chr7-117606852-T-C
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Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_000492.4(CFTR):c.2988+99T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000501 in 799,000 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 1 hom. )
Consequence
CFTR
NM_000492.4 intron
NM_000492.4 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.948
Genes affected
CFTR (HGNC:1884): (CF transmembrane conductance regulator) This gene encodes a member of the ATP-binding cassette (ABC) transporter superfamily. The encoded protein functions as a chloride channel, making it unique among members of this protein family, and controls ion and water secretion and absorption in epithelial tissues. Channel activation is mediated by cycles of regulatory domain phosphorylation, ATP-binding by the nucleotide-binding domains, and ATP hydrolysis. Mutations in this gene cause cystic fibrosis, the most common lethal genetic disorder in populations of Northern European descent. The most frequently occurring mutation in cystic fibrosis, DeltaF508, results in impaired folding and trafficking of the encoded protein. Multiple pseudogenes have been identified in the human genome. [provided by RefSeq, Aug 2017]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CFTR | NM_000492.4 | c.2988+99T>C | intron_variant | ENST00000003084.11 | NP_000483.3 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
CFTR | ENST00000003084.11 | c.2988+99T>C | intron_variant | 1 | NM_000492.4 | ENSP00000003084 | P2 | |||
ENST00000456270.1 | n.178-1863A>G | intron_variant, non_coding_transcript_variant | 3 |
Frequencies
GnomAD3 genomes AF: 0.000138 AC: 21AN: 151950Hom.: 0 Cov.: 32
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GnomAD4 exome AF: 0.0000294 AC: 19AN: 646932Hom.: 1 AF XY: 0.0000228 AC XY: 8AN XY: 351366
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GnomAD4 genome AF: 0.000138 AC: 21AN: 152068Hom.: 0 Cov.: 32 AF XY: 0.0000942 AC XY: 7AN XY: 74340
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Quest Diagnostics Nichols Institute San Juan Capistrano | Feb 26, 2018 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at