rs766449630

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_020695.4(REXO1):c.3532C>T(p.Arg1178Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000882 in 1,587,572 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000084 ( 0 hom. )

Consequence

REXO1
NM_020695.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.83

Variant links:

Genes affected

REXO1 (HGNC:24616): (RNA exonuclease 1 homolog) Predicted to enable exonuclease activity. Predicted to be involved in nucleic acid phosphodiester bond hydrolysis. Located in nuclear body. [provided by Alliance of Genome Resources, Apr 2022]

REXO1 links:

MIR1909 (HGNC:35393): (microRNA 1909) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

MIR1909 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.859

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
REXO1	NM_020695.4 link	c.3532C>T	p.Arg1178Trp	missense_variant	Exon 15 of 16	ENST00000170168.9	NP_065746.3	Q8N1G1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
REXO1	ENST00000170168.9 link	c.3532C>T	p.Arg1178Trp	missense_variant	Exon 15 of 16	1	NM_020695.4	ENSP00000170168.3		Q8N1G1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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

GnomAD2 exomes

AF:

0.0000195

AC:

AN:

205420

AF XY:

0.0000181

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000674

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000644

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000112

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000836

AC:

AN:

1435390

Hom.:

Cov.:

AF XY:

0.00000843

AC XY:

AN XY:

711506

show subpopulations

African (AFR)

AF:

0.0000303

AC:

AN:

32988

American (AMR)

AF:

0.0000491

AC:

AN:

40700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25638

East Asian (EAS)

AF:

0.00

AC:

AN:

38556

South Asian (SAS)

AF:

0.0000121

AC:

AN:

82780

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50528

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5422

European-Non Finnish (NFE)

AF:

0.00000728

AC:

AN:

1099348

Other (OTH)

AF:

0.00

AC:

AN:

59430

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74342

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41436

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000166

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 19, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.3532C>T (p.R1178W) alteration is located in exon 15 (coding exon 15) of the REXO1 gene. This alteration results from a C to T substitution at nucleotide position 3532, causing the arginine (R) at amino acid position 1178 to be replaced by a tryptophan (W). 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

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Uncertain

0.11

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.46

T;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.91

LIST_S2

Pathogenic

0.99

D;D

M_CAP

Uncertain

0.19

MetaRNN

Pathogenic

0.86

D;D

MetaSVM

Benign

-0.55

MutationAssessor

Pathogenic

3.8

H;.

PhyloP100

3.8

PrimateAI

Pathogenic

0.85

PROVEAN

Pathogenic

-7.0

D;.

REVEL

Uncertain

0.59

Sift

Pathogenic

0.0

D;.

Sift4G

Pathogenic

0.0010

D;.

Polyphen

1.0

D;.

Vest4

0.79

MutPred

0.68

Gain of catalytic residue at M1181 (P = 0.0538);.;

MVP

0.50

MPC

0.50

ClinPred

0.99

GERP RS

4.0

Varity_R

0.72

gMVP

0.79

Mutation Taster

=86/14

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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rs766449630

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over