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GeneBe

3-126483421-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_144639.3(UROC1):c.1838C>T(p.Pro613Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000297 in 1,613,580 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 0.000053 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

UROC1
NM_144639.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.12
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09411383).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UROC1NM_144639.3 linkuse as main transcriptc.1838C>T p.Pro613Leu missense_variant 19/20 ENST00000290868.7
UROC1NM_001165974.2 linkuse as main transcriptc.2018C>T p.Pro673Leu missense_variant 20/21

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UROC1ENST00000290868.7 linkuse as main transcriptc.1838C>T p.Pro613Leu missense_variant 19/201 NM_144639.3 P1Q96N76-1
UROC1ENST00000383579.3 linkuse as main transcriptc.2018C>T p.Pro673Leu missense_variant 20/211 Q96N76-2

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152208
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000965
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
250758
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135762
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:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000274
AC:
40
AN:
1461372
Hom.:
0
Cov.:
35
AF XY:
0.0000303
AC XY:
22
AN XY:
726988
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:
0.0000324
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152208
Hom.:
0
Cov.:
34
AF XY:
0.0000403
AC XY:
3
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0000965
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:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000582
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

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 GeneticsFeb 21, 2024The c.1838C>T (p.P613L) alteration is located in exon 19 (coding exon 19) of the UROC1 gene. This alteration results from a C to T substitution at nucleotide position 1838, causing the proline (P) at amino acid position 613 to be replaced by a leucine (L). 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
0.074
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.56
Cadd
Benign
15
Dann
Benign
0.92
DEOGEN2
Benign
0.11
T;.
Eigen
Benign
-0.62
Eigen_PC
Benign
-0.58
FATHMM_MKL
Benign
0.12
N
LIST_S2
Uncertain
0.93
D;D
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.094
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.5
L;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-2.3
N;D
REVEL
Benign
0.012
Sift
Benign
0.087
T;T
Sift4G
Benign
0.17
T;T
Polyphen
0.0020
B;.
Vest4
0.091
MVP
0.40
MPC
0.071
ClinPred
0.085
T
GERP RS
3.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.033
gMVP
0.63

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: rs540556859; hg19: chr3-126202264; API