ClinVar Miner

Submissions for variant NM_000156.6(GAMT):c.570+5G>T

dbSNP: rs199678332
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001065911 SCV001230901 uncertain significance Cerebral creatine deficiency syndrome 2021-06-24 criteria provided, single submitter clinical testing This sequence change falls in intron 5 of the GAMT gene. It does not directly change the encoded amino acid sequence of the GAMT protein. It affects a nucleotide within the consensus splice site of the intron. This variant is present in population databases (rs199678332, ExAC 0.1%). This variant has not been reported in the literature in individuals with GAMT-related conditions. ClinVar contains an entry for this variant (Variation ID: 859734). Nucleotide substitutions within the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. 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.
Natera, Inc. RCV001275201 SCV001460078 uncertain significance Deficiency of guanidinoacetate methyltransferase 2020-01-24 no assertion criteria provided clinical testing

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