rs137853006

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong

The NM_006017.3(PROM1):​c.1117C>T​(p.Arg373Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,456,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PROM1
NM_006017.3 missense

Scores

1
4
14

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:19

Conservation

PhyloP100: 0.303
Variant links:
Genes affected
PROM1 (HGNC:9454): (prominin 1) This gene encodes a pentaspan transmembrane glycoprotein. The protein localizes to membrane protrusions and is often expressed on adult stem cells, where it is thought to function in maintaining stem cell properties by suppressing differentiation. Mutations in this gene have been shown to result in retinitis pigmentosa and Stargardt disease. Expression of this gene is also associated with several types of cancer. This gene is expressed from at least five alternative promoters that are expressed in a tissue-dependent manner. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM1
In a topological_domain Extracellular (size 254) in uniprot entity PROM1_HUMAN there are 14 pathogenic changes around while only 4 benign (78%) in NM_006017.3
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.983
PP5
Variant 4-16013299-G-A is Pathogenic according to our data. Variant chr4-16013299-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 5610.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr4-16013299-G-A is described in Lovd as [Pathogenic]. Variant chr4-16013299-G-A is described in Lovd as [Likely_pathogenic]. Variant chr4-16013299-G-A is described in Lovd as [Pathogenic]. Variant chr4-16013299-G-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PROM1NM_006017.3 linkuse as main transcriptc.1117C>T p.Arg373Cys missense_variant 11/28 ENST00000447510.7 NP_006008.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PROM1ENST00000447510.7 linkuse as main transcriptc.1117C>T p.Arg373Cys missense_variant 11/281 NM_006017.3 ENSP00000415481 P3O43490-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1456900
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
725068
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.03e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000850
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:19
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:8
Pathogenic, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Pathogenic, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Pathogenic, criteria provided, single submitterclinical testingInstitute of Medical Genetics and Applied Genomics, University Hospital TübingenJun 17, 2021- -
Pathogenic, criteria provided, single submitterclinical testingGeneDxAug 16, 2024Transgenic mice carrying the R373C variant show progressive retinal abnormalities, and functional studies demonstrate a damaging effect with reduced actin binding as well as protein mislocalization (PMID: 18654668); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 28840994, 29847639, 12657606, 23161075, 25356976, 26667666, 25133751, 28559085, 32531858, 31144483, 31129250, 10205271, 25590640, 27624628, 28076437, 27160483, 26103963, 20393116, 28041643, 23891399, 31054281, 32820593, 32534057, 31736247, 32581362, 34008001, 33090715, 30653986, 22581970, 22183351, 20859302, 29555955, 36259723, 38072963, 36460718, 31213501, 36729443, 36819107, 36909829, 33749171, 36284460, 37734845, 30926958, 18654668) -
Pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMay 01, 2022PROM1: PP1:Strong, PS4, PM2, PP4, PS3:Supporting, BP4 -
Pathogenic, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Pathogenic, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Nov 22, 2016- -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 373 of the PROM1 protein (p.Arg373Cys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This missense change has been observed in individual(s) with autosomal dominant forms of retinal dystrophy (PMID: 18654668, 20393116, 22183351, 28559085, 29847639). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 5610). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt PROM1 protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects PROM1 function (PMID: 18654668). For these reasons, this variant has been classified as Pathogenic. -
Retinal dystrophy Pathogenic:3
Likely pathogenic, no assertion criteria providedresearchNIHR Bioresource Rare Diseases, University of CambridgeJan 01, 2015- -
Pathogenic, criteria provided, single submitterclinical testingBlueprint GeneticsJul 18, 2019- -
Pathogenic, criteria provided, single submitterresearchDept Of Ophthalmology, Nagoya UniversityOct 01, 2023- -
Retinal macular dystrophy type 2 Pathogenic:2
Pathogenic, no assertion criteria providedliterature onlyOMIMSep 01, 2010- -
Pathogenic, criteria provided, single submitterresearchOphthalmic Genetics Group, Institute of Molecular and Clinical Ophthalmology BaselJul 24, 2023Clinical significance based on ACMG v2.0 -
Stargardt disease 4 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMSep 01, 2010- -
Macular dystrophy Pathogenic:1
Pathogenic, no assertion criteria providedresearchDepartment of Clinical Genetics, Copenhagen University Hospital, RigshospitaletApr 01, 2018- -
Cone-rod dystrophy 12 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMSep 01, 2010- -
Stargardt disease Pathogenic:1
Pathogenic, no assertion criteria providedresearchDepartment of Clinical Genetics, Copenhagen University Hospital, RigshospitaletApr 01, 2018- -
Retinitis pigmentosa Pathogenic:1
Pathogenic, criteria provided, single submittercurationBroad Center for Mendelian Genomics, Broad Institute of MIT and HarvardApr 01, 2021The p.Arg373Cys variant in PROM1 was identified in an individual with Retinitis pigmentosa, via a collaborative study between the Broad Institute's Center for Mendelian Genomics and the Pierce lab (https://oculargenomics.meei.harvard.edu/labs/pierce-lab/lab-members/). Through a review of available evidence we were able to apply the following criteria: PM2, PP3, PS3, PP1-S. Based on this evidence we have classified this variant as Pathogenic. If you have any questions about the classification please reach out to the Pierce Lab. -
Stargardt disease 4;C2675210:Cone-rod dystrophy 12;C2677516:Retinitis pigmentosa 41;C4749334:Retinal macular dystrophy type 2 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMay 18, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.037
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
13
DANN
Benign
0.92
DEOGEN2
Uncertain
0.75
D;.;.;.;.;D
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.042
N
LIST_S2
Benign
0.82
T;T;T;.;T;.
M_CAP
Benign
0.011
T
MetaRNN
Pathogenic
0.98
D;D;D;D;D;D
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;N;N;.;.;N
MutationTaster
Benign
1.6e-10
A;A;A;A;A;A;A
PrimateAI
Benign
0.29
T
PROVEAN
Uncertain
-2.7
D;D;D;D;D;D
REVEL
Benign
0.28
Sift
Uncertain
0.0020
D;D;D;D;D;D
Sift4G
Uncertain
0.0060
D;D;D;D;D;D
Polyphen
0.94
P;P;P;P;P;P
Vest4
0.66
MutPred
0.82
Loss of MoRF binding (P = 0.0109);Loss of MoRF binding (P = 0.0109);Loss of MoRF binding (P = 0.0109);.;.;Loss of MoRF binding (P = 0.0109);
MVP
0.56
MPC
0.018
ClinPred
0.18
T
GERP RS
-0.57
Varity_R
0.22
gMVP
0.33

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs137853006; hg19: chr4-16014922; COSMIC: COSV101477144; API