18-26134066-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001025096.2(PSMA8):​c.101C>T​(p.Ala34Val) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,458,428 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

PSMA8
NM_001025096.2 missense, splice_region

Scores

10
8
Splicing: ADA: 0.6864
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.55
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3012012).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PSMA8NM_001025096.2 linkuse as main transcriptc.101C>T p.Ala34Val missense_variant, splice_region_variant 1/7 ENST00000415576.7 NP_001020267.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PSMA8ENST00000415576.7 linkuse as main transcriptc.101C>T p.Ala34Val missense_variant, splice_region_variant 1/71 NM_001025096.2 ENSP00000409284 P3Q8TAA3-5
PSMA8ENST00000308268.10 linkuse as main transcriptc.101C>T p.Ala34Val missense_variant, splice_region_variant 1/71 ENSP00000311121 A1Q8TAA3-1
PSMA8ENST00000343848.10 linkuse as main transcriptc.101C>T p.Ala34Val missense_variant, splice_region_variant 1/71 ENSP00000345584 Q8TAA3-2
PSMA8ENST00000538664.2 linkuse as main transcriptc.101C>T p.Ala34Val missense_variant, splice_region_variant, NMD_transcript_variant 1/81 ENSP00000440327

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251420
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135892
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1458428
Hom.:
0
Cov.:
28
AF XY:
0.00
AC XY:
0
AN XY:
725780
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

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 28, 2023The c.101C>T (p.A34V) alteration is located in exon 1 (coding exon 1) of the PSMA8 gene. This alteration results from a C to T substitution at nucleotide position 101, causing the alanine (A) at amino acid position 34 to be replaced by a valine (V). 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
Uncertain
0.42
BayesDel_addAF
Uncertain
0.017
T
BayesDel_noAF
Uncertain
-0.040
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.16
.;.;T
Eigen
Uncertain
0.23
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.93
D;D;D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.30
T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.72
T
PROVEAN
Uncertain
-3.3
D;D;D
REVEL
Benign
0.17
Sift
Benign
0.13
T;T;T
Sift4G
Benign
0.25
T;T;T
Polyphen
0.90
P;B;P
Vest4
0.27
MutPred
0.54
Loss of ubiquitination at K30 (P = 0.0615);Loss of ubiquitination at K30 (P = 0.0615);Loss of ubiquitination at K30 (P = 0.0615);
MVP
0.30
MPC
0.14
ClinPred
0.94
D
GERP RS
4.4
Varity_R
0.24
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.69
dbscSNV1_RF
Benign
0.38
SpliceAI score (max)
0.030
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: rs777581252; hg19: chr18-23714030; API