rs28989182
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.
The NM_001211.6(BUB1B):c.2441G>A(p.Arg814His) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,612,728 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_001211.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
BUB1B | ENST00000287598.11 | c.2441G>A | p.Arg814His | missense_variant | Exon 19 of 23 | 1 | NM_001211.6 | ENSP00000287598.7 | ||
BUB1B | ENST00000412359.7 | c.2483G>A | p.Arg828His | missense_variant | Exon 19 of 23 | 2 | ENSP00000398470.3 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152106Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000796 AC: 2AN: 251300Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135832
GnomAD4 exome AF: 0.0000185 AC: 27AN: 1460622Hom.: 0 Cov.: 30 AF XY: 0.0000151 AC XY: 11AN XY: 726756
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152106Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74292
ClinVar
Submissions by phenotype
Mosaic variegated aneuploidy syndrome 1 Pathogenic:3
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 814 of the BUB1B protein (p.Arg814His). This variant is present in population databases (rs28989182, gnomAD 0.01%). This missense change has been observed in individual(s) with mosaic variegated aneuploidy (PMID: 15475955, 20516114, 30512160). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 6764). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Experimental studies have shown that this missense change affects BUB1B function (PMID: 20516114). For these reasons, this variant has been classified as Pathogenic. -
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Same nucleotide change resulting in same amino acid change has been previously reported as pathogenic supporitng evidence (ClinVar ID: VCV000006764.1, PMID: 20516114, PS1_P). It is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.00001061, PM2). The variant was observed in trans with a pathogenic variant (NM_001211.5: c.1045del) as compound heterozygous (3billion dataset, PM3). Patient's phenotype is considered compatible with Mosaic Variegated Aneuploidy Syndrome 1 (3billion dataset, PP4). Therefore, this variant is classified as likely pathogenic according to the recommendation of ACMG/AMP guideline. -
Premature chromatid separation trait Benign:1Other:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at