Genetic Variant UBXN2B:p.Asp311His (chr8-58447486-G-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001077619.2(UBXN2B):c.931G>C(p.Asp311His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,144 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

UBXN2B
NM_001077619.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.90

Variant links:

Genes affected

UBXN2B (HGNC:27035): (UBX domain protein 2B) Predicted to enable ubiquitin binding activity. Involved in establishment of mitotic spindle orientation; negative regulation of protein localization to centrosome; and positive regulation of mitotic centrosome separation. Predicted to be located in Golgi apparatus; endoplasmic reticulum; and spindle pole centrosome. Predicted to be active in cytosol and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

UBXN2B links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.825

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UBXN2B	NM_001077619.2 link	c.931G>C	p.Asp311His	missense_variant	Exon 8 of 8	ENST00000399598.7	NP_001071087.1	Q14CS0
UBXN2B	NM_001363181.1 link	c.793G>C	p.Asp265His	missense_variant	Exon 7 of 7		NP_001350110.1
UBXN2B	NR_156456.1 link	n.1047G>C		non_coding_transcript_exon_variant	Exon 9 of 9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
UBXN2B	ENST00000399598.7 link	c.931G>C	p.Asp311His	missense_variant	Exon 8 of 8	1	NM_001077619.2	ENSP00000382507.2	Q14CS0
UBXN2B	ENST00000523409.5 link	n.*431G>C		non_coding_transcript_exon_variant	Exon 9 of 9	5		ENSP00000428314.1	E5RJ36
UBXN2B	ENST00000523409.5 link	n.*431G>C		3_prime_UTR_variant	Exon 9 of 9	5		ENSP00000428314.1	E5RJ36

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249316

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135248

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.00

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:

6.84e-7

AC:

AN:

1461144

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726880

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

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

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 10, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.931G>C (p.D311H) alteration is located in exon 8 (coding exon 8) of the UBXN2B gene. This alteration results from a G to C substitution at nucleotide position 931, causing the aspartic acid (D) at amino acid position 311 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Pathogenic

0.23

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.38

Eigen

Pathogenic

1.1

Eigen_PC

Pathogenic

1.0

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.073

MetaRNN

Pathogenic

0.82

MetaSVM

Uncertain

0.074

MutationAssessor

Pathogenic

3.6

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-4.7

REVEL

Uncertain

0.49

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.79

MutPred

0.62

Loss of ubiquitination at K307 (P = 0.1166);

MVP

0.83

MPC

0.50

ClinPred

0.99

GERP RS

6.1

Varity_R

0.70

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