NM_080632.3:c.1121G>A

Variant names:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_080632.3(UPF3B):c.1121G>A(p.Arg374His) variant causes a missense change. The variant allele was found at a frequency of 0.000539 in 1,208,797 control chromosomes in the GnomAD database, including 2 homozygotes. There are 179 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0016 ( 1 hom., 43 hem., cov: 22)

Exomes 𝑓: 0.00043 ( 1 hom. 136 hem. )

Consequence

UPF3B
NM_080632.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 5.54

Variant links:

Genes affected

UPF3B (HGNC:20439): (UPF3B regulator of nonsense mediated mRNA decay) This gene encodes a protein that is part of a post-splicing multiprotein complex involved in both mRNA nuclear export and mRNA surveillance. The encoded protein is one of two functional homologs to yeast Upf3p. mRNA surveillance detects exported mRNAs with truncated open reading frames and initiates nonsense-mediated mRNA decay (NMD). When translation ends upstream from the last exon-exon junction, this triggers NMD to degrade mRNAs containing premature stop codons. This protein binds to the mRNA and remains bound after nuclear export, acting as a nucleocytoplasmic shuttling protein. It forms with Y14 a complex that binds specifically 20 nt upstream of exon-exon junctions. This gene is located on the long arm of chromosome X. Two splice variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

UPF3B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.009404898).

BP6

Variant X-119837938-C-T is Benign according to our data. Variant chrX-119837938-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 212546.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=4}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00159 (177/111215) while in subpopulation AFR AF= 0.00513 (157/30587). AF 95% confidence interval is 0.00448. There are 1 homozygotes in gnomad4. There are 43 alleles in male gnomad4 subpopulation. Median coverage is 22. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd4 at 43 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UPF3B	NM_080632.3 link	c.1121G>A	p.Arg374His	missense_variant	Exon 10 of 11	ENST00000276201.7	NP_542199.1	Q9BZI7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UPF3B	ENST00000276201.7 link	c.1121G>A	p.Arg374His	missense_variant	Exon 10 of 11	1	NM_080632.3	ENSP00000276201.3		Q9BZI7-1
UPF3B	ENST00000345865.6 link	c.1082G>A	p.Arg361His	missense_variant	Exon 9 of 10	1		ENSP00000245418.2		Q9BZI7-2

Frequencies

GnomAD3 genomes

AF:

0.00159

AC:

177

AN:

111160

Hom.:

Cov.:

AF XY:

0.00129

AC XY:

AN XY:

33356

show subpopulations

Gnomad AFR

AF:

0.00514

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000872

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000381

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00202

GnomAD3 exomes

AF:

0.000521

AC:

AN:

182342

Hom.:

AF XY:

0.000418

AC XY:

AN XY:

66934

show subpopulations

Gnomad AFR exome

AF:

0.00593

Gnomad AMR exome

AF:

0.000146

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000530

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.000443

GnomAD4 exome

AF:

0.000433

AC:

475

AN:

1097582

Hom.:

Cov.:

AF XY:

0.000375

AC XY:

136

AN XY:

363042

show subpopulations

Gnomad4 AFR exome

AF:

0.00763

Gnomad4 AMR exome

AF:

0.000171

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000925

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000277

Gnomad4 OTH exome

AF:

0.000608

GnomAD4 genome

AF:

0.00159

AC:

177

AN:

111215

Hom.:

Cov.:

AF XY:

0.00129

AC XY:

AN XY:

33421

show subpopulations

Gnomad4 AFR

AF:

0.00513

Gnomad4 AMR

AF:

0.000870

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000382

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00199

Alfa

AF:

0.000312

Hom.:

Bravo

AF:

0.00195

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00574

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000568

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1Benign:2

Sep 14, 2017

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 30, 2018

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Jul 09, 2015

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Syndromic X-linked intellectual disability 14

Benign:1

Jan 11, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Benign:1

Dec 23, 2016

Ambry Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Uncertain

-0.060

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.14

T;.

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.92

D;D

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.0094

T;T

MetaSVM

Uncertain

0.17

MutationAssessor

Pathogenic

3.0

M;.

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.9

N;N

REVEL

Uncertain

0.43

Sift

Uncertain

0.0040

D;D

Sift4G

Uncertain

0.054

T;T

Polyphen

1.0

D;D

Vest4

0.14

MVP

0.92

MPC

1.4

ClinPred

0.052

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.38

gMVP

0.042

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over