NM_006231.4:c.1470C>T
Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_006231.4(POLE):c.1470C>T(p.Asp490Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00125 in 1,595,862 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_006231.4 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -21 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00614 AC: 934AN: 152208Hom.: 9 Cov.: 33
GnomAD3 exomes AF: 0.00176 AC: 443AN: 251416Hom.: 2 AF XY: 0.00135 AC XY: 183AN XY: 135864
GnomAD4 exome AF: 0.000740 AC: 1068AN: 1443536Hom.: 7 Cov.: 30 AF XY: 0.000678 AC XY: 488AN XY: 719294
GnomAD4 genome AF: 0.00613 AC: 933AN: 152326Hom.: 9 Cov.: 33 AF XY: 0.00615 AC XY: 458AN XY: 74480
ClinVar
Submissions by phenotype
not specified Benign:8
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Colorectal cancer, susceptibility to, 12 Benign:3
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
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not provided Benign:3
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This variant is associated with the following publications: (PMID: 25224212) -
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Carcinoma of colon Benign:1
The POLE p.Asp490= variant was identified in the literature as a polymorphism in 8 of 544 endometrial tumours (Billingsley 2015). The variant was also identified in dbSNP (ID: rs5744777) as “With Likely benign allele” and in ClinVar (classified benign by Invitae, Ambry Genetics, Counsyl, Prevention Genetics and Quest Diagnostics Nichols Institute San Juan Capistrano; and likely benign by GeneDx). The variant was identified in control databases in 596 (5 homozygous) of 277152 chromosomes at a frequency of 0.002 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). Tche variant was observed in the following populations: African in 511 of 24034 chromosomes (freq: 0.02), Other in 2 of 6466 chromosomes (freq: 0.0003), Latino in 37 of 34420 chromosomes (freq: 0.001), European Non-Finnish in 43 of 126646 chromosomes (freq: 0.0003), and South Asian in 3 of 30782 chromosomes (freq: 0.0001) while not observed in the Ashkenazi Jewish, East Asian and Finnish populations. The p.Asp490= 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 4 nucleotides from the end of exon 14 and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information this variant meets our laboratory's criteria to be classified as benign. -
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at