chr14-58267520-T-C

Position:

chr14-58267520-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_002788.4(PSMA3):c.590T>C(p.Ile197Thr) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000152 in 1,575,658 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

PSMA3
NM_002788.4 missense, splice_region

Scores

Splicing: ADA: 0.9515

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.29

Variant links:

Genes affected

PSMA3 (HGNC:9532): (proteasome 20S subunit alpha 3) The proteasome is a multicatalytic proteinase complex with a highly ordered ring-shaped 20S core structure. The core structure is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes a member of the peptidase T1A family, that is a 20S core alpha subunit. Two alternative transcripts encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

PSMA3 links:

PSMA3-AS1 (HGNC:26445): (PSMA3 antisense RNA 1)

PSMA3-AS1 links:

(HGNC:):

links:

ARMH4 (HGNC:19846): (armadillo like helical domain containing 4) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ARMH4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.827

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PSMA3	NM_002788.4 linkuse as main transcript	c.590T>C	p.Ile197Thr	missense_variant, splice_region_variant	8/11	ENST00000216455.9
PSMA3-AS1	NR_029435.1 linkuse as main transcript	n.414-127A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PSMA3	ENST00000216455.9 linkuse as main transcript	c.590T>C	p.Ile197Thr	missense_variant, splice_region_variant	8/11	1	NM_002788.4	P4	P25788-1
PSMA3-AS1	ENST00000554360.5 linkuse as main transcript	n.447-127A>G		intron_variant, non_coding_transcript_variant		1
	ENST00000557322.1 linkuse as main transcript	n.456-2041T>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152196

Hom.:

Cov.:

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000178

AC:

AN:

224604

Hom.:

AF XY:

0.0000164

AC XY:

AN XY:

121978

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:

0.00

Gnomad NFE exome

AF:

0.0000375

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000155

AC:

AN:

1423462

Hom.:

Cov.:

AF XY:

0.0000127

AC XY:

AN XY:

706904

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000267

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:

0.0000191

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000111

Hom.:

Bravo

AF:

0.0000189

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 27, 2021

This variant is present in population databases (rs142139987, gnomAD 0.004%). This sequence change replaces isoleucine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 197 of the PSMA3 protein (p.Ile197Thr). This variant has not been reported in the literature in individuals affected with PSMA3-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.96

BayesDel_addAF

Uncertain

0.015

BayesDel_noAF

Benign

-0.10

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

T;.;T

Eigen

Pathogenic

0.72

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Pathogenic

0.98

D;D;D

M_CAP

Benign

0.023

MetaRNN

Pathogenic

0.83

D;D;D

MetaSVM

Benign

-0.88

MutationAssessor

Uncertain

2.4

M;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.89

PROVEAN

Uncertain

-4.3

D;D;D

REVEL

Uncertain

0.39

Sift

Pathogenic

0.0

D;D;D

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

0.99

D;D;.

Vest4

0.93

MVP

0.45

MPC

0.13

ClinPred

0.97

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.84

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.95

dbscSNV1_RF

Pathogenic

0.90

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over