15-40210148-T-C
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_001211.6(BUB1B):c.2323T>C(p.Cys775Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Consequence
BUB1B
NM_001211.6 missense
NM_001211.6 missense
Scores
4
15
Clinical Significance
Conservation
PhyloP100: 1.71
Genes affected
BUB1B (HGNC:1149): (BUB1 mitotic checkpoint serine/threonine kinase B) This gene encodes a kinase involved in spindle checkpoint function. The protein has been localized to the kinetochore and plays a role in the inhibition of the anaphase-promoting complex/cyclosome (APC/C), delaying the onset of anaphase and ensuring proper chromosome segregation. Impaired spindle checkpoint function has been found in many forms of cancer. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
BUB1B | NM_001211.6 | c.2323T>C | p.Cys775Arg | missense_variant | 18/23 | ENST00000287598.11 | NP_001202.5 | |
LOC107984763 | XR_001751506.2 | n.217+29337A>G | intron_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
BUB1B | ENST00000287598.11 | c.2323T>C | p.Cys775Arg | missense_variant | 18/23 | 1 | NM_001211.6 | ENSP00000287598.7 | ||
BUB1B | ENST00000412359.7 | c.2365T>C | p.Cys789Arg | missense_variant | 18/23 | 2 | ENSP00000398470.3 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
Cov.:
32
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome Cov.: 32
GnomAD4 genome
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Mosaic variegated aneuploidy syndrome 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Mar 12, 2018 | This sequence change replaces cysteine with arginine at codon 775 of the BUB1B protein (p.Cys775Arg). The cysteine residue is weakly conserved and there is a large physicochemical difference between cysteine and arginine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with BUB1B-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
DEOGEN2
Benign
T;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T;T
M_CAP
Benign
T
MetaRNN
Uncertain
T;T
MetaSVM
Benign
T
MutationAssessor
Benign
L;.
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N
REVEL
Benign
Sift
Benign
T;T
Sift4G
Benign
T;T
Polyphen
P;.
Vest4
MutPred
Loss of ubiquitination at K779 (P = 0.0771);.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at