4-68930634-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_024743.4(UGT2A3):​c.1216G>A​(p.Ala406Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,454 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

UGT2A3
NM_024743.4 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.17
Variant links:
Genes affected
UGT2A3 (HGNC:28528): (UDP glucuronosyltransferase family 2 member A3) Enables glucuronosyltransferase activity. Involved in cellular glucuronidation. Predicted to be integral component of membrane. Predicted to be active in intracellular membrane-bounded organelle. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.30802685).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UGT2A3NM_024743.4 linkuse as main transcriptc.1216G>A p.Ala406Thr missense_variant 5/6 ENST00000251566.9
UGT2A3XM_011532247.3 linkuse as main transcriptc.1234G>A p.Ala412Thr missense_variant 5/6
UGT2A3XM_047416177.1 linkuse as main transcriptc.349G>A p.Ala117Thr missense_variant 5/6
UGT2A3NR_024010.2 linkuse as main transcriptn.1357G>A non_coding_transcript_exon_variant 6/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UGT2A3ENST00000251566.9 linkuse as main transcriptc.1216G>A p.Ala406Thr missense_variant 5/61 NM_024743.4 P1
UGT2A3ENST00000503012.1 linkuse as main transcriptc.*392G>A 3_prime_UTR_variant, NMD_transcript_variant 6/72

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152034
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
250954
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135626
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461420
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727022
show subpopulations
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
AF:
0.00000658
AC:
1
AN:
152034
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

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 GeneticsSep 14, 2023The c.1216G>A (p.A406T) alteration is located in exon 5 (coding exon 5) of the UGT2A3 gene. This alteration results from a G to A substitution at nucleotide position 1216, causing the alanine (A) at amino acid position 406 to be replaced by a threonine (T). 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
0.10
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
19
DANN
Uncertain
0.98
DEOGEN2
Benign
0.17
T
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.41
FATHMM_MKL
Benign
0.038
N
M_CAP
Benign
0.0049
T
MetaRNN
Benign
0.31
T
MetaSVM
Benign
-0.76
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
0.95
N;N
PrimateAI
Benign
0.41
T
PROVEAN
Uncertain
-3.5
D
REVEL
Benign
0.12
Sift
Benign
0.27
T
Sift4G
Benign
0.52
T
Polyphen
1.0
D
Vest4
0.074
MutPred
0.66
Loss of ubiquitination at K407 (P = 0.1516);
MVP
0.54
MPC
0.0075
ClinPred
0.74
D
GERP RS
1.1
Varity_R
0.067
gMVP
0.13

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: rs1275788795; hg19: chr4-69796352; API