rs55761650
Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_000433.4(NCF2):c.1360C>T(p.Pro454Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00613 in 1,614,138 control chromosomes in the GnomAD database, including 37 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_000433.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -20 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
NCF2 | NM_000433.4 | c.1360C>T | p.Pro454Ser | missense_variant | Exon 14 of 15 | ENST00000367535.8 | NP_000424.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00471 AC: 716AN: 152138Hom.: 7 Cov.: 32
GnomAD3 exomes AF: 0.00445 AC: 1120AN: 251468Hom.: 2 AF XY: 0.00465 AC XY: 632AN XY: 135900
GnomAD4 exome AF: 0.00628 AC: 9185AN: 1461882Hom.: 30 Cov.: 31 AF XY: 0.00615 AC XY: 4473AN XY: 727248
GnomAD4 genome AF: 0.00470 AC: 716AN: 152256Hom.: 7 Cov.: 32 AF XY: 0.00407 AC XY: 303AN XY: 74448
ClinVar
Submissions by phenotype
Granulomatous disease, chronic, autosomal recessive, cytochrome b-positive, type 2 Benign:3
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This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
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not specified Benign:2
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Variant summary: NCF2 c.1360C>T (p.Pro454Ser) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.0045 in 251468 control chromosomes (gnomAD), predominantly at a frequency of 0.0066 within the Non-Finnish European subpopulation in the gnomAD database, including 2 homozygotes. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 11-fold of the estimated maximal expected allele frequency for a pathogenic variant in NCF2 causing Chronic Granulomatous Disease (0.00061), strongly suggesting that the variant is a benign polymorphism found primarily in populations of Non-Finnish European origin. To our knowledge, no penetrant association of c.1360C>T in individuals affected with Chronic Granulomatous Disease and no experimental evidence demonstrating an impact on protein function has been reported. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and all laboratories classified the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. -
not provided Benign:2
This variant is associated with the following publications: (PMID: 29454792) -
NCF2: BP4, BS2 -
NCF2-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