16-58001544-G-C
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_024598.4(USB1):c.61G>C(p.Gly21Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,609,524 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar.
Frequency
Consequence
NM_024598.4 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 | UniProt |
---|---|---|---|---|---|---|---|
USB1 | NM_024598.4 | c.61G>C | p.Gly21Arg | missense_variant | 1/7 | ENST00000219281.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
USB1 | ENST00000219281.8 | c.61G>C | p.Gly21Arg | missense_variant | 1/7 | 1 | NM_024598.4 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000423 AC: 1AN: 236602Hom.: 0 AF XY: 0.00000773 AC XY: 1AN XY: 129290
GnomAD4 exome AF: 0.0000117 AC: 17AN: 1457312Hom.: 0 Cov.: 32 AF XY: 0.0000110 AC XY: 8AN XY: 724576
GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74356
ClinVar
Submissions by phenotype
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Dec 21, 2023 | The c.61G>C (p.G21R) alteration is located in exon 1 (coding exon 1) of the USB1 gene. This alteration results from a G to C substitution at nucleotide position 61, causing the glycine (G) at amino acid position 21 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jul 27, 2022 | This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 21 of the USB1 protein (p.Gly21Arg). This variant is present in population databases (no rsID available, gnomAD 0.001%). This variant has not been reported in the literature in individuals affected with USB1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The arginine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at