19-41386724-A-T

Position:

• chr19-41386724-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3 PP5

The NM_020158.4(EXOSC5):​c.617T>A​(p.Leu206His) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt.

• Frequency: Genomes: not found (cov: 32)
• Consequence: EXOSC5 NM_020158.4 missense, splice_region
• Scores: Splicing: ADA: 0.4726
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 6.80

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.79
• PP5: Variant 19-41386724-A-T is Pathogenic according to our data. Variant chr19-41386724-A-T is described in ClinVar as [Pathogenic]. Clinvar id is 1300246.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EXOSC5	NM_020158.4	c.617T>A	p.Leu206His	missense_variant, splice_region_variant	6/6	ENST00000221233.9	NP_064543.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EXOSC5	ENST00000221233.9	c.617T>A	p.Leu206His	missense_variant, splice_region_variant	6/6	1	NM_020158.4	ENSP00000221233	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Cerebellar ataxia, brain abnormalities, and cardiac conduction defects Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Oct 21, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.74
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.060
CADD	Pathogenic	29
DANN	Benign	0.95
DEOGEN2	Benign	0.11	T;T
Eigen	Uncertain	0.32
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.78	T;T
M_CAP	Benign	0.041	D
MetaRNN	Pathogenic	0.79	D;D
MetaSVM	Benign	-0.79	T
MutationAssessor	Benign	1.5	L;.
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	-0.69	N;.
REVEL	Uncertain	0.31
Sift	Benign	0.12	T;.
Sift4G	Uncertain	0.017	D;D
Polyphen		0.58	P;.
Vest4		0.72
MutPred		0.74		Gain of disorder (P = 0.0374);.;
MVP		0.41
MPC		0.82
ClinPred		0.77	D
GERP RS		5.1
Varity_R		0.41
gMVP		0.85

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.47
dbscSNV1_RF	Benign	0.35
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-41892629;