Variants
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rs141922502

  • Benign

Your Genotype

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Description

The TUBA4A p.Val288Val variant was not identified in the literature nor was it identified in ClinVar. The variant was identified in dbSNP (ID: rs141922502) and was identified in control databases in 1286 of 282890 chromosomes (7 homozygous) at a frequency of 0.004546 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: Ashkenazi Jewish in 75 of 10370 chromosomes (freq: 0.007232), European (non-Finnish) in 902 of 129194 chromosomes (freq: 0.006982), Other in 36 of 7228 chromosomes (freq: 0.004981), European (Finnish) in 83 of 25124 chromosomes (freq: 0.003304), Latino in 108 of 35440 chromosomes (freq: 0.003047), East Asian in 33 of 19954 chromosomes (freq: 0.001654), African in 25 of 24964 chromosomes (freq: 0.001001) and South Asian in 24 of 30616 chromosomes (freq: 0.000784). The p.Val288Val variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. The variant occurs outside of the splicing consensus sequence and four of four in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% difference in splicing. However, this has not been confirmed by RNA analysis and is not predictive enough to assume pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign.

Reference Allele

T


Alternative Allele

C

G

Chromosome

2


Location

219250790


Variant Type

SNP

Genes

ClinVar

Name

NM_006000.3(TUBA4A):c.909A>G (p.Val303=)


Allele

C


Clinical Significance

Benign

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