10-100526465-G-T
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate
The NM_005004.4(NDUFB8):c.402C>A(p.Phe134Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,612,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Consequence
NM_005004.4 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
NDUFB8 | NM_005004.4 | c.402C>A | p.Phe134Leu | missense_variant | Exon 4 of 5 | ENST00000299166.9 | NP_004995.1 | |
NDUFB8 | NM_001284367.2 | c.402C>A | p.Phe134Leu | missense_variant | Exon 4 of 5 | NP_001271296.1 | ||
NDUFB8 | NM_001284368.1 | c.309C>A | p.Phe103Leu | missense_variant | Exon 4 of 5 | NP_001271297.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
NDUFB8 | ENST00000299166.9 | c.402C>A | p.Phe134Leu | missense_variant | Exon 4 of 5 | 1 | NM_005004.4 | ENSP00000299166.4 | ||
ENSG00000255339 | ENST00000557395.5 | n.402C>A | non_coding_transcript_exon_variant | Exon 4 of 10 | 2 | ENSP00000456832.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152196Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000401 AC: 1AN: 249474Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 134936
GnomAD4 exome AF: 0.00000685 AC: 10AN: 1460222Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5AN XY: 726448
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152196Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74356
ClinVar
Submissions by phenotype
not provided Uncertain:1
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. This sequence change replaces phenylalanine with leucine at codon 134 of the NDUFB8 protein (p.Phe134Leu). The phenylalanine residue is moderately conserved and there is a small physicochemical difference between phenylalanine and leucine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with NDUFB8-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The leucine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at