NM_020385.4:c.257A>G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020385.4(REXO4):c.257A>G(p.Glu86Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000194 in 1,594,392 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

REXO4
NM_020385.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.632

Publications

0 publications found

Variant links:

Genes affected

REXO4 (HGNC:12820): (REX4 homolog, 3'-5' exonuclease) Enables DNA binding activity and nuclease activity. Involved in DNA catabolic process, endonucleolytic; DNA catabolic process, exonucleolytic; and DNA repair. Located in nuclear speck and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

REXO4 links:

ADAMTS13 (HGNC:1366): (ADAM metallopeptidase with thrombospondin type 1 motif 13) This gene encodes a member of a family of proteins containing several distinct regions, including a metalloproteinase domain, a disintegrin-like domain, and a thrombospondin type 1 (TS) motif. The enzyme encoded by this gene specifically cleaves von Willebrand Factor (vWF). Defects in this gene are associated with thrombotic thrombocytopenic purpura. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

ADAMTS13 Gene-Disease associations (from GenCC):

congenital thrombotic thrombocytopenic purpura
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, ClinGen, Labcorp Genetics (formerly Invitae)

ADAMTS13 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12494087).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020385.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
REXO4	NM_020385.4	MANE Select	c.257A>G	p.Glu86Gly	missense	Exon 2 of 8	NP_065118.2	Q9GZR2-1
REXO4	NM_001279351.1		c.-23A>G		5_prime_UTR	Exon 2 of 8	NP_001266280.1	Q9GZR2
REXO4	NM_001279350.2		c.-8-147A>G		intron	N/A	NP_001266279.1	B4E331

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
REXO4	ENST00000371942.8	TSL:1 MANE Select	c.257A>G	p.Glu86Gly	missense	Exon 2 of 8	ENSP00000361010.3	Q9GZR2-1
ADAMTS13	ENST00000485925.5	TSL:1	n.287+336T>C		intron	N/A
REXO4	ENST00000903994.1		c.281A>G	p.Glu94Gly	missense	Exon 2 of 8	ENSP00000574053.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000176

AC:

AN:

227076

AF XY:

0.0000243

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000380

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000201

AC:

AN:

1442248

Hom.:

Cov.:

AF XY:

0.0000181

AC XY:

AN XY:

716990

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31876

American (AMR)

AF:

0.00

AC:

AN:

38812

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25218

East Asian (EAS)

AF:

0.00

AC:

AN:

39634

South Asian (SAS)

AF:

0.00

AC:

AN:

81974

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52756

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5656

European-Non Finnish (NFE)

AF:

0.0000262

AC:

AN:

1106858

Other (OTH)

AF:

0.00

AC:

AN:

59464

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

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:

0.0000131

AC:

AN:

152144

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74328

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41428

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2094

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.350

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000113

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.42

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.014

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.54

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.63

M_CAP

Benign

0.0095

MetaRNN

Benign

0.12

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

PhyloP100

0.63

PrimateAI

Benign

0.25

PROVEAN

Uncertain

-2.9

REVEL

Benign

0.11

Sift

Uncertain

0.028

Sift4G

Benign

0.10

Polyphen

0.87

Vest4

0.16

MutPred

0.16

Loss of ubiquitination at K81 (P = 0.0245)

MVP

0.24

MPC

0.26

ClinPred

0.38

GERP RS

3.5

Varity_R

0.090

gMVP

0.098

Mutation Taster

=90/10

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

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

Computational scores

Splicing

Publications

Other links and lift over