18-26144582-A-G

Variant summary

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

The NM_001025096.2(PSMA8):ā€‹c.126A>Gā€‹(p.Ile42Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000855 in 1,613,094 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000099 ( 0 hom., cov: 32)
Exomes š‘“: 0.000084 ( 0 hom. )

Consequence

PSMA8
NM_001025096.2 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0990
Variant links:
Genes affected
PSMA8 (HGNC:22985): (proteasome 20S subunit alpha 8) Predicted to be involved in meiotic cell cycle and proteasomal protein catabolic process. Located in extracellular exosome and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PSMA8NM_001025096.2 linkuse as main transcriptc.126A>G p.Ile42Met missense_variant 2/7 ENST00000415576.7 NP_001020267.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PSMA8ENST00000415576.7 linkuse as main transcriptc.126A>G p.Ile42Met missense_variant 2/71 NM_001025096.2 ENSP00000409284 P3Q8TAA3-5

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000206
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000517
AC:
13
AN:
251346
Hom.:
0
AF XY:
0.0000736
AC XY:
10
AN XY:
135844
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000968
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000842
AC:
123
AN:
1460906
Hom.:
0
Cov.:
29
AF XY:
0.0000839
AC XY:
61
AN XY:
726830
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:
0.0000187
Gnomad4 NFE exome
AF:
0.000110
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000986
AC:
15
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74338
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000206
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000154
Hom.:
0
Bravo
AF:
0.0000869
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.000382
EpiControl
AF:
0.000356

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 GeneticsApr 26, 2024The c.126A>G (p.I42M) alteration is located in exon 2 (coding exon 2) of the PSMA8 gene. This alteration results from a A to G substitution at nucleotide position 126, causing the isoleucine (I) at amino acid position 42 to be replaced by a methionine (M). 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
0.15
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
20
DANN
Benign
0.77
DEOGEN2
Benign
0.082
.;T;.
Eigen
Benign
-0.30
Eigen_PC
Benign
-0.23
FATHMM_MKL
Benign
0.69
D
LIST_S2
Uncertain
0.97
D;D;D
M_CAP
Benign
0.014
T
MetaRNN
Uncertain
0.52
D;D;D
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.64
T
PROVEAN
Benign
-1.5
N;N;.
REVEL
Benign
0.20
Sift
Uncertain
0.010
D;D;.
Sift4G
Benign
0.23
T;T;T
Polyphen
0.032
B;B;.
Vest4
0.87
MVP
0.19
MPC
0.61
ClinPred
0.11
T
GERP RS
2.9
Varity_R
0.31
gMVP
0.44

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: rs373058718; hg19: chr18-23724546; API