chr13-99238469-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001144072.2(UBAC2):​c.74C>T​(p.Ala25Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000353 in 1,613,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

UBAC2
NM_001144072.2 missense

Scores

5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.36
Variant links:
Genes affected
UBAC2 (HGNC:20486): (UBA domain containing 2) Involved in negative regulation of canonical Wnt signaling pathway and negative regulation of retrograde protein transport, ER to cytosol. Acts upstream of or within protein localization to endoplasmic reticulum. Located in endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10788366).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UBAC2NM_001144072.2 linkuse as main transcriptc.74C>T p.Ala25Val missense_variant 2/9 ENST00000403766.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UBAC2ENST00000403766.8 linkuse as main transcriptc.74C>T p.Ala25Val missense_variant 2/92 NM_001144072.2 P1Q8NBM4-1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000557
AC:
14
AN:
251370
Hom.:
0
AF XY:
0.0000515
AC XY:
7
AN XY:
135864
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000544
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:
0.0000335
AC:
49
AN:
1461616
Hom.:
0
Cov.:
30
AF XY:
0.0000303
AC XY:
22
AN XY:
727138
show subpopulations
Gnomad4 AFR exome
AF:
0.000239
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000957
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152166
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.000145
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.0000444
Hom.:
0
Bravo
AF:
0.0000680
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 09, 2023The c.74C>T (p.A25V) alteration is located in exon 2 (coding exon 2) of the UBAC2 gene. This alteration results from a C to T substitution at nucleotide position 74, causing the alanine (A) at amino acid position 25 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
Benign
0.087
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.023
.;T;T
Eigen
Benign
0.11
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.87
D;D;D
M_CAP
Benign
0.0070
T
MetaRNN
Benign
0.11
T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.72
D;N
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
0.21
N;N;N
REVEL
Benign
0.059
Sift
Benign
0.85
T;T;T
Sift4G
Benign
0.19
T;T;T
Polyphen
0.0090
.;B;.
Vest4
0.51
MutPred
0.41
Gain of loop (P = 0.0851);Gain of loop (P = 0.0851);.;
MVP
0.57
MPC
0.37
ClinPred
0.18
T
GERP RS
5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.092
gMVP
0.24

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.

Other links and lift over

dbSNP: rs752611174; hg19: chr13-99890723; API