Genetic Variant CBY2:p.Asp111Asn (chr13-45713356-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_152719.3(CBY2):c.331G>A(p.Asp111Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000527 in 1,614,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

CBY2
NM_152719.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.84

Variant links:

Genes affected

CBY2 (HGNC:30720): (chibby family member 2) Enables identical protein binding activity. Predicted to be located in cytoplasmic vesicle. [provided by Alliance of Genome Resources, Apr 2022]

CBY2 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=0.10329929).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CBY2	NM_152719.3 link	c.331G>A	p.Asp111Asn	missense_variant	Exon 3 of 3	ENST00000310521.6	NP_689932.1	Q8NA61-1A0A140VJV5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CBY2	ENST00000310521.6 link	c.331G>A	p.Asp111Asn	missense_variant	Exon 3 of 3	1	NM_152719.3	ENSP00000309189.1	Q8NA61-1
CBY2	ENST00000378966.3 link	c.223G>A	p.Asp75Asn	missense_variant	Exon 2 of 2	1		ENSP00000368249.3	Q8NA61-2
CBY2	ENST00000610924.1 link	c.223G>A	p.Asp75Asn	missense_variant	Exon 3 of 3	5		ENSP00000480148.1	Q8NA61-2
CBY2	ENST00000533564.1 link	c.250G>A	p.Asp84Asn	missense_variant	Exon 2 of 2	2		ENSP00000435230.1	E9PLB4

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152188

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:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000757

AC:

AN:

251144

Hom.:

AF XY:

0.000125

AC XY:

AN XY:

135858

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000621

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000561

AC:

AN:

1461850

Hom.:

Cov.:

AF XY:

0.0000784

AC XY:

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000939

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.0000906

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.331G>A (p.D111N) alteration is located in exon 3 (coding exon 3) of the SPERT gene. This alteration results from a G to A substitution at nucleotide position 331, causing the aspartic acid (D) at amino acid position 111 to be replaced by an asparagine (N). 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

0.29

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.45

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

T;.;.;.

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.87

D;D;D;.

M_CAP

Benign

0.044

MetaRNN

Benign

0.10

T;T;T;T

MetaSVM

Benign

-0.59

MutationAssessor

Benign

1.9

M;.;.;.

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-2.6

D;D;.;D

REVEL

Benign

0.10

Sift

Uncertain

0.0050

D;D;.;D

Sift4G

Uncertain

0.012

D;D;D;D

Polyphen

1.0

D;.;D;D

Vest4

0.42

MutPred

0.11

Loss of loop (P = 0.2237);.;.;.;

MVP

0.67

MPC

1.1

ClinPred

0.46

GERP RS

5.0

Varity_R

0.19

gMVP

0.26

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