2-68467786-G-A

Position:

• chr2-68467786-G-A

Variant summary

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

The NM_173545.3(APLF):​c.55G>A​(p.Ala19Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000647 in 1,082,024 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000065 (0 hom.)
• Consequence: APLF NM_173545.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.875

Genes affected

APLF (HGNC:28724): (aprataxin and PNKP like factor) Enables DNA-(apurinic or apyrimidinic site) endonuclease activity; nuclease activity; and nucleotide binding activity. Involved in double-strand break repair via nonhomologous end joining and single strand break repair. Acts upstream of or within positive regulation of DNA ligation. Located in nucleoplasm. Is active in site of double-strand break. [provided by Alliance of Genome Resources, Apr 2022]

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=0.1533159).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
APLF	NM_173545.3	c.55G>A	p.Ala19Thr	missense_variant	1/10	ENST00000303795.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
APLF	ENST00000303795.9	c.55G>A	p.Ala19Thr	missense_variant	1/10	1	NM_173545.3	P1
APLF	ENST00000445692.5	c.55G>A	p.Ala19Thr	missense_variant, NMD_transcript_variant	1/11	5
APLF	ENST00000529851.5	c.55G>A	p.Ala19Thr	missense_variant, NMD_transcript_variant	1/9	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000647 AC: 7 AN: 1082024 Hom.: 0 Cov.: 30 AF XY: 0.00000391 AC XY: 2 AN XY: 511108

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

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: 0.00000761

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	20
DANN	Uncertain	1.0
DEOGEN2	Benign	0.029	T
Eigen	Benign	-0.044
Eigen_PC	Benign	-0.013
FATHMM_MKL	Benign	0.60	D
LIST_S2	Benign	0.76	T
M_CAP	Benign	0.0057	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.0	M
MutationTaster	Benign	1.0	N
PrimateAI	Pathogenic	0.79	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.031
Sift	Benign	0.27	T
Sift4G	Benign	0.15	T
Polyphen		0.44	B
Vest4		0.19
MVP		0.17
MPC		0.22
ClinPred		0.82	D
GERP RS		1.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.18
gMVP		0.27

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-68694918; COSMIC: COSV58147760; COSMIC: COSV58147760;