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GeneBe

22-39087092-A-G

Variant summary

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

The NM_021822.4(APOBEC3G):c.1106A>G(p.Gln369Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000235 in 1,613,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

APOBEC3G
NM_021822.4 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0870
Variant links:
Genes affected
APOBEC3G (HGNC:17357): (apolipoprotein B mRNA editing enzyme catalytic subunit 3G) This gene is a member of the cytidine deaminase gene family. It is one of seven related genes or pseudogenes found in a cluster, thought to result from gene duplication, on chromosome 22. Members of the cluster encode proteins that are structurally and functionally related to the C to U RNA-editing cytidine deaminase APOBEC1. The protein encoded by this gene catalyzes site-specific deamination of both RNA and single-stranded DNA. The encoded protein has been found to be a specific inhibitor of human immunodeficiency virus-1 (HIV-1) infectivity. [provided by RefSeq, Mar 2017]

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=0.05926022).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
APOBEC3GNM_021822.4 linkuse as main transcriptc.1106A>G p.Gln369Arg missense_variant 7/8 ENST00000407997.4
APOBEC3GNM_001349436.1 linkuse as main transcriptc.1073A>G p.Gln358Arg missense_variant 7/8
APOBEC3GNM_001349437.2 linkuse as main transcriptc.905A>G p.Gln302Arg missense_variant 6/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
APOBEC3GENST00000407997.4 linkuse as main transcriptc.1106A>G p.Gln369Arg missense_variant 7/81 NM_021822.4 P1Q9HC16-1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000438
AC:
11
AN:
251400
Hom.:
0
AF XY:
0.0000515
AC XY:
7
AN XY:
135880
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000173
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1461672
Hom.:
0
Cov.:
32
AF XY:
0.0000275
AC XY:
20
AN XY:
727110
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.0000928
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.000121
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000567
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000330
AC:
4

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 submitterclinical testingAmbry GeneticsMar 30, 2022The c.1106A>G (p.Q369R) alteration is located in exon 7 (coding exon 7) of the APOBEC3G gene. This alteration results from a A to G substitution at nucleotide position 1106, causing the glutamine (Q) at amino acid position 369 to be replaced by an arginine (R). 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
0.076
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.59
Cadd
Benign
2.9
Dann
Benign
0.50
DEOGEN2
Benign
0.0072
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.0094
N
LIST_S2
Benign
0.70
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.059
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.2
L
MutationTaster
Benign
1.0
N;N
PROVEAN
Benign
-1.6
N
REVEL
Benign
0.061
Sift
Benign
0.52
T
Sift4G
Benign
0.48
T
Polyphen
0.41
B
Vest4
0.095
MVP
0.53
MPC
0.45
ClinPred
0.053
T
GERP RS
0.46
Varity_R
0.26
gMVP
0.060

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.

Other links and lift over

dbSNP: rs144179214; hg19: chr22-39483097; API