ClinVar Miner

Submissions for variant NM_001999.4(FBN2):c.7331C>T (p.Thr2444Ile)

gnomAD frequency: 0.00001  dbSNP: rs201883128
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000195847 SCV000250241 uncertain significance not provided 2015-04-29 criteria provided, single submitter clinical testing p.Thr2444Ile (T2444I) ACA>ATA: c.7331 C>T in exon 57 of the FBN2 gene (NM_001999.3) The T2444I variant has not been published as a mutation, nor has it been reported as a benign polymorphism to our knowledge. The T2444I variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. The T2444I variant was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, however, it has been observed in the 1000 Genomes project in 1/128 alleles from individuals of Mexican ancestry. This substitution occurs at a position that is not conserved and in silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. Furthermore, missense mutations in nearby residues have not been reported, indicating this region of the protein may be tolerant of change. Therefore, based on the currently available information, it is unclear whether this variant is a pathogenic mutation or a rare benign variant. This variant was found in TAADV2-PANCARD
Invitae RCV001853147 SCV002224517 likely benign Congenital contractural arachnodactyly 2023-10-14 criteria provided, single submitter clinical testing

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