rs121918066

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 1P and 2B. PP5BP4BS1_Supporting

The NM_000374.5(UROD):​c.995G>A​(p.Arg332His) variant causes a missense change. The variant allele was found at a frequency of 0.000118 in 1,614,156 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R332C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

UROD
NM_000374.5 missense

Scores

3
6
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:2

Conservation

PhyloP100: 5.29
Variant links:
Genes affected
UROD (HGNC:12591): (uroporphyrinogen decarboxylase) This gene encodes an enzyme in the heme biosynthetic pathway. This enzyme is responsible for catalyzing the conversion of uroporphyrinogen to coproporphyrinogen through the removal of four carboxymethyl side chains. Mutations and deficiency in this enzyme are known to cause familial porphyria cutanea tarda and hepatoerythropoetic porphyria.[provided by RefSeq, Aug 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PP5
Variant 1-45015389-G-A is Pathogenic according to our data. Variant chr1-45015389-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 76.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Pathogenic=1}. Variant chr1-45015389-G-A is described in Lovd as [Pathogenic].
BP4
Computational evidence support a benign effect (MetaRNN=0.117539674). . Strength limited to SUPPORTING due to the PP5.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000722 (11/152272) while in subpopulation SAS AF= 0.00228 (11/4818). AF 95% confidence interval is 0.00128. There are 1 homozygotes in gnomad4. There are 9 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
URODNM_000374.5 linkc.995G>A p.Arg332His missense_variant Exon 10 of 10 ENST00000246337.9 NP_000365.3 P06132

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
URODENST00000246337.9 linkc.995G>A p.Arg332His missense_variant Exon 10 of 10 1 NM_000374.5 ENSP00000246337.4 P06132

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152154
Hom.:
1
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:
0.00228
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000290
AC:
73
AN:
251410
Hom.:
0
AF XY:
0.000383
AC XY:
52
AN XY:
135884
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:
0.00235
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000123
AC:
180
AN:
1461884
Hom.:
1
Cov.:
31
AF XY:
0.000182
AC XY:
132
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00195
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.0000722
AC:
11
AN:
152272
Hom.:
1
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00228
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.000387
AC:
47
Asia WGS
AF:
0.00231
AC:
8
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:2Uncertain:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Familial porphyria cutanea tarda Pathogenic:2Uncertain:2
Nov 21, 2022
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: research

- -

Nov 01, 1998
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only

- -

May 04, 2022
Mendelics
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 08, 2021
Centogene AG - the Rare Disease Company
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.059
T
BayesDel_noAF
Pathogenic
0.14
CADD
Benign
20
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.89
D;T
Eigen
Benign
0.080
Eigen_PC
Benign
0.20
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.082
D
MetaRNN
Benign
0.12
T;T
MetaSVM
Uncertain
0.43
D
MutationAssessor
Uncertain
2.1
M;.
PrimateAI
Benign
0.32
T
PROVEAN
Uncertain
-2.7
D;.
REVEL
Uncertain
0.64
Sift
Benign
0.10
T;.
Sift4G
Benign
0.15
T;.
Polyphen
0.18
B;.
Vest4
0.72
MutPred
0.86
Gain of catalytic residue at R332 (P = 0.0803);.;
MVP
0.96
MPC
0.50
ClinPred
0.14
T
GERP RS
5.2
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.0
Varity_R
0.33
gMVP
0.73

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: rs121918066; hg19: chr1-45481061; API