rs775715153

chrX-119838412-A-G

Variant summary

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

The NM_080632.3(UPF3B):c.962T>C(p.Leu321Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000024 in 1,210,537 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 12 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000071 ( 0 hom., 2 hem., cov: 23)

Exomes 𝑓: 0.000019 ( 0 hom. 10 hem. )

Consequence

UPF3B
NM_080632.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 1.18

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=0.02790618).

BP6

Variant X-119838412-A-G is Benign according to our data. Variant chrX-119838412-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 212548.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0000711 (8/112489) while in subpopulation AMR AF= 0.000757 (8/10572). AF 95% confidence interval is 0.000376. There are 0 homozygotes in gnomad4. There are 2 alleles in male gnomad4 subpopulation. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
UPF3B	NM_080632.3 linkuse as main transcript	c.962T>C	p.Leu321Ser	missense_variant	9/11	ENST00000276201.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
UPF3B	ENST00000276201.7 linkuse as main transcript	c.962T>C	p.Leu321Ser	missense_variant	9/11	1	NM_080632.3	A1	Q9BZI7-1
UPF3B	ENST00000345865.6 linkuse as main transcript	c.923T>C	p.Leu308Ser	missense_variant	8/10	1		P4	Q9BZI7-2
UPF3B	ENST00000478840.1 linkuse as main transcript	n.602T>C		non_coding_transcript_exon_variant	6/6	3

Frequencies

GnomAD3 genomes

AF:

0.0000711

AC:

AN:

112489

Hom.:

Cov.:

AF XY:

0.0000577

AC XY:

AN XY:

34637

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000757

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

GnomAD3 exomes

AF:

0.0000874

AC:

AN:

183062

Hom.:

AF XY:

0.0000888

AC XY:

AN XY:

67558

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000439

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000884

GnomAD4 exome

AF:

0.0000191

AC:

AN:

1098048

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

363408

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000398

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000356

Gnomad4 OTH exome

AF:

0.0000868

GnomAD4 genome

AF:

0.0000711

AC:

AN:

112489

Hom.:

Cov.:

AF XY:

0.0000577

AC XY:

AN XY:

34637

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000757

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000193

ExAC

AF:

0.0000824

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Sep 24, 2014

- -

Syndromic X-linked intellectual disability 14

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.091

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.58

Cadd

Benign

Dann

Uncertain

0.98

DEOGEN2

Benign

0.013

T;.

FATHMM_MKL

Benign

0.068

LIST_S2

Benign

0.57

T;T

M_CAP

Benign

0.034

MetaRNN

Benign

0.028

T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

1.7

L;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.41

PROVEAN

Benign

0.59

N;N

REVEL

Benign

0.12

Sift

Benign

0.88

T;T

Sift4G

Benign

0.74

T;T

Polyphen

0.013

B;B

Vest4

0.18

MutPred

0.28

Gain of phosphorylation at L321 (P = 0.0013);.;

MVP

0.38

MPC

0.58

ClinPred

0.033

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.053

gMVP

0.030

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