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3-126482378-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_144639.3(UROC1):​c.1998C>T​(p.Asp666=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000429 in 1,613,706 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00044 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00043 ( 0 hom. )

Consequence

UROC1
NM_144639.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.34
Variant links:
Genes affected
UROC1 (HGNC:26444): (urocanate hydratase 1) This gene encodes an enzyme involved in the second step of histidine catabolism, metabolizing urocanic acid to formiminoglutamic acid. Deficiency of this enzyme results in urocanic aciduria, and is an apparent cause of mental retardation. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2021]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 3-126482378-G-A is Benign according to our data. Variant chr3-126482378-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2654094.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-1.34 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UROC1NM_144639.3 linkuse as main transcriptc.1998C>T p.Asp666= synonymous_variant 20/20 ENST00000290868.7
UROC1NM_001165974.2 linkuse as main transcriptc.2178C>T p.Asp726= synonymous_variant 21/21

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UROC1ENST00000290868.7 linkuse as main transcriptc.1998C>T p.Asp666= synonymous_variant 20/201 NM_144639.3 P1Q96N76-1
UROC1ENST00000383579.3 linkuse as main transcriptc.2178C>T p.Asp726= synonymous_variant 21/211 Q96N76-2

Frequencies

GnomAD3 genomes
AF:
0.000440
AC:
67
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000555
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000617
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000310
AC:
77
AN:
248560
Hom.:
0
AF XY:
0.000326
AC XY:
44
AN XY:
134808
show subpopulations
Gnomad AFR exome
AF:
0.000435
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.000330
Gnomad NFE exome
AF:
0.000492
Gnomad OTH exome
AF:
0.000329
GnomAD4 exome
AF:
0.000428
AC:
626
AN:
1461400
Hom.:
0
Cov.:
31
AF XY:
0.000437
AC XY:
318
AN XY:
726982
show subpopulations
Gnomad4 AFR exome
AF:
0.000269
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.000677
Gnomad4 NFE exome
AF:
0.000500
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.000440
AC:
67
AN:
152306
Hom.:
0
Cov.:
32
AF XY:
0.000336
AC XY:
25
AN XY:
74468
show subpopulations
Gnomad4 AFR
AF:
0.000553
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000617
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000400
Hom.:
0
Bravo
AF:
0.000382
EpiCase
AF:
0.000327
EpiControl
AF:
0.000475

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenSep 01, 2022UROC1: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.0090
DANN
Benign
0.20

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: rs199712731; hg19: chr3-126201221; COSMIC: COSV52036757; API