2-233682328-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_019077.3(UGT1A7):​c.391C>T​(p.Arg131Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000015 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

UGT1A7
NM_019077.3 stop_gained

Scores

3
4

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.934
Variant links:
Genes affected
UGT1A7 (HGNC:12539): (UDP glucuronosyltransferase family 1 member A7) This gene encodes a UDP-glucuronosyltransferase, an enzyme of the glucuronidation pathway that transforms small lipophilic molecules, such as steroids, bilirubin, hormones, and drugs, into water-soluble, excretable metabolites. This gene is part of a complex locus that encodes several UDP-glucuronosyltransferases. The locus includes thirteen unique alternate first exons followed by four common exons. Four of the alternate first exons are considered pseudogenes. Each of the remaining nine 5' exons may be spliced to the four common exons, resulting in nine proteins with different N-termini and identical C-termini. Each first exon encodes the substrate binding site, and is regulated by its own promoter. The enzyme encoded by this gene has moderate glucuronidase activity with phenols. [provided by RefSeq, Jul 2008]
UGT1A10 (HGNC:12531): (UDP glucuronosyltransferase family 1 member A10) This gene encodes a UDP-glucuronosyltransferase, an enzyme of the glucuronidation pathway that transforms small lipophilic molecules, such as steroids, bilirubin, hormones, and drugs, into water-soluble, excretable metabolites. This gene is part of a complex locus that encodes several UDP-glucuronosyltransferases. The locus includes thirteen unique alternate first exons followed by four common exons. Four of the alternate first exons are considered pseudogenes. Each of the remaining nine 5' exons may be spliced to the four common exons, resulting in nine proteins with different N-termini and identical C-termini. Each first exon encodes the substrate binding site, and is regulated by its own promoter. The enzyme encoded by this gene has glucuronidase activity on mycophenolic acid, coumarins, and quinolines. [provided by RefSeq, Jul 2008]
UGT1A8 (HGNC:12540): (UDP glucuronosyltransferase family 1 member A8) This gene encodes a UDP-glucuronosyltransferase, an enzyme of the glucuronidation pathway that transforms small lipophilic molecules, such as steroids, bilirubin, hormones, and drugs, into water-soluble, excretable metabolites. This gene is part of a complex locus that encodes several UDP-glucuronosyltransferases. The locus includes thirteen unique alternate first exons followed by four common exons. Four of the alternate first exons are considered pseudogenes. Each of the remaining nine 5' exons may be spliced to the four common exons, resulting in nine proteins with different N-termini and identical C-termini. Each first exon encodes the substrate binding site, and is regulated by its own promoter. The enzyme encoded by this gene has glucuronidase activity with many substrates including coumarins, phenols, anthraquinones, flavones, and some opioids. [provided by RefSeq, Jul 2008]
UGT1A9 (HGNC:12541): (UDP glucuronosyltransferase family 1 member A9) This gene encodes a UDP-glucuronosyltransferase, an enzyme of the glucuronidation pathway that transforms small lipophilic molecules, such as steroids, bilirubin, hormones, and drugs, into water-soluble, excretable metabolites. This gene is part of a complex locus that encodes several UDP-glucuronosyltransferases. The locus includes thirteen unique alternate first exons followed by four common exons. Four of the alternate first exons are considered pseudogenes. Each of the remaining nine 5' exons may be spliced to the four common exons, resulting in nine proteins with different N-termini and identical C-termini. Each first exon encodes the substrate binding site, and is regulated by its own promoter. The enzyme encoded by this gene is active on phenols. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
UGT1A7NM_019077.3 linkuse as main transcriptc.391C>T p.Arg131Ter stop_gained 1/5 ENST00000373426.4 NP_061950.2
UGT1A10NM_019075.4 linkuse as main transcriptc.855+44951C>T intron_variant ENST00000344644.10 NP_061948.1
UGT1A8NM_019076.5 linkuse as main transcriptc.855+63766C>T intron_variant ENST00000373450.5 NP_061949.3
UGT1A9NM_021027.3 linkuse as main transcriptc.855+9539C>T intron_variant ENST00000354728.5 NP_066307.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
UGT1A7ENST00000373426.4 linkuse as main transcriptc.391C>T p.Arg131Ter stop_gained 1/51 NM_019077.3 ENSP00000362525 P1Q9HAW7-1
UGT1A10ENST00000344644.10 linkuse as main transcriptc.855+44951C>T intron_variant 1 NM_019075.4 ENSP00000343838 P1Q9HAW8-1
UGT1A9ENST00000354728.5 linkuse as main transcriptc.855+9539C>T intron_variant 1 NM_021027.3 ENSP00000346768 P1O60656-1
UGT1A8ENST00000373450.5 linkuse as main transcriptc.855+63766C>T intron_variant 1 NM_019076.5 ENSP00000362549 P1Q9HAW9-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000124
AC:
3
AN:
242314
Hom.:
0
AF XY:
0.0000229
AC XY:
3
AN XY:
131250
show subpopulations
Gnomad AFR exome
AF:
0.0000664
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000332
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000921
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000151
AC:
22
AN:
1461656
Hom.:
0
Cov.:
99
AF XY:
0.0000206
AC XY:
15
AN XY:
727114
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
ExAC
AF:
0.0000330
AC:
4

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.058
T
BayesDel_noAF
Uncertain
0.030
CADD
Pathogenic
34
DANN
Uncertain
0.99
Eigen
Benign
-0.43
Eigen_PC
Benign
-0.81
FATHMM_MKL
Benign
0.076
N
MutationTaster
Benign
1.0
N;N;A;N;N
Vest4
0.48
GERP RS
-1.2

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs17863778; hg19: chr2-234590974; API