rs121918058

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong

The ENST00000246337.9(UROD):​c.499G>A​(p.Glu167Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

UROD
ENST00000246337.9 missense

Scores

14
4
1

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 9.24
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_pathogenic. Variant got 8 ACMG points.

PM1
In a helix (size 9) in uniprot entity DCUP_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in ENST00000246337.9
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.988

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
URODNM_000374.5 linkuse as main transcriptc.499G>A p.Glu167Lys missense_variant 6/10 ENST00000246337.9 NP_000365.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
URODENST00000246337.9 linkuse as main transcriptc.499G>A p.Glu167Lys missense_variant 6/101 NM_000374.5 ENSP00000246337 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461882
Hom.:
0
Cov.:
35
AF XY:
0.00000275
AC XY:
2
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hepatoerythropoietic porphyria Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMApr 01, 1991- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJul 02, 2021Not observed at significant frequency in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 27535533, 1905636, 8644733, 16169011, 21079081) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.84
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Pathogenic
0.57
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.95
D;T;T;D
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.99
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D;D;D;.
M_CAP
Pathogenic
0.66
D
MetaRNN
Pathogenic
0.99
D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.7
H;.;.;.
MutationTaster
Benign
1.0
A
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.5
D;.;.;D
REVEL
Pathogenic
0.96
Sift
Uncertain
0.0010
D;.;.;D
Sift4G
Uncertain
0.0020
D;.;.;D
Polyphen
1.0
D;.;.;.
Vest4
0.95
MutPred
0.96
Gain of MoRF binding (P = 0.0031);Gain of MoRF binding (P = 0.0031);Gain of MoRF binding (P = 0.0031);.;
MVP
0.99
MPC
1.3
ClinPred
1.0
D
GERP RS
5.8
Varity_R
0.97
gMVP
0.97

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs121918058; hg19: chr1-45479605; API