5-35965570-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000274278.8(UGT3A1):​c.659C>T​(p.Thr220Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,614,184 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

UGT3A1
ENST00000274278.8 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.32
Variant links:
Genes affected
UGT3A1 (HGNC:26625): (UDP glycosyltransferase family 3 member A1) Enables glucuronosyltransferase activity. Part of UDP-N-acetylglucosamine transferase complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.014291257).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
UGT3A1NM_152404.4 linkuse as main transcriptc.659C>T p.Thr220Ile missense_variant 4/7 ENST00000274278.8 NP_689617.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
UGT3A1ENST00000274278.8 linkuse as main transcriptc.659C>T p.Thr220Ile missense_variant 4/71 NM_152404.4 ENSP00000274278 P1Q6NUS8-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152178
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:
0.000577
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000756
AC:
19
AN:
251436
Hom.:
0
AF XY:
0.0000809
AC XY:
11
AN XY:
135890
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00103
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:
0.0000123
AC:
18
AN:
1461888
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000453
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
AF:
0.0000197
AC:
3
AN:
152296
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000578
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000416
ExAC
AF:
0.0000741
AC:
9

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 GeneticsJan 09, 2024The c.659C>T (p.T220I) alteration is located in exon 4 (coding exon 4) of the UGT3A1 gene. This alteration results from a C to T substitution at nucleotide position 659, causing the threonine (T) at amino acid position 220 to be replaced by an isoleucine (I). 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
0.14
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
0.016
DANN
Benign
0.89
DEOGEN2
Benign
0.0054
T;.;.;.;.
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.0071
N
LIST_S2
Benign
0.17
T;T;T;.;T
M_CAP
Benign
0.0053
T
MetaRNN
Benign
0.014
T;T;T;T;T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
1.8
L;.;.;.;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.30
N;N;N;.;N
REVEL
Benign
0.024
Sift
Benign
0.39
T;T;T;.;T
Sift4G
Benign
0.22
T;T;T;T;T
Polyphen
0.034
B;B;P;.;.
Vest4
0.056
MVP
0.048
MPC
0.030
ClinPred
0.063
T
GERP RS
-3.9
Varity_R
0.035
gMVP
0.27

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: rs200732514; hg19: chr5-35965672; API