20-1118873-G-T

Variant summary

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

The NM_006814.5(PSMF1):​c.100G>T​(p.Gly34Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000131 in 152,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 35)

Consequence

PSMF1
NM_006814.5 missense

Scores

2
11
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.67
Variant links:
Genes affected
PSMF1 (HGNC:9571): (proteasome inhibitor subunit 1) The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core 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. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase 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 protein that inhibits the activation of the proteasome by the 11S and 19S regulators. Alternative transcript variants have been identified for this gene. [provided by RefSeq, Jul 2008]

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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, 0.836

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PSMF1NM_006814.5 linkuse as main transcriptc.100G>T p.Gly34Cys missense_variant 1/7 ENST00000335877.11 NP_006805.2 Q92530A0A140VJT2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PSMF1ENST00000335877.11 linkuse as main transcriptc.100G>T p.Gly34Cys missense_variant 1/71 NM_006814.5 ENSP00000338039.6 Q92530

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152248
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152248
Hom.:
0
Cov.:
35
AF XY:
0.00
AC XY:
0
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

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 03, 2024The c.100G>T (p.G34C) alteration is located in exon 1 (coding exon 1) of the PSMF1 gene. This alteration results from a G to T substitution at nucleotide position 100, causing the glycine (G) at amino acid position 34 to be replaced by a cysteine (C). 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
0.40
BayesDel_addAF
Uncertain
0.032
T
BayesDel_noAF
Benign
-0.19
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.18
T;T;T;T
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.79
T;T;T;.
M_CAP
Uncertain
0.14
D
MetaRNN
Pathogenic
0.84
D;D;D;D
MetaSVM
Benign
-0.53
T
MutationAssessor
Uncertain
2.3
M;.;.;M
PrimateAI
Uncertain
0.54
T
PROVEAN
Pathogenic
-7.0
D;D;D;D
REVEL
Uncertain
0.44
Sift
Uncertain
0.0010
D;D;D;D
Sift4G
Uncertain
0.0050
D;D;D;D
Polyphen
1.0
D;.;D;D
Vest4
0.70
MutPred
0.76
Loss of loop (P = 0.0986);Loss of loop (P = 0.0986);Loss of loop (P = 0.0986);Loss of loop (P = 0.0986);
MVP
0.71
MPC
0.44
ClinPred
1.0
D
GERP RS
4.3
Varity_R
0.91
gMVP
0.77

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs951336480; hg19: chr20-1099516; API