Variant 5-179679110-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001164444.2(CBY3):c.202C>T(p.His68Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000241 in 1,535,732 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000010 ( 1 hom. )

Consequence

CBY3
NM_001164444.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.744

Variant links:

Genes affected

CBY3 (HGNC:33278): (chibby family member 3)

CBY3 links:

(HGNC:):

links:

CANX (HGNC:1473): (calnexin) This gene encodes a member of the calnexin family of molecular chaperones. The encoded protein is a calcium-binding, endoplasmic reticulum (ER)-associated protein that interacts transiently with newly synthesized N-linked glycoproteins, facilitating protein folding and assembly. It may also play a central role in the quality control of protein folding by retaining incorrectly folded protein subunits within the ER for degradation. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jun 2018]

CANX links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.056990653).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
CBY3	NM_001164444.2 linkuse as main transcript	c.202C>T	p.His68Tyr	missense_variant	2/2	ENST00000376974.5	NP_001157916.1
CBY3	XM_047417524.1 linkuse as main transcript	c.-90C>T		5_prime_UTR_variant	2/2		XP_047273480.1
CANX	XM_011534665.4 linkuse as main transcript	c.-4+333G>A		intron_variant			XP_011532967.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CBY3	ENST00000376974.5 linkuse as main transcript	c.202C>T	p.His68Tyr	missense_variant	2/2	2	NM_001164444.2	ENSP00000366173	P1
	ENST00000442010.2 linkuse as main transcript	n.79G>A		non_coding_transcript_exon_variant	1/2	2

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152264

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000723

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00118

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.0000375

AC:

AN:

133486

Hom.:

AF XY:

0.0000138

AC XY:

AN XY:

72406

show subpopulations

Gnomad AFR exome

AF:

0.000150

Gnomad AMR exome

AF:

0.000164

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.0000101

AC:

AN:

1383350

Hom.:

Cov.:

AF XY:

0.00000733

AC XY:

AN XY:

682576

show subpopulations

Gnomad4 AFR exome

AF:

0.0000317

Gnomad4 AMR exome

AF:

0.000280

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000518

GnomAD4 genome

AF:

0.000151

AC:

AN:

152382

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74516

show subpopulations

Gnomad4 AFR

AF:

0.0000721

Gnomad4 AMR

AF:

0.00118

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000945

Bravo

AF:

0.000355

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

Oct 27, 2023

The c.202C>T (p.H68Y) alteration is located in exon 2 (coding exon 2) of the CBY3 gene. This alteration results from a C to T substitution at nucleotide position 202, causing the histidine (H) at amino acid position 68 to be replaced by a tyrosine (Y). 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

0.11

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Benign

0.0025

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.091

M_CAP

Benign

0.013

MetaRNN

Benign

0.057

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.20

MutationTaster

Benign

1.0

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.80

REVEL

Benign

0.17

Sift

Benign

0.23

Sift4G

Benign

0.53

Vest4

0.13

MutPred

0.27

Gain of helix (P = 0.0325);

MVP

0.030

ClinPred

0.079

GERP RS

4.6

Varity_R

0.18

gMVP

0.21

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