Variant chr6-41061346-C-G 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_006789.4(APOBEC2):c.150C>G(p.Asn50Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000471 in 1,529,404 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00048 ( 0 hom. )

Consequence

APOBEC2
NM_006789.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.222

Variant links:

Genes affected

APOBEC2 (HGNC:605): (apolipoprotein B mRNA editing enzyme catalytic subunit 2) Enables cytidine deaminase activity and identical protein binding activity. Involved in DNA demethylation. Acts upstream of or within cytidine to uridine editing. Predicted to be active in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

APOBEC2 links:

OARD1 (HGNC:21257): (O-acyl-ADP-ribose deacylase 1) The protein encoded by this gene is a deacylase that can convert O-acetyl-ADP-ribose to ADP-ribose and acetate, O-propionyl-ADP-ribose to ADP-ribose and propionate, and O-butyryl-ADP-ribose to ADP-ribose and butyrate. The ADP-ribose product is able to inhibit these reactions through a competitive feedback loop. [provided by RefSeq, Jul 2016]

OARD1 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=0.042601615).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
APOBEC2	NM_006789.4 linkuse as main transcript	c.150C>G	p.Asn50Lys	missense_variant	2/3	ENST00000244669.3	NP_006780.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
APOBEC2	ENST00000244669.3 linkuse as main transcript	c.150C>G	p.Asn50Lys	missense_variant	2/3	1	NM_006789.4	ENSP00000244669	P1
OARD1	ENST00000482853.5 linkuse as main transcript	c.145+8730G>C		intron_variant, NMD_transcript_variant		2		ENSP00000420472

Frequencies

GnomAD3 genomes

AF:

0.000375

AC:

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000809

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000296

AC:

AN:

185586

Hom.:

AF XY:

0.000275

AC XY:

AN XY:

98032

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.000133

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:

0.000537

Gnomad OTH exome

AF:

0.000700

GnomAD4 exome

AF:

0.000481

AC:

663

AN:

1377154

Hom.:

Cov.:

AF XY:

0.000429

AC XY:

290

AN XY:

675902

show subpopulations

Gnomad4 AFR exome

AF:

0.000131

Gnomad4 AMR exome

AF:

0.000160

Gnomad4 ASJ exome

AF:

0.0000488

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000598

Gnomad4 OTH exome

AF:

0.000212

GnomAD4 genome

AF:

0.000374

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74442

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000809

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000558

Hom.:

Bravo

AF:

0.000408

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000240

AC:

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

Dec 17, 2023

The c.150C>G (p.N50K) alteration is located in exon 2 (coding exon 2) of the APOBEC2 gene. This alteration results from a C to G substitution at nucleotide position 150, causing the asparagine (N) at amino acid position 50 to be replaced by a lysine (K). 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

Pathogenic

0.64

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.055

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.26

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.81

M_CAP

Benign

0.0088

MetaRNN

Benign

0.043

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.41

MutationTaster

Benign

0.88

PrimateAI

Benign

0.47

PROVEAN

Benign

-0.79

REVEL

Benign

0.058

Sift

Benign

0.49

Sift4G

Benign

0.34

Polyphen

0.13

Vest4

0.29

MutPred

0.53

Gain of methylation at N50 (P = 0.003);

MVP

0.50

MPC

0.067

ClinPred

0.018

GERP RS

3.6

Varity_R

0.38

gMVP

0.35

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