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GeneBe

19-1818768-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020695.4(REXO1):c.2840C>T(p.Pro947Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000503 in 1,610,374 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

REXO1
NM_020695.4 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.94
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25596875).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
REXO1NM_020695.4 linkuse as main transcriptc.2840C>T p.Pro947Leu missense_variant 9/16 ENST00000170168.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
REXO1ENST00000170168.9 linkuse as main transcriptc.2840C>T p.Pro947Leu missense_variant 9/161 NM_020695.4 P2

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152236
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
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:
0.0000325
AC:
8
AN:
246026
Hom.:
0
AF XY:
0.0000298
AC XY:
4
AN XY:
134170
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000328
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000898
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000528
AC:
77
AN:
1458020
Hom.:
0
Cov.:
35
AF XY:
0.0000414
AC XY:
30
AN XY:
725442
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000176
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000513
Gnomad4 OTH exome
AF:
0.0000995
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152354
Hom.:
0
Cov.:
34
AF XY:
0.0000134
AC XY:
1
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000285
Hom.:
0
Bravo
AF:
0.0000340
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000413
AC:
5

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 GeneticsSep 12, 2023The c.2840C>T (p.P947L) alteration is located in exon 9 (coding exon 9) of the REXO1 gene. This alteration results from a C to T substitution at nucleotide position 2840, causing the proline (P) at amino acid position 947 to be replaced by a leucine (L). 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
0.11
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.38
Cadd
Uncertain
25
Dann
Uncertain
1.0
DEOGEN2
Benign
0.18
T;.
Eigen
Uncertain
0.27
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.82
T;D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.26
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.7
M;.
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.43
T
PROVEAN
Pathogenic
-7.0
D;.
REVEL
Benign
0.11
Sift
Uncertain
0.0030
D;.
Sift4G
Uncertain
0.0050
D;.
Polyphen
0.80
P;.
Vest4
0.63
MVP
0.16
MPC
0.12
ClinPred
0.71
D
GERP RS
4.6
Varity_R
0.37
gMVP
0.51

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs368368690; hg19: chr19-1818767; API