6-28283838-G-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032507.4(PGBD1):​c.25G>T​(p.Ala9Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000685 in 1,606,150 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

PGBD1
NM_032507.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.967

Publications

0 publications found
Variant links:
Genes affected
PGBD1 (HGNC:19398): (piggyBac transposable element derived 1) The piggyBac family of proteins, found in diverse animals, are transposases related to the transposase of the canonical piggyBac transposon from the moth, Trichoplusia ni. This family also includes genes in several genomes, including human, that appear to have been derived from the piggyBac transposons. This gene belongs to the subfamily of piggyBac transposable element derived (PGBD) genes. The PGBD proteins appear to be novel, with no obvious relationship to other transposases, or other known protein families. This gene product is specifically expressed in the brain, however, its exact function is not known. Alternative splicing results in multiple transcript variants encoding the same protein.[provided by RefSeq, May 2010]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04427907).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PGBD1NM_032507.4 linkc.25G>T p.Ala9Ser missense_variant Exon 2 of 7 ENST00000682144.1 NP_115896.1 Q96JS3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PGBD1ENST00000682144.1 linkc.25G>T p.Ala9Ser missense_variant Exon 2 of 7 NM_032507.4 ENSP00000506997.1 Q96JS3
PGBD1ENST00000259883.3 linkc.25G>T p.Ala9Ser missense_variant Exon 2 of 7 1 ENSP00000259883.3 Q96JS3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152206
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000550
AC:
8
AN:
1453944
Hom.:
0
Cov.:
30
AF XY:
0.00000554
AC XY:
4
AN XY:
721812
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33324
American (AMR)
AF:
0.00
AC:
0
AN:
44460
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25768
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39532
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85770
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53262
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5730
European-Non Finnish (NFE)
AF:
0.00000723
AC:
8
AN:
1106128
Other (OTH)
AF:
0.00
AC:
0
AN:
59970
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74358
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41436
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.408
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Mar 28, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.25G>T (p.A9S) alteration is located in exon 2 (coding exon 1) of the PGBD1 gene. This alteration results from a G to T substitution at nucleotide position 25, causing the alanine (A) at amino acid position 9 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
0.079
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
1.7
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0023
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.033
N
LIST_S2
Benign
0.25
T
M_CAP
Benign
0.0026
T
MetaRNN
Benign
0.044
T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
1.9
L
PhyloP100
-0.97
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.54
N
REVEL
Benign
0.044
Sift
Benign
0.091
T
Sift4G
Benign
0.069
T
Polyphen
0.020
B
Vest4
0.11
MutPred
0.19
Gain of phosphorylation at A9 (P = 0.0135);
MVP
0.23
ClinPred
0.093
T
GERP RS
-3.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.024
gMVP
0.10
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs1367747353; hg19: chr6-28251615; API