2-53888773-G-T

Position:

• chr2-53888773-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_014614.3(PSME4):​c.4336C>A​(p.Leu1446Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PSME4 NM_014614.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.445

Genes affected

PSME4 (HGNC:20635): (proteasome activator subunit 4) Predicted to enable lysine-acetylated histone binding activity; peptidase activator activity; and proteasome binding activity. Predicted to be involved in DNA repair; proteasomal ubiquitin-independent protein catabolic process; and spermatogenesis, exchange of chromosomal proteins. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12072718).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PSME4	NM_014614.3	c.4336C>A	p.Leu1446Met	missense_variant	38/47	ENST00000404125.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PSME4	ENST00000404125.6	c.4336C>A	p.Leu1446Met	missense_variant	38/47	1	NM_014614.3	P1
PSME4	ENST00000389993.7	c.*2469C>A		3_prime_UTR_variant, NMD_transcript_variant	37/46	1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460900 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726758

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 30, 2024

The c.4336C>A (p.L1446M) alteration is located in exon 38 (coding exon 38) of the PSME4 gene. This alteration results from a C to A substitution at nucleotide position 4336, causing the leucine (L) at amino acid position 1446 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	0.096
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	10
DANN	Benign	0.96
DEOGEN2	Benign	0.099	T
Eigen	Benign	-0.67
Eigen_PC	Benign	-0.61
FATHMM_MKL	Benign	0.43	N
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.0036	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.2	L
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-0.31	N
REVEL	Benign	0.032
Sift	Benign	0.23	T
Sift4G	Benign	0.27	T
Polyphen		0.17	B
Vest4		0.32
MutPred		0.48		Loss of stability (P = 0.0621);
MVP		0.16
MPC		0.28
ClinPred		0.24	T
GERP RS		-1.2
Varity_R		0.13
gMVP		0.24

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-54115910;