ClinVar Miner

Submissions for variant NM_002351.5(SH2D1A):c.251T>C (p.Ile84Thr)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Victorian Clinical Genetics Services, Murdoch Childrens Research Institute RCV002471422 SCV002767469 pathogenic X-linked lymphoproliferative disease due to SH2D1A deficiency 2021-05-06 criteria provided, single submitter clinical testing Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with X-linked lymphoproliferative disease (MIM#308240). (I) 0109 - This gene is associated with X-linked recessive disease. (I) 0200 - Variant is predicted to result in a missense amino acid change from isoleucine to threonine. (I) 0251 - This variant is heterozygous. (I) 0301 - Variant is absent from gnomAD (both v2 and v3). (SP) 0501 - Missense variant consistently predicted to be damaging by multiple in silico tools or highly conserved with a major amino acid change. (SP) 0603 - Missense variant in a region that is highly intolerant to missense variation (SH2 domain; high constraint region in DECIPHER). (SP) 0704 - Another missense variant comparable to the one identified in this case has limited previous evidence for pathogenicity. A different variant in the same codon resulting in a change to a serine has been reported as pathogenic in an individual with primary immunodeficiency (PMID: 32888943). (SP) 0901 - This variant has strong evidence for segregation with disease. This variant has been shown to segregate with X-linked lymphoproliferative disease in multiple members of this individual’s family (PMID: 16720617; personal communication). (SP) 1001 - This variant has strong functional evidence supporting abnormal protein function. Functional studies on patient cells and transfected cell lines show that this variant significantly reduces protein expression (PMID: 16720617). (SP) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign

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