ClinVar Miner

Submissions for variant NM_000061.3(BTK):c.1720T>C (p.Phe574Leu)

dbSNP: rs1926379592
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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 RCV001046707 SCV001210621 uncertain significance X-linked agammaglobulinemia with growth hormone deficiency 2019-05-02 criteria provided, single submitter clinical testing In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C15"). This variant has been observed in an individual affected with clinical features of X-linked agammaglobulinemia (Invitae). In addition, a different sequence change (c.1722C>G) giving rise to this same missense variant (p.Phe574Leu) has been observed in a cohort of individuals with X-linked agammaglobulinemia (PMID: 16297664). This variant is not present in population databases (ExAC no frequency). This sequence change replaces phenylalanine with leucine at codon 574 of the BTK protein (p.Phe574Leu). The phenylalanine residue is highly conserved and there is a small physicochemical difference between phenylalanine and leucine.

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