Genetic Variant EXOSC5:p.Ser227Leu (chr19-41386661-G-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_020158.4(EXOSC5):c.680C>T(p.Ser227Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000431 in 1,600,266 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000044 ( 1 hom. )

Consequence

EXOSC5
NM_020158.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.60

Variant links:

Genes affected

EXOSC5 (HGNC:24662): (exosome component 5) Predicted to enable RNA binding activity. Involved in DNA deamination and exonucleolytic catabolism of deadenylated mRNA. Acts upstream of or within defense response to virus. Located in nucleolus; nucleoplasm; and transcriptionally active chromatin. Part of exosome (RNase complex). [provided by Alliance of Genome Resources, Apr 2022]

EXOSC5 links:

ENSG00000255730 (HGNC:):

ENSG00000255730 links:

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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=0.3213498).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EXOSC5	NM_020158.4 link	c.680C>T	p.Ser227Leu	missense_variant	Exon 6 of 6	ENST00000221233.9	NP_064543.3	Q9NQT4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EXOSC5	ENST00000221233.9 link	c.680C>T	p.Ser227Leu	missense_variant	Exon 6 of 6	1	NM_020158.4	ENSP00000221233.3		Q9NQT4
ENSG00000255730	ENST00000540732.3 link	c.210+8142G>A		intron_variant	Intron 2 of 9	2		ENSP00000443246.1		F5H5P2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152204

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:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000446

AC:

AN:

224100

Hom.:

AF XY:

0.0000578

AC XY:

AN XY:

121202

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:

0.000144

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000603

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000442

AC:

AN:

1448062

Hom.:

Cov.:

AF XY:

0.0000515

AC XY:

AN XY:

718854

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000234

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000255

Gnomad4 SAS exome

AF:

0.000334

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000307

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74344

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:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000116

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.000116

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Oct 09, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.680C>T (p.S227L) alteration is located in exon 6 (coding exon 6) of the EXOSC5 gene. This alteration results from a C to T substitution at nucleotide position 680, causing the serine (S) at amino acid position 227 to be replaced by a leucine (L). 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

Pathogenic

0.57

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.20

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.21

T;T

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Benign

0.73

LIST_S2

Uncertain

0.94

D;D

M_CAP

Benign

0.0087

MetaRNN

Benign

0.32

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

L;.

PrimateAI

Uncertain

0.54

PROVEAN

Uncertain

-2.4

N;.

REVEL

Benign

0.18

Sift

Benign

0.16

T;.

Sift4G

Benign

0.34

T;T

Polyphen

0.95

P;.

Vest4

0.56

MutPred

0.50

Loss of disorder (P = 0.006);.;

MVP

0.23

MPC

0.72

ClinPred

0.31

GERP RS

5.1

Varity_R

0.32

gMVP

0.82

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.

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