Genetic Variant EXOSC6:p.Ala142Val (chr16-70251476-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_058219.3(EXOSC6):c.425C>T(p.Ala142Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000408 in 1,325,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

EXOSC6
NM_058219.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.56

Variant links:

Genes affected

EXOSC6 (HGNC:19055): (exosome component 6) This gene product constitutes one of the subunits of the multisubunit particle called exosome, which mediates mRNA degradation. The composition of human exosome is similar to its yeast counterpart. This protein is homologous to the yeast Mtr3 protein. Its exact function is not known, however, it has been shown using a cell-free RNA decay system that the exosome is required for rapid degradation of unstable mRNAs containing AU-rich elements (AREs), but not for poly(A) shortening. The exosome does not recognize ARE-containing mRNAs on its own, but requires ARE-binding proteins that could interact with the exosome and recruit it to unstable mRNAs, thereby promoting their rapid degradation. [provided by RefSeq, Jul 2008]

EXOSC6 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=0.4140102).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EXOSC6	NM_058219.3 link	c.425C>T	p.Ala142Val	missense_variant	Exon 1 of 1	ENST00000435634.3	NP_478126.1	Q5RKV6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EXOSC6	ENST00000435634.3 link	c.425C>T	p.Ala142Val	missense_variant	Exon 1 of 1	6	NM_058219.3	ENSP00000398597.1		Q5RKV6

Frequencies

GnomAD3 genomes

AF:

0.0000199

AC:

AN:

150794

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000660

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:

0.0000296

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000434

AC:

AN:

1174234

Hom.:

Cov.:

AF XY:

0.0000472

AC XY:

AN XY:

572212

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000195

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000790

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000464

Gnomad4 OTH exome

AF:

0.0000213

GnomAD4 genome

AF:

0.0000199

AC:

AN:

150794

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73604

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000660

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000296

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 17, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.425C>T (p.A142V) alteration is located in exon 1 (coding exon 1) of the EXOSC6 gene. This alteration results from a C to T substitution at nucleotide position 425, causing the alanine (A) at amino acid position 142 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

Benign

0.32

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.38

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.10

Eigen

Benign

-0.030

Eigen_PC

Benign

-0.063

FATHMM_MKL

Benign

0.71

LIST_S2

Benign

0.53

M_CAP

Pathogenic

0.87

MetaRNN

Benign

0.41

MetaSVM

Benign

-0.70

MutationAssessor

Uncertain

2.1

PrimateAI

Pathogenic

0.94

PROVEAN

Benign

-2.2

REVEL

Benign

0.19

Sift

Benign

0.16

Sift4G

Benign

0.17

Polyphen

0.94

Vest4

0.21

MutPred

0.48

Loss of disorder (P = 0.0596);

MVP

0.56

MPC

0.64

ClinPred

0.24

GERP RS

2.7

Varity_R

0.37

gMVP

0.38

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