Variant 5-69175448-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_031966.4(CCNB1):c.994T>A(p.Leu332Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,614,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

CCNB1
NM_031966.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.153

Variant links:

Genes affected

CCNB1 (HGNC:1579): (cyclin B1) The protein encoded by this gene is a regulatory protein involved in mitosis. The gene product complexes with p34(cdc2) to form the maturation-promoting factor (MPF). The encoded protein is necessary for proper control of the G2/M transition phase of the cell cycle. [provided by RefSeq, Aug 2017]

CCNB1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12540668).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCNB1	NM_031966.4 linkuse as main transcript	c.994T>A	p.Leu332Met	missense_variant	7/9	ENST00000256442.10	NP_114172.1	P14635-1
CCNB1	NM_001354844.2 linkuse as main transcript	c.994T>A	p.Leu332Met	missense_variant	7/8		NP_001341773.1
CCNB1	NM_001354845.2 linkuse as main transcript	c.835T>A	p.Leu279Met	missense_variant	6/8		NP_001341774.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CCNB1	ENST00000256442.10 linkuse as main transcript	c.994T>A	p.Leu332Met	missense_variant	7/9	1	NM_031966.4	ENSP00000256442.5	P14635-1
CCNB1	ENST00000506572.5 linkuse as main transcript	c.994T>A	p.Leu332Met	missense_variant	7/8	1		ENSP00000423387.1	E9PC90
CCNB1	ENST00000505500.5 linkuse as main transcript	c.994T>A	p.Leu332Met	missense_variant	7/8	1		ENSP00000424588.1	P14635-2
CCNB1	ENST00000507798.1 linkuse as main transcript	c.442T>A	p.Leu148Met	missense_variant	3/5	3		ENSP00000426230.1	H0YA62

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

251446

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135894

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1461750

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727196

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000174

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152330

Hom.:

Cov.:

AF XY:

0.0000805

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.00124

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.0000494

AC:

Asia WGS

AF:

0.00202

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 21, 2023

The c.994T>A (p.L332M) alteration is located in exon 7 (coding exon 7) of the CCNB1 gene. This alteration results from a T to A substitution at nucleotide position 994, causing the leucine (L) at amino acid position 332 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.13

T;T;.;T

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.49

FATHMM_MKL

Uncertain

0.78

LIST_S2

Benign

0.81

T;T;T;T

M_CAP

Benign

0.0084

MetaRNN

Benign

0.13

T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.13

N;.;N;.

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-0.84

N;N;N;N

REVEL

Benign

0.14

Sift

Benign

0.069

T;T;T;T

Sift4G

Uncertain

0.060

T;T;T;T

Polyphen

0.49

P;P;.;.

Vest4

0.13

MutPred

0.62

Loss of phosphorylation at Y334 (P = 0.0887);Loss of phosphorylation at Y334 (P = 0.0887);Loss of phosphorylation at Y334 (P = 0.0887);.;

MVP

0.74

MPC

0.11

ClinPred

0.29

GERP RS

-5.9

Varity_R

0.14

gMVP

0.39

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over