ClinVar Miner

Submissions for variant NM_000528.4(MAN2B1):c.630+5G>A

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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 RCV003602005 SCV004561398 uncertain significance Deficiency of alpha-mannosidase 2023-02-10 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. Variants that disrupt 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 is not likely to affect RNA splicing. This variant has not been reported in the literature in individuals affected with MAN2B1-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change falls in intron 4 of the MAN2B1 gene. It does not directly change the encoded amino acid sequence of the MAN2B1 protein. It affects a nucleotide within the consensus splice site.

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