rs1555563409
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP4
The NM_018129.4(PNPO):c.754G>A(p.Glu252Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000547 in 1,461,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )
Consequence
PNPO
NM_018129.4 missense
NM_018129.4 missense
Scores
3
12
Clinical Significance
Conservation
PhyloP100: 5.31
Genes affected
PNPO (HGNC:30260): (pyridoxamine 5'-phosphate oxidase) The enzyme encoded by this gene catalyzes the terminal, rate-limiting step in the synthesis of pyridoxal 5'-phosphate, also known as vitamin B6. Vitamin B6 is a required co-factor for enzymes involved in both homocysteine metabolism and synthesis of neurotransmitters such as catecholamine. Mutations in this gene result in pyridoxamine 5'-phosphate oxidase (PNPO) deficiency, a form of neonatal epileptic encephalopathy. [provided by RefSeq, Oct 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM1
?
In a chain Pyridoxine-5'-phosphate oxidase (size 260) in uniprot entity PNPO_HUMAN there are 19 pathogenic changes around while only 2 benign (90%) in NM_018129.4
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (MetaRNN=0.2894081).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PNPO | NM_018129.4 | c.754G>A | p.Glu252Lys | missense_variant | 7/7 | ENST00000642017.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PNPO | ENST00000642017.2 | c.754G>A | p.Glu252Lys | missense_variant | 7/7 | NM_018129.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461866Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2AN XY: 727232
GnomAD4 exome
AF:
AC:
8
AN:
1461866
Hom.:
Cov.:
32
AF XY:
AC XY:
2
AN XY:
727232
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
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 submitter | clinical testing | Athena Diagnostics | Jun 13, 2017 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T;.;.;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D;D;D
M_CAP
Benign
D
MetaRNN
Benign
T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Benign
L;.;.;.
MutationTaster
Benign
D;D;D;D
PrimateAI
Benign
T
Polyphen
B;.;.;.
MutPred
Gain of ubiquitination at E252 (P = 0.0094);.;.;.;
MVP
0.80
MPC
0.63
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at