chr16-70251339-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_058219.3(EXOSC6):​c.562G>A​(p.Ala188Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000442 in 1,379,674 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: 𝑓 0.00023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

EXOSC6
NM_058219.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.03
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04762754).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
EXOSC6NM_058219.3 linkuse as main transcriptc.562G>A p.Ala188Thr missense_variant 1/1 ENST00000435634.3 NP_478126.1 Q5RKV6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
EXOSC6ENST00000435634.3 linkuse as main transcriptc.562G>A p.Ala188Thr missense_variant 1/16 NM_058219.3 ENSP00000398597.1 Q5RKV6

Frequencies

GnomAD3 genomes
AF:
0.000231
AC:
35
AN:
151832
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000846
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000432
AC:
1
AN:
23144
Hom.:
0
AF XY:
0.0000701
AC XY:
1
AN XY:
14258
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000212
AC:
26
AN:
1227732
Hom.:
0
Cov.:
29
AF XY:
0.0000200
AC XY:
12
AN XY:
599156
show subpopulations
Gnomad4 AFR exome
AF:
0.000902
Gnomad4 AMR exome
AF:
0.000152
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:
9.95e-7
Gnomad4 OTH exome
AF:
0.0000198
GnomAD4 genome
AF:
0.000230
AC:
35
AN:
151942
Hom.:
0
Cov.:
32
AF XY:
0.000229
AC XY:
17
AN XY:
74276
show subpopulations
Gnomad4 AFR
AF:
0.000844
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.000302

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 27, 2023The c.562G>A (p.A188T) alteration is located in exon 1 (coding exon 1) of the EXOSC6 gene. This alteration results from a G to A substitution at nucleotide position 562, causing the alanine (A) at amino acid position 188 to be replaced by a threonine (T). 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
0.079
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
2.9
DANN
Benign
0.82
DEOGEN2
Benign
0.00023
T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.036
N
LIST_S2
Benign
0.39
T
M_CAP
Pathogenic
0.58
D
MetaRNN
Benign
0.048
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.0
N
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-0.18
N
REVEL
Benign
0.093
Sift
Benign
0.50
T
Sift4G
Benign
0.75
T
Polyphen
0.0
B
Vest4
0.064
MutPred
0.30
Gain of phosphorylation at A188 (P = 0.0388);
MVP
0.57
MPC
0.59
ClinPred
0.042
T
GERP RS
-6.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.064
gMVP
0.19

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.

Other links and lift over

dbSNP: rs531713550; hg19: chr16-70285242; API