chr4-69639023-T-G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001105677.2(UGT2A2):​c.618A>C​(p.Leu206Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000868 in 1,613,276 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 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: 0.0000089 ( 0 hom. )

Consequence

UGT2A2
NM_001105677.2 missense

Scores

3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.90

Publications

1 publications found
Variant links:
Genes affected
UGT2A2 (HGNC:28183): (UDP glucuronosyltransferase family 2 member A2) The protein encoded by this gene belongs to the UDP-glycosyltransferase family. Members of this protein family play a role in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. The encoded enzyme is expressed in the olfactory neuroepithelium, which lines the posterior nasal cavity and is exposed to a wide range of odorants and airborne toxic compounds. Hence, this protein has been suggested to be involved in clearing lipophilic odorant molecules from the sensory epithelium. This gene shares exon structure with the UDP glucuronosyltransferase 2A1 family member, which encodes N-terminally distinct isoforms. Polymorphisms in this gene may be associated with the loss of taste and smell that is reported by some individuals during SARS-CoV-2 infection. [provided by RefSeq, Jan 2022]
UGT2A1 (HGNC:12542): (UDP glucuronosyltransferase family 2 member A1 complex locus) The protein encoded by this gene belongs to the UDP-glycosyltransferase family. Members of this protein family play a role in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. The encoded enzyme is expressed in the olfactory neuroepithelium, which lines the posterior nasal cavity and is exposed to a wide range of odorants and airborne toxic compounds. Hence, this protein has been suggested to be involved in clearing lipophilic odorant molecules from the sensory epithelium. This gene shares exon structure with the UDP glucuronosyltransferase 2A2 family member, which encodes N-terminally distinct isoforms. Polymorphisms in this gene may be associated with the loss of taste and smell that is reported by some individuals during SARS-CoV-2 infection. [provided by RefSeq, Jan 2022]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.17249739).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001105677.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UGT2A2
NM_001105677.2
MANE Select
c.618A>Cp.Leu206Phe
missense
Exon 1 of 6NP_001099147.2P0DTE5-1
UGT2A1
NM_001252275.3
MANE Select
c.716-3201A>C
intron
N/ANP_001239204.2P0DTE4-5
UGT2A1
NM_001389565.1
c.1221A>Cp.Leu407Phe
missense
Exon 3 of 8NP_001376494.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UGT2A2
ENST00000604629.6
TSL:1 MANE Select
c.618A>Cp.Leu206Phe
missense
Exon 1 of 6ENSP00000475028.2P0DTE5-1
UGT2A2
ENST00000604021.1
TSL:1
c.618A>Cp.Leu206Phe
missense
Exon 1 of 5ENSP00000474383.2P0DTE5-2
UGT2A1
ENST00000286604.9
TSL:1 MANE Select
c.716-3201A>C
intron
N/AENSP00000286604.4P0DTE4-5

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152098
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:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000362
AC:
9
AN:
248296
AF XY:
0.0000297
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.00000890
AC:
13
AN:
1461178
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
726854
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33466
American (AMR)
AF:
0.00
AC:
0
AN:
44630
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26116
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.000128
AC:
11
AN:
86190
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53348
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111636
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60332
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152098
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74288
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41442
American (AMR)
AF:
0.00
AC:
0
AN:
15252
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67992
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
ExAC
AF:
0.0000414
AC:
5

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.30
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
19
DANN
Uncertain
1.0
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.42
FATHMM_MKL
Benign
0.18
N
LIST_S2
Benign
0.65
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-0.75
T
PhyloP100
-1.9
PrimateAI
Benign
0.48
T
PROVEAN
Uncertain
-2.4
N
REVEL
Uncertain
0.34
Sift
Benign
0.073
T
Sift4G
Benign
0.83
T
Vest4
0.53
MutPred
0.52
Loss of sheet (P = 0.0037)
MVP
0.31
ClinPred
0.24
T
GERP RS
0.93
gMVP
0.21
Mutation Taster
=71/29
polymorphism

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

Other links and lift over

dbSNP: rs746099029; hg19: chr4-70504741; API