Genetic Variant NM_058219.3:c.502G>C (chr16-70251399-C-G) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_058219.3(EXOSC6):c.502G>C(p.Ala168Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000661 in 151,292 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A168S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

EXOSC6
NM_058219.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.03

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 Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.949

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EXOSC6	NM_058219.3 link	c.502G>C	p.Ala168Pro	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.502G>C	p.Ala168Pro	missense_variant	Exon 1 of 1	6	NM_058219.3	ENSP00000398597.1		Q5RKV6

Frequencies

GnomAD3 genomes

AF:

0.00000661

AC:

AN:

151292

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:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1192432

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

580984

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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

AF:

0.00000661

AC:

AN:

151292

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

73886

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:

0.0000148

Gnomad4 OTH

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.89

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.31

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.49

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.76

M_CAP

Pathogenic

0.97

MetaRNN

Pathogenic

0.95

MetaSVM

Pathogenic

0.89

MutationAssessor

Pathogenic

4.0

PrimateAI

Pathogenic

0.95

PROVEAN

Pathogenic

-4.7

REVEL

Pathogenic

0.92

Sift

Uncertain

0.0060

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.75

MutPred

0.78

Loss of stability (P = 0.0476);

MVP

0.98

MPC

1.8

ClinPred

1.0

GERP RS

3.2

Varity_R

0.99

gMVP

0.86

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over