chr22-39101399-G-A

Position:

• chr22-39101399-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_181773.5(APOBEC3H):​c.313G>A​(p.Gly105Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G105R) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 22)
• Consequence: APOBEC3H NM_181773.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.65

Genes affected

APOBEC3H (HGNC:24100): (apolipoprotein B mRNA editing enzyme catalytic subunit 3H) This gene encodes a member of the apolipoprotein B mRNA-editing enzyme catalytic polypeptide 3 family of proteins. The encoded protein is a cytidine deaminase that has antiretroviral activity by generating lethal hypermutations in viral genomes. Polymorphisms and alternative splicing in this gene influence its antiretroviral activity and are associated with increased resistence to human immunodeficiency virus type 1 infection in certain populations. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Oct 2009]

ACMG classification

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=0.07257208).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
APOBEC3H	NM_181773.5	c.313G>A	p.Gly105Ser	missense_variant	3/5	ENST00000442487.8	NP_861438.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
APOBEC3H	ENST00000442487.8	c.313G>A	p.Gly105Ser	missense_variant	3/5	3	NM_181773.5	ENSP00000411754.3

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251172 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135800

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: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 64

GnomAD4 genome Cov.: 22

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	0.017
DANN	Benign	0.90
DEOGEN2	Benign	0.0025	.;T;.;T;.;.
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.0051	N
LIST_S2	Benign	0.074	T;T;T;.;T;.
M_CAP	Benign	0.0098	T
MetaRNN	Benign	0.073	T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-1.2	.;N;N;N;N;.
PrimateAI	Benign	0.22	T
PROVEAN	Benign	1.7	N;.;N;N;N;.
REVEL	Benign	0.052
Sift	Benign	0.11	T;.;T;T;T;.
Sift4G	Benign	0.077	T;T;T;T;T;T
Vest4		0.055
MutPred		0.39		Gain of glycosylation at G105 (P = 0.0721);Gain of glycosylation at G105 (P = 0.0721);Gain of glycosylation at G105 (P = 0.0721);Gain of glycosylation at G105 (P = 0.0721);Gain of glycosylation at G105 (P = 0.0721);Gain of glycosylation at G105 (P = 0.0721);
MVP		0.47
MPC		0.18
ClinPred		0.099	T
GERP RS		-4.6
Varity_R		0.032
gMVP		0.11

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs139297; hg19: chr22-39497404;