rs1218056057

Variant names:

• chr15-40161239-G-A
• rs1218056057
• NM_001211.6:c.19G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001211.6(BUB1B):​c.19G>A​(p.Glu7Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E7D) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: BUB1B NM_001211.6 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 0.157
• Publications: 1 publications found

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: ClinGen, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)
• rhabdomyosarcoma

  Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
• mosaic variegated aneuploidy syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

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 (MetaRNN=0.08481312).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001211.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BUB1B	NM_001211.6	MANE Select	c.19G>A	p.Glu7Lys	missense	Exon 1 of 23	NP_001202.5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BUB1B	ENST00000287598.11	TSL:1 MANE Select	c.19G>A	p.Glu7Lys	missense	Exon 1 of 23	ENSP00000287598.7	O60566-1
	BUB1B	ENST00000412359.7	TSL:2	c.19G>A	p.Glu7Lys	missense	Exon 1 of 23	ENSP00000398470.3	O60566-3
	BUB1B	ENST00000918306.1		c.19G>A	p.Glu7Lys	missense	Exon 1 of 24	ENSP00000588365.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000404 AC: 1 AN: 247274 AF XY: 0.00000746

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000291

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461072 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 726746

African (AFR) AF: 0.00 AC: 0 AN: 33468

American (AMR) AF: 0.0000224 AC: 1 AN: 44626

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86024

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53374

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111638

Other (OTH) AF: 0.00 AC: 0 AN: 60360

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)
-	1	-	Mosaic variegated aneuploidy syndrome 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.29	T
BayesDel_noAF	Benign	-0.57
CADD	Benign	19
DANN	Uncertain	1.0
DEOGEN2	Benign	0.072	T
Eigen	Benign	-0.59
Eigen_PC	Benign	-0.56
FATHMM_MKL	Benign	0.14	N
LIST_S2	Benign	0.78	T
M_CAP	Benign	0.0083	T
MetaRNN	Benign	0.085	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.6	L
PhyloP100		0.16
PrimateAI	Benign	0.37	T
PROVEAN	Benign	-0.56	N
REVEL	Benign	0.022
Sift	Benign	0.034	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.0	B
Vest4		0.10
MutPred		0.29		Gain of MoRF binding (P = 7e-04)
MVP		0.57
MPC		0.22
ClinPred		0.16	T
GERP RS		2.2
PromoterAI		-0.025	Neutral
Varity_R		0.12
gMVP		0.47
Mutation Taster		=93/7	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
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

Other links and lift over

dbSNP: rs1218056057; hg19: chr15-40453440;