2-135778982-C-T

Position:

• chr2-135778982-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_014607.4(UBXN4):​c.1088C>T​(p.Ala363Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,296 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: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: UBXN4 NM_014607.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.13

Genes affected

UBXN4 (HGNC:14860): (UBX domain protein 4) UBXD2 is an integral membrane protein of the endoplasmic reticulum (ER) that binds valosin-containing protein (VCP; MIM 601023) and promotes ER-associated protein degradation (ERAD) (Liang et al., 2006 [PubMed 16968747]).[supplied by OMIM, Mar 2008]

ACMG classification

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, 0.82

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
UBXN4	NM_014607.4	c.1088C>T	p.Ala363Val	missense_variant	11/13	ENST00000272638.14

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
UBXN4	ENST00000272638.14	c.1088C>T	p.Ala363Val	missense_variant	11/13	1	NM_014607.4	P1
UBXN4	ENST00000471246.1	n.239C>T		non_coding_transcript_exon_variant	3/4	3
UBXN4	ENST00000490163.5	n.787C>T		non_coding_transcript_exon_variant	7/9	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460296 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726344

Gnomad4 AFR exome AF: 0.00

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: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 02, 2023

The c.1088C>T (p.A363V) alteration is located in exon 11 (coding exon 11) of the UBXN4 gene. This alteration results from a C to T substitution at nucleotide position 1088, causing the alanine (A) at amino acid position 363 to be replaced by a valine (V). 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	Pathogenic	0.73
BayesDel_addAF	Pathogenic	0.24	D
BayesDel_noAF	Uncertain	0.10
CADD	Pathogenic	26
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.064	T
Eigen	Uncertain	0.64
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.86	D
M_CAP	Benign	0.039	D
MetaRNN	Pathogenic	0.82	D
MetaSVM	Benign	-0.90	T
MutationAssessor	Benign	1.4	L
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.80	D
PROVEAN	Uncertain	-3.0	D
REVEL	Uncertain	0.39
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.018	D
Polyphen		1.0	D
Vest4		0.92
MutPred		0.56		Gain of sheet (P = 0.1208);
MVP		0.24
MPC		1.1
ClinPred		0.99	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.51
gMVP		0.68

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-136536552;