rs587781263

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP2PP3_ModeratePP5_Moderate

The NM_002764.4(PRPS1):​c.925G>T​(p.Val309Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 23)

Consequence

PRPS1
NM_002764.4 missense

Scores

12
4
1

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 9.32
Variant links:
Genes affected
PRPS1 (HGNC:9462): (phosphoribosyl pyrophosphate synthetase 1) This gene encodes an enzyme that catalyzes the phosphoribosylation of ribose 5-phosphate to 5-phosphoribosyl-1-pyrophosphate, which is necessary for purine metabolism and nucleotide biosynthesis. Defects in this gene are a cause of phosphoribosylpyrophosphate synthetase superactivity, Charcot-Marie-Tooth disease X-linked recessive type 5 and Arts Syndrome. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2011]

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;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PRPS1. . Gene score misZ: 3.7321 (greater than the threshold 3.09). The gene has 32 curated pathogenic missense variants (we use a threshold of 10). The gene has 18 curated benign missense variants. GenCC has associacion of the gene with severe phosphoribosylpyrophosphate synthetase superactivity, Arts syndrome, PRPS1 deficiency disorder, X-linked intellectual disability-limb spasticity-retinal dystrophy-diabetes insipidus syndrome, mild phosphoribosylpyrophosphate synthetase superactivity, Charcot-Marie-Tooth disease X-linked recessive 5, phosphoribosylpyrophosphate synthetase superactivity, X-linked nonsyndromic hearing loss, hearing loss, X-linked 1.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.882
PP5
Variant X-107650000-G-T is Pathogenic according to our data. Variant chrX-107650000-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 140573.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chrX-107650000-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PRPS1NM_002764.4 linkc.925G>T p.Val309Phe missense_variant 7/7 ENST00000372435.10 NP_002755.1 P60891-1
PRPS1NM_001204402.2 linkc.313G>T p.Val105Phe missense_variant 4/4 NP_001191331.1 P60891B7ZB02

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PRPS1ENST00000372435.10 linkc.925G>T p.Val309Phe missense_variant 7/71 NM_002764.4 ENSP00000361512.4 P60891-1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD4 exome
Cov.:
30
GnomAD4 genome
Cov.:
23

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Charcot-Marie-Tooth disease X-linked recessive 5 Pathogenic:2
Pathogenic, no assertion criteria providedliterature onlyOMIMSep 03, 2014- -
Pathogenic, criteria provided, single submitterresearchMolecular Genetics and RNA Biology, University of MilanOct 01, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Pathogenic
0.48
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.84
D;D;.
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Pathogenic
0.38
D
MetaRNN
Pathogenic
0.88
D;D;D
MetaSVM
Uncertain
0.18
D
MutationAssessor
Pathogenic
3.7
.;H;.
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-4.4
.;D;.
REVEL
Pathogenic
0.83
Sift
Pathogenic
0.0
.;D;.
Sift4G
Pathogenic
0.0010
D;D;.
Polyphen
0.96
.;D;.
Vest4
0.86
MutPred
0.55
.;Loss of phosphorylation at Y311 (P = 0.1661);.;
MVP
0.99
MPC
3.3
ClinPred
1.0
D
GERP RS
4.0
Varity_R
0.99
gMVP
0.99

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: rs587781263; hg19: chrX-106893230; API