Genetic Variant NM_013444.4:c.968C>A (chrX-56564841-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_013444.4(UBQLN2):c.968C>A(p.Pro323Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000182 in 1,097,963 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P323L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 23)

Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )

Consequence

UBQLN2
NM_013444.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.69

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

amyotrophic lateral sclerosis type 15
Inheritance: XL Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
amyotrophic lateral sclerosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

UBQLN2 links:

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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=0.12241134).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UBQLN2	NM_013444.4 link	c.968C>A	p.Pro323Gln	missense_variant	Exon 1 of 1	ENST00000338222.7	NP_038472.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UBQLN2	ENST00000338222.7 link	c.968C>A	p.Pro323Gln	missense_variant	Exon 1 of 1	6	NM_013444.4	ENSP00000345195.5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000182

AC:

AN:

1097963

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

363317

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26400

American (AMR)

AF:

0.00

AC:

AN:

35178

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19384

East Asian (EAS)

AF:

0.00

AC:

AN:

30204

South Asian (SAS)

AF:

0.00

AC:

AN:

54082

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40518

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4136

European-Non Finnish (NFE)

AF:

0.00000238

AC:

AN:

841972

Other (OTH)

AF:

0.00

AC:

AN:

46089

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.046

BayesDel_noAF

Benign

-0.30

CADD

Benign

(source)

DANN

Benign

0.62

DEOGEN2

Benign

0.021

FATHMM_MKL

Benign

0.73

LIST_S2

Benign

0.78

M_CAP

Pathogenic

0.32

MetaRNN

Benign

0.12

MetaSVM

Benign

-0.87

MutationAssessor

Benign

0.46

PhyloP100

1.7

PrimateAI

Benign

0.42

PROVEAN

Benign

0.69

REVEL

Uncertain

0.29

Sift

Benign

0.76

Sift4G

Benign

0.72

Polyphen

0.14

Vest4

0.23

MutPred

0.18

Loss of glycosylation at P323 (P = 0.0059);

MVP

0.79

MPC

0.45

ClinPred

0.12

GERP RS

4.0

Varity_R

0.11

gMVP

0.65

Mutation Taster

=82/18

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over