rs751798708
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1PM2PM5PP3_StrongPP5_Very_Strong
The NM_000053.4(ATP7B):āc.2335T>Gā(p.Trp779Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,112 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (ā ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. W779C) has been classified as Likely pathogenic.
Frequency
Consequence
NM_000053.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 18 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ATP7B | NM_000053.4 | c.2335T>G | p.Trp779Gly | missense_variant | 8/21 | ENST00000242839.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ATP7B | ENST00000242839.10 | c.2335T>G | p.Trp779Gly | missense_variant | 8/21 | 1 | NM_000053.4 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152222Hom.: 0 Cov.: 32
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461890Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727244
GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152222Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74362
ClinVar
Submissions by phenotype
Wilson disease Pathogenic:4
Pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Dec 19, 2023 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Counsyl | Mar 20, 2018 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Oct 02, 2023 | This missense variant replaces tryptophan with glycine at codon 779 of the ATP7B protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). Although functional studies have not been reported for this variant, it alters a conserved tryptophan residue in the transmembrane M2 domain of the ATP7B protein (a.a. 764 - 784), a highly conserved region that is considered to be important for ATP7B protein function (PMID: 35245129; ClinVar). This variant has been observed in individuals affected with autosomal recessive Wilson disease (PMID: 22763723, 23159873, 23518715, 24003324, 24734161, 25365615), including in at least two individuals in the compound heterozygous state with a second pathogenic ATP7B variant (PMID: 22763723, 23159873) and in multiple individuals in the homozygous state with confirmation or suspicion of parental consanguinity (PMID: 23518715, 24003324, 24734161, 25365615). This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). Based on the available evidence, this variant is classified as Likely Pathogenic. - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jan 09, 2023 | For these reasons, this variant has been classified as Pathogenic. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt ATP7B protein function. ClinVar contains an entry for this variant (Variation ID: 557358). This missense change has been observed in individual(s) with Wilson disease (PMID: 22763723, 23159873, 24794161). This variant is present in population databases (rs751798708, gnomAD 0.0009%). This sequence change replaces tryptophan, which is neutral and slightly polar, with glycine, which is neutral and non-polar, at codon 779 of the ATP7B protein (p.Trp779Gly). - |
not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Jul 01, 2019 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at