rs104894867

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1PM2PM5PP2

The NM_000266.4(NDP):​c.269G>T​(p.Arg90Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000183 in 1,093,621 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R90H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )

Consequence

NDP
NM_000266.4 missense

Scores

2
11
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.70

Publications

4 publications found
Variant links:
Genes affected
NDP (HGNC:7678): (norrin cystine knot growth factor NDP) This gene encodes a secreted protein with a cystein-knot motif that activates the Wnt/beta-catenin pathway. The protein forms disulfide-linked oligomers in the extracellular matrix. Mutations in this gene result in Norrie disease and X-linked exudative vitreoretinopathy. [provided by RefSeq, Feb 2009]
NDP-AS1 (HGNC:40395): (NDP antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM1
In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_000266.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chrX-43949933-G-A is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 373948.Status of the report is criteria_provided_single_submitter, 1 stars.
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 32 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Trascript score misZ: NaN (below the threshold of 3.09). GenCC associations: The gene is linked to Norrie disease, exudative vitreoretinopathy 2, X-linked, exudative vitreoretinopathy, persistent hyperplastic primary vitreous.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000266.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NDP
NM_000266.4
MANE Select
c.269G>Tp.Arg90Leu
missense
Exon 3 of 3NP_000257.1
NDP-AS1
NR_046631.1
n.201C>A
non_coding_transcript_exon
Exon 1 of 6

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NDP
ENST00000642620.1
MANE Select
c.269G>Tp.Arg90Leu
missense
Exon 3 of 3ENSP00000495972.1
NDP
ENST00000647044.1
c.269G>Tp.Arg90Leu
missense
Exon 4 of 4ENSP00000495811.1
NDP-AS1
ENST00000435093.1
TSL:3
n.201C>A
non_coding_transcript_exon
Exon 1 of 5

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD2 exomes
AF:
0.0000118
AC:
2
AN:
169831
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000138
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000183
AC:
2
AN:
1093621
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
359719
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26322
American (AMR)
AF:
0.00
AC:
0
AN:
34846
Ashkenazi Jewish (ASJ)
AF:
0.0000519
AC:
1
AN:
19283
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30005
South Asian (SAS)
AF:
0.0000188
AC:
1
AN:
53056
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40169
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4111
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
839911
Other (OTH)
AF:
0.00
AC:
0
AN:
45918
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
23
ExAC
AF:
0.00000825
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Uncertain
0.067
T
BayesDel_noAF
Uncertain
0.030
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.83
D
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.93
D
M_CAP
Pathogenic
0.77
D
MetaRNN
Uncertain
0.58
D
MetaSVM
Uncertain
0.27
D
MutationAssessor
Benign
0.55
N
PhyloP100
3.7
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-2.1
N
REVEL
Uncertain
0.53
Sift
Uncertain
0.0070
D
Sift4G
Uncertain
0.036
D
Polyphen
0.96
D
Vest4
0.60
MutPred
0.34
Loss of MoRF binding (P = 0.0089)
MVP
0.95
MPC
1.6
ClinPred
0.55
D
GERP RS
6.0
Varity_R
0.73
gMVP
0.96
Mutation Taster
=15/85
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs104894867; hg19: chrX-43809178; API