Genetic Variant UBQLN2:p.Ser7Arg (chrX-56563894-C-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_013444.4(UBQLN2):c.21C>G(p.Ser7Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000956 in 1,151,136 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.0000077 ( 0 hom. 1 hem. )

Consequence

UBQLN2
NM_013444.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.542

Variant links:

Genes affected

UBQLN2 (HGNC:12509): (ubiquilin 2) This gene encodes an ubiquitin-like protein (ubiquilin) that shares high degree of similarity with related products in yeast, rat and frog. Ubiquilins contain a N-terminal ubiquitin-like domain and a C-terminal ubiquitin-associated domain. They physically associate with both proteasomes and ubiquitin ligases; and thus, are thought to functionally link the ubiquitination machinery to the proteasome to affect in vivo protein degradation. This ubiquilin has also been shown to bind the ATPase domain of the Hsp70-like Stch protein. [provided by RefSeq, Oct 2009]

UBQLN2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.056657195).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UBQLN2	NM_013444.4 link	c.21C>G	p.Ser7Arg	missense_variant	Exon 1 of 1	ENST00000338222.7	NP_038472.2	Q9UHD9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UBQLN2	ENST00000338222.7 link	c.21C>G	p.Ser7Arg	missense_variant	Exon 1 of 1	6	NM_013444.4	ENSP00000345195.5		Q9UHD9

Frequencies

GnomAD3 genomes

AF:

0.0000266

AC:

AN:

112755

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34913

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000278

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:

0.0000787

AC:

AN:

101671

Hom.:

AF XY:

0.0000427

AC XY:

AN XY:

23439

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000434

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:

0.00

GnomAD4 exome

AF:

0.00000770

AC:

AN:

1038333

Hom.:

Cov.:

AF XY:

0.00000305

AC XY:

AN XY:

327645

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000291

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000266

AC:

AN:

112803

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34971

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000278

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

Bravo

AF:

0.0000340

ExAC

AF:

0.0000457

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Amyotrophic lateral sclerosis type 15

Uncertain:1

Jul 26, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant has not been reported in the literature in individuals with UBQLN2-related conditions. This variant is present in population databases (rs202132872, ExAC 0.03%). This sequence change replaces serine with arginine at codon 7 of the UBQLN2 protein (p.Ser7Arg). The serine residue is moderately conserved and there is a moderate physicochemical difference between serine and arginine. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.40

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.56

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.025

FATHMM_MKL

Benign

0.60

LIST_S2

Benign

0.79

M_CAP

Benign

0.044

MetaRNN

Benign

0.057

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.81

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-0.73

REVEL

Benign

0.13

Sift

Uncertain

0.028

Sift4G

Uncertain

0.057

Polyphen

0.069

Vest4

0.27

MutPred

0.11

Loss of phosphorylation at S7 (P = 0.005);

MVP

0.37

MPC

0.53

ClinPred

0.079

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.26

gMVP

0.62

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