ClinVar Miner

Submissions for variant NM_000061.3(BTK):c.1763G>T (p.Trp588Leu)

dbSNP: rs1603001805
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001984261 SCV002280421 likely pathogenic X-linked agammaglobulinemia with growth hormone deficiency 2020-12-24 criteria provided, single submitter clinical testing In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. This variant disrupts the p.Trp588 amino acid residue in BTK. Other variant(s) that disrupt this residue have been observed in individuals with BTK-related conditions (PMID: 14974089, 17045652, 26931785), which suggests that this may be a clinically significant amino acid residue. 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 BTK protein function. This variant has not been reported in the literature in individuals with BTK-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces tryptophan with leucine at codon 588 of the BTK protein (p.Trp588Leu). The tryptophan residue is highly conserved and there is a small physicochemical difference between tryptophan and leucine.

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