chr8-11808562-G-C
Variant summary
Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2
The NM_001287750.2(FDFT1):āc.45G>Cā(p.Lys15Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00761 in 1,366,542 control chromosomes in the GnomAD database, including 53 homozygotes. In-silico tool predicts a benign outcome for this variant. 6/9 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_001287750.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -9 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00455 AC: 693AN: 152156Hom.: 3 Cov.: 33
GnomAD4 exome AF: 0.00799 AC: 9707AN: 1214276Hom.: 50 Cov.: 63 AF XY: 0.00778 AC XY: 4558AN XY: 586070
GnomAD4 genome AF: 0.00454 AC: 692AN: 152266Hom.: 3 Cov.: 33 AF XY: 0.00384 AC XY: 286AN XY: 74444
ClinVar
Submissions by phenotype
not provided Uncertain:2Benign:1
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FDFT1: BS2 -
The FDFT1 p.Lys15Asn variant was not identified in the literature nor was it identified in ClinVar. The variant was identified in dbSNP (ID: rs181750463) and in control databases in 116 of 31288 chromosomes at a frequency of 0.003707 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: European (non-Finnish) in 90 of 15378 chromosomes (freq: 0.005853), Other in 5 of 1080 chromosomes (freq: 0.00463), Latino in 2 of 848 chromosomes (freq: 0.002358), African in 16 of 8660 chromosomes (freq: 0.001848) and European (Finnish) in 3 of 3474 chromosomes (freq: 0.000864), but was not observed in the Ashkenazi Jewish, East Asian, or South Asian populations. The p.Lys15 residue is not conserved in mammals and four out of five computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; however, this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and 2 of 4 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
FDFT1-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at