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GeneBe

2-68513120-A-T

Variant summary

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

The NM_173545.3(APLF):​c.382A>T​(p.Thr128Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,610,944 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 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

APLF
NM_173545.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.151
Variant links:
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]

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=0.017249763).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
APLFNM_173545.3 linkuse as main transcriptc.382A>T p.Thr128Ser missense_variant 4/10 ENST00000303795.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
APLFENST00000303795.9 linkuse as main transcriptc.382A>T p.Thr128Ser missense_variant 4/101 NM_173545.3 P1
APLFENST00000445692.5 linkuse as main transcriptc.382A>T p.Thr128Ser missense_variant, NMD_transcript_variant 4/115
APLFENST00000529851.5 linkuse as main transcriptc.310A>T p.Thr104Ser missense_variant, NMD_transcript_variant 3/95

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151644
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000388
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:
0.00000801
AC:
2
AN:
249788
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135064
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
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:
6.85e-7
AC:
1
AN:
1459182
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
725942
show subpopulations
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151762
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74186
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000389
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

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 GeneticsDec 12, 2023The c.382A>T (p.T128S) alteration is located in exon 4 (coding exon 4) of the APLF gene. This alteration results from a A to T substitution at nucleotide position 382, causing the threonine (T) at amino acid position 128 to be replaced by a serine (S). 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
0.10
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.74
CADD
Benign
6.3
DANN
Benign
0.74
DEOGEN2
Benign
0.035
T
Eigen
Benign
-0.91
Eigen_PC
Benign
-0.87
FATHMM_MKL
Benign
0.035
N
LIST_S2
Benign
0.46
T
M_CAP
Benign
0.0037
T
MetaRNN
Benign
0.017
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.4
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-0.61
N
REVEL
Benign
0.023
Sift
Benign
0.58
T
Sift4G
Benign
0.77
T
Polyphen
0.15
B
Vest4
0.12
MutPred
0.20
Gain of disorder (P = 0.0581);
MVP
0.23
MPC
0.061
ClinPred
0.029
T
GERP RS
0.47
Varity_R
0.043
gMVP
0.20

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: rs367820439; hg19: chr2-68740252; API