184 AC: 28AN: 152336Hom.: 0 Cov.: 33 AF XY: 0.000174 AC XY: 13AN XY: 74504
ClinVar
Submissions by phenotype
Renal carnitine transport defect Pathogenic:6
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This variant, c.1181_1183del, results in the deletion of 1 amino acid(s) of the SLC22A5 protein (p.Leu394del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (rs762932965, gnomAD 0.009%). This variant has been observed in individual(s) with primary carnitine deficiency (PMID: 26828774, 28841266, 29895548; internal data). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 25410). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. For these reasons, this variant has been classified as Pathogenic. -
Variant summary: SLC22A5 c.1181_1183delTGC (p.Leu394del) results in an in-frame deletion that is predicted to remove one amino acid from the encoded protein. The variant allele was found at a frequency of 1.6e-05 in 251484 control chromosomes. c.1181_1183delTGC has been reported in the literature in individuals affected with Systemic Primary Carnitine Deficiency (Frigeni_2017, Echaniz-Laguna_2018). These data indicate that the variant may be associated with disease. At least one publication reports experimental evidence evaluating an impact on protein function. The most pronounced variant effect results in <10% of normal activity (Frigeni_2017). Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as pathogenic/likely pathogenic. Based on the evidence outlined above, the variant was classified as likely pathogenic. -
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not provided Pathogenic:1
Observed in the homozygous state in patients with primary carnitine deficiency referred for genetic testing at GeneDx and in the literature (PMID: 29895548); Published functional studies in CHO cells demonstrate a damaging effect on protein function (PMID: 28841266); In-frame deletion of 1 amino acid in a non-repeat region; Not observed at a significant frequency in large population cohorts (gnomAD); In silico analysis supports that this variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 28841266, 26828774, 32778825, 29895548) -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at