rs72557914

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001395413.1(POR):​c.622G>A​(p.Asp208Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000855 in 1,544,604 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. D208D) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000092 ( 0 hom. )

Consequence

POR
NM_001395413.1 missense

Scores

4
8
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.63
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 Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PORNM_001395413.1 linkuse as main transcriptc.622G>A p.Asp208Asn missense_variant 6/16 ENST00000461988.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PORENST00000461988.6 linkuse as main transcriptc.622G>A p.Asp208Asn missense_variant 6/161 NM_001395413.1 P4

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152238
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000833
AC:
13
AN:
156108
Hom.:
0
AF XY:
0.0000957
AC XY:
8
AN XY:
83602
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:
0.000408
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000320
Gnomad OTH exome
AF:
0.000466
GnomAD4 exome
AF:
0.0000919
AC:
128
AN:
1392248
Hom.:
0
Cov.:
31
AF XY:
0.0000875
AC XY:
60
AN XY:
685858
show subpopulations
Gnomad4 AFR exome
AF:
0.0000317
Gnomad4 AMR exome
AF:
0.0000284
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000242
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000948
Gnomad4 OTH exome
AF:
0.0000869
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152356
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000829
Hom.:
0
Bravo
AF:
0.0000416
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000442
AC:
5

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.15
CADD
Pathogenic
33
DANN
Pathogenic
1.0
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Uncertain
0.94
D
M_CAP
Uncertain
0.18
D
MetaRNN
Uncertain
0.73
D;D
MetaSVM
Uncertain
0.44
D
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-4.8
D;D
REVEL
Pathogenic
0.67
Sift
Uncertain
0.0040
D;D
Sift4G
Uncertain
0.0030
D;D
Vest4
0.75
MVP
0.71
MPC
0.48
ClinPred
0.91
D
GERP RS
4.5
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: rs72557914; hg19: chr7-75610480; API