rs72557935

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001395413.1(POR):​c.1346C>T​(p.Pro449Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000238 in 1,599,172 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 (★). Synonymous variant affecting the same amino acid position (i.e. P449P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

POR
NM_001395413.1 missense

Scores

12
3
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.96
Variant links:
Genes affected
POR (HGNC:9208): (cytochrome p450 oxidoreductase) This gene encodes an endoplasmic reticulum membrane oxidoreductase that is essential for multiple metabolic processes, including reactions catalyzed by cytochrome P450 proteins for metabolism of steroid hormones, drugs and xenobiotics. The encoded protein has a flavin adenine dinucleotide (FAD)-binding domain and a flavodoxin-like domain which bind two cofactors, FAD and FMN, that allow it to donate electrons directly from NADPH to all microsomal P450 enzymes. Mutations in this gene cause a complex set of disorders, including apparent combined P450C17 and P450C21 deficiency, amenorrhea and disordered steroidogenesis, congenital adrenal hyperplasia and Antley-Bixler syndrome, that resemble those caused by defects in steroid metabolizing enzymes such as aromatase, 21-hydroxylase, and 17 alpha-hydroxylase. [provided by RefSeq, Aug 2020]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.949

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PORNM_001395413.1 linkuse as main transcriptc.1346C>T p.Pro449Leu missense_variant 12/16 ENST00000461988.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PORENST00000461988.6 linkuse as main transcriptc.1346C>T p.Pro449Leu missense_variant 12/161 NM_001395413.1 P4

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152248
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000441
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000428
AC:
10
AN:
233668
Hom.:
0
AF XY:
0.0000542
AC XY:
7
AN XY:
129098
show subpopulations
Gnomad AFR exome
AF:
0.0000690
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:
0.0000831
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000221
AC:
32
AN:
1446806
Hom.:
0
Cov.:
36
AF XY:
0.0000194
AC XY:
14
AN XY:
720224
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000672
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:
0.0000234
Gnomad4 OTH exome
AF:
0.0000332
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152366
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74504
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000864
Hom.:
0
Bravo
AF:
0.0000416
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000120
AC:
1
ExAC
AF:
0.00000834
AC:
1
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

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 testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 14, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.39
CADD
Pathogenic
32
DANN
Uncertain
1.0
Eigen
Pathogenic
0.77
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
1.0
.;.;D
M_CAP
Pathogenic
0.40
D
MetaRNN
Pathogenic
0.95
D;D;D
MetaSVM
Pathogenic
0.97
D
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-9.5
D;D;D
REVEL
Pathogenic
0.82
Sift
Uncertain
0.0010
D;D;D
Sift4G
Pathogenic
0.0010
D;D;D
Vest4
0.94
MVP
0.96
MPC
0.55
ClinPred
1.0
D
GERP RS
4.6
gMVP
0.75

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: rs72557935; hg19: chr7-75614482; API