22-39045101-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_145298.6(APOBEC3F):​c.332C>A​(p.Pro111His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000867 in 1,613,844 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 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

APOBEC3F
NM_145298.6 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.40
Variant links:
Genes affected
APOBEC3F (HGNC:17356): (apolipoprotein B mRNA editing enzyme catalytic subunit 3F) 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. It is thought that the proteins may be RNA editing enzymes and have roles in growth or cell cycle control. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.37130606).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
APOBEC3FNM_145298.6 linkc.332C>A p.Pro111His missense_variant Exon 3 of 7 ENST00000308521.10 NP_660341.2 Q8IUX4-1
APOBEC3FXM_047441184.1 linkc.332C>A p.Pro111His missense_variant Exon 3 of 6 XP_047297140.1
APOBEC3FXM_047441185.1 linkc.332C>A p.Pro111His missense_variant Exon 3 of 5 XP_047297141.1
APOBEC3FXM_017028642.3 linkc.332C>A p.Pro111His missense_variant Exon 3 of 5 XP_016884131.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
APOBEC3FENST00000308521.10 linkc.332C>A p.Pro111His missense_variant Exon 3 of 7 1 NM_145298.6 ENSP00000309749.5 Q8IUX4-1
APOBEC3FENST00000491387.1 linkn.479C>A non_coding_transcript_exon_variant Exon 3 of 3 4
APOBEC3FENST00000476513.1 linkn.-83C>A upstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151982
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000657
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:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251414
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135898
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000145
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:
0.00000889
AC:
13
AN:
1461862
Hom.:
0
Cov.:
111
AF XY:
0.00000825
AC XY:
6
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000268
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151982
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74242
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000657
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:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jan 24, 2025
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.332C>A (p.P111H) alteration is located in exon 3 (coding exon 3) of the APOBEC3F gene. This alteration results from a C to A substitution at nucleotide position 332, causing the proline (P) at amino acid position 111 to be replaced by a histidine (H). 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
0.22
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
2.2
DANN
Benign
0.96
DEOGEN2
Benign
0.0059
T
Eigen
Benign
-0.77
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.0071
N
LIST_S2
Benign
0.69
T
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.37
T
MetaSVM
Benign
-0.81
T
MutationAssessor
Uncertain
2.3
M
PrimateAI
Benign
0.29
T
PROVEAN
Uncertain
-3.3
D
REVEL
Benign
0.21
Sift
Uncertain
0.0080
D
Sift4G
Benign
0.20
T
Polyphen
0.98
D
Vest4
0.26
MutPred
0.71
Loss of sheet (P = 0.0817);
MVP
0.67
MPC
1.1
ClinPred
0.40
T
GERP RS
-4.5
Varity_R
0.42
gMVP
0.11

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: rs751600905; hg19: chr22-39441106; API