Genetic Variant BUB1B:c.1628+5G>T (chr15-40202470-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001211.6(BUB1B):c.1628+5G>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,022 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

BUB1B
NM_001211.6 splice_region, intron

Scores

Splicing: ADA: 0.4706

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.24

Publications

0 publications found

Variant links:

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]

BUB1B Gene-Disease associations (from GenCC):

mosaic variegated aneuploidy syndrome 1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, ClinGen, G2P
rhabdomyosarcoma
Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
mosaic variegated aneuploidy syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

BUB1B links:

LOC107984763 (HGNC:):

LOC107984763 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.46).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BUB1B	NM_001211.6 link	c.1628+5G>T		splice_region_variant, intron_variant	Intron 13 of 22	ENST00000287598.11	NP_001202.5
LOC107984763	XR_001751506.2 link	n.218-22269C>A		intron_variant	Intron 1 of 2

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein
BUB1B	ENST00000287598.11 link	c.1628+5G>T	splice_region_variant, intron_variant	Intron 13 of 22	1	NM_001211.6	ENSP00000287598.7
BUB1B	ENST00000412359.7 link	c.1670+5G>T	splice_region_variant, intron_variant	Intron 13 of 22	2		ENSP00000398470.3
BUB1B	ENST00000558972.1 link	n.433+5G>T	splice_region_variant, intron_variant	Intron 3 of 4	3
BUB1B	ENST00000559733.5 link	n.*541+5G>T	splice_region_variant, intron_variant	Intron 6 of 6	3		ENSP00000453643.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459022

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725892

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33256

American (AMR)

AF:

0.00

AC:

AN:

44502

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26102

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39650

South Asian (SAS)

AF:

0.00

AC:

AN:

85788

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5728

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110322

Other (OTH)

AF:

0.00

AC:

AN:

60284

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Benign

0.52

PhyloP100

-1.2

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.47

dbscSNV1_RF

Benign

0.45

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over