17-49224362-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_178500.4(PHOSPHO1):​c.688C>A​(p.Arg230Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000283 in 1,411,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R230C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

PHOSPHO1
NM_178500.4 missense

Scores

10
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.44
Variant links:
Genes affected
PHOSPHO1 (HGNC:16815): (phosphoethanolamine/phosphocholine phosphatase 1) Enables pyrophosphatase activity. Predicted to be involved in bone mineralization involved in bone maturation. Predicted to act upstream of or within endochondral ossification. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.39060557).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PHOSPHO1NM_178500.4 linkuse as main transcriptc.688C>A p.Arg230Ser missense_variant 3/3 ENST00000310544.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PHOSPHO1ENST00000310544.9 linkuse as main transcriptc.688C>A p.Arg230Ser missense_variant 3/32 NM_178500.4 P1Q8TCT1-1
PHOSPHO1ENST00000514112.1 linkuse as main transcriptc.763C>A p.Arg255Ser missense_variant 2/21 Q8TCT1-3
PHOSPHO1ENST00000413580.5 linkuse as main transcriptc.763C>A p.Arg255Ser missense_variant 3/32 Q8TCT1-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000283
AC:
4
AN:
1411824
Hom.:
0
Cov.:
31
AF XY:
0.00000143
AC XY:
1
AN XY:
699122
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:
0.00000367
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

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 testingAmbry GeneticsAug 23, 2021The c.763C>A (p.R255S) alteration is located in exon 3 (coding exon 1) of the PHOSPHO1 gene. This alteration results from a C to A substitution at nucleotide position 763, causing the arginine (R) at amino acid position 255 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.47
BayesDel_addAF
Benign
-0.040
T
BayesDel_noAF
Benign
-0.30
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.30
T;.;.
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.91
D;D;.
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.39
T;T;T
MetaSVM
Benign
-0.65
T
MutationAssessor
Uncertain
2.0
M;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-2.7
D;D;D
REVEL
Benign
0.22
Sift
Uncertain
0.0040
D;D;D
Sift4G
Uncertain
0.023
D;D;D
Polyphen
0.97
D;.;.
Vest4
0.35
MutPred
0.56
Gain of disorder (P = 0.0922);.;.;
MVP
0.068
ClinPred
0.99
D
GERP RS
4.5
Varity_R
0.68
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: rs547226881; hg19: chr17-47301724; API