rs28936677

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_001122764.3(PPOX):ā€‹c.35T>Cā€‹(p.Ile12Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000149 in 1,613,674 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 Pathogenic (no stars).

Frequency

Genomes: š‘“ 0.000046 ( 0 hom., cov: 33)
Exomes š‘“: 0.000012 ( 0 hom. )

Consequence

PPOX
NM_001122764.3 missense

Scores

11
6
2

Clinical Significance

Pathogenic no assertion criteria provided P:2

Conservation

PhyloP100: 3.74
Variant links:
Genes affected
PPOX (HGNC:9280): (protoporphyrinogen oxidase) This gene encodes the penultimate enzyme of heme biosynthesis, which catalyzes the 6-electron oxidation of protoporphyrinogen IX to form protoporphyrin IX. Mutations in this gene cause variegate porphyria, an autosomal dominant disorder of heme metabolism resulting from a deficiency in protoporphyrinogen oxidase, an enzyme located on the inner mitochondrial membrane. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.973
PP5
Variant 1-161166882-T-C is Pathogenic according to our data. Variant chr1-161166882-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 8703.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PPOXNM_001122764.3 linkuse as main transcriptc.35T>C p.Ile12Thr missense_variant 2/13 ENST00000367999.9 NP_001116236.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PPOXENST00000367999.9 linkuse as main transcriptc.35T>C p.Ile12Thr missense_variant 2/131 NM_001122764.3 ENSP00000356978 P1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152228
Hom.:
0
Cov.:
33
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:
0.00
Gnomad FIN
AF:
0.000659
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000240
AC:
6
AN:
249558
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135292
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:
0.000282
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1461446
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
8
AN XY:
727060
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:
0.000302
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152228
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74372
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:
0.00
Gnomad4 FIN
AF:
0.000659
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Variegate porphyria Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMApr 01, 2001- -
Variegate porphyria, childhood-onset Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMApr 01, 2001- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.54
D
BayesDel_noAF
Pathogenic
0.54
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.80
D;D;.;T;T;.
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Benign
0.72
D
LIST_S2
Uncertain
0.95
.;D;D;D;D;D
M_CAP
Pathogenic
0.43
D
MetaRNN
Pathogenic
0.97
D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.2
M;M;.;.;.;.
MutationTaster
Benign
1.0
A;A;A;A;A
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-4.3
D;D;.;N;N;.
REVEL
Pathogenic
0.93
Sift
Uncertain
0.0020
D;D;.;D;D;.
Sift4G
Uncertain
0.0030
D;D;.;T;D;.
Polyphen
1.0
D;D;.;D;.;.
Vest4
0.48
MutPred
0.92
Gain of disorder (P = 0.0155);Gain of disorder (P = 0.0155);Gain of disorder (P = 0.0155);Gain of disorder (P = 0.0155);Gain of disorder (P = 0.0155);Gain of disorder (P = 0.0155);
MVP
0.99
MPC
1.5
ClinPred
0.90
D
GERP RS
5.3
Varity_R
0.95
gMVP
0.96

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: rs28936677; hg19: chr1-161136672; API