Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 11P and 2B. PM5PP3PP5_Very_StrongBP4BS2_Supporting

The NM_016042.4(EXOSC3):c.238G>T(p.Val80Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00016 in 1,608,334 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V80D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00090 ( 6 hom., cov: 32)

Exomes 𝑓: 0.000083 ( 1 hom. )

Consequence

EXOSC3
NM_016042.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:11O:1

Conservation

PhyloP100: 7.37

Publications

11 publications found

Variant links:

Genes affected

EXOSC3 (HGNC:17944): (exosome component 3) This gene encodes a non-catalytic component of the human exosome, a complex with 3'-5' exoribonuclease activity that plays a role in numerous RNA processing and degradation activities. Related pseudogenes of this gene are found on chromosome 19 and 21. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jun 2012]

EXOSC3 Gene-Disease associations (from GenCC):

pontocerebellar hypoplasia type 1B
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P, Illumina
pontocerebellar hypoplasia type 1
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

EXOSC3 links:

ENSG00000255872 (HGNC:):

ENSG00000255872 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr9-37784807-C-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 426671.Status of the report is criteria_provided_single_submitter, 1 stars.

PP3

Multiple lines of computational evidence support a deleterious effect 8: AlphaMissense, BayesDel_noAF, Cadd, Eigen, M_CAP, PrimateAI, REVEL, REVEL [when max_spliceai, FATHMM_MKL, MetaRNN, MutationTaster was below the threshold]

PP5

Variant 9-37784807-C-A is Pathogenic according to our data. Variant chr9-37784807-C-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 129024.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.19264564). . Strength limited to SUPPORTING due to the PP5.

BS2

High Homozygotes in GnomAd4 at 6 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016042.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EXOSC3	NM_016042.4	MANE Select	c.238G>T	p.Val80Phe	missense	Exon 1 of 4	NP_057126.2
	EXOSC3	NM_001002269.2		c.238G>T	p.Val80Phe	missense	Exon 1 of 3	NP_001002269.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
EXOSC3	ENST00000327304.10	TSL:1 MANE Select	c.238G>T	p.Val80Phe	missense	Exon 1 of 4	ENSP00000323046.4
ENSG00000255872	ENST00000540557.1	TSL:5	n.*761-744G>T		intron	N/A	ENSP00000457548.1
EXOSC3	ENST00000396521.3	TSL:2	c.238G>T	p.Val80Phe	missense	Exon 1 of 3	ENSP00000379775.3

Frequencies

GnomAD3 genomes

AF:

0.000900

AC:

137

AN:

152252

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.107

Gnomad AMR

AF:

0.00170

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000413

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000153

AC:

AN:

234882

AF XY:

0.000132

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000238

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000142

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000831

AC:

121

AN:

1455964

Hom.:

Cov.:

AF XY:

0.0000773

AC XY:

AN XY:

724310

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33412

American (AMR)

AF:

0.000226

AC:

AN:

44236

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26012

East Asian (EAS)

AF:

0.00

AC:

AN:

39554

South Asian (SAS)

AF:

0.000420

AC:

AN:

85744

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50762

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.0000648

AC:

AN:

1110368

Other (OTH)

AF:

0.0000333

AC:

AN:

60120

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000899

AC:

137

AN:

152370

Hom.:

Cov.:

AF XY:

0.000953

AC XY:

AN XY:

74506

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41590

American (AMR)

AF:

0.00170

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000414

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000162

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000923

Hom.:

Bravo

AF:

0.00110

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000991

AC:

ClinVar

ClinVar submissions as Germline

Significance:Pathogenic/Likely pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Pontocerebellar hypoplasia type 1B (8)

not provided (2)

Pontoneocerebellar hypoplasia (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Pathogenic

0.31

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.23

Eigen

Pathogenic

0.77

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.87

M_CAP

Pathogenic

0.69

MetaRNN

Benign

0.19

MetaSVM

Uncertain

0.41

MutationAssessor

Uncertain

2.8

PhyloP100

7.4

PrimateAI

Pathogenic

0.88

PROVEAN

Uncertain

-3.0

REVEL

Pathogenic

0.84

Sift

Benign

0.054

Sift4G

Uncertain

0.014

Polyphen

0.94

Vest4

0.96

MVP

0.84

MPC

0.55

ClinPred

0.77

GERP RS

5.5

PromoterAI

-0.11

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.86

gMVP

0.88

Mutation Taster

=8/92

disease causing (ClinVar)

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

rs374550999

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over