X-43949796-G-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_000266.4(NDP):​c.*3C>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000737 in 1,166,550 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 22 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000045 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.000077 ( 0 hom. 21 hem. )

Consequence

NDP
NM_000266.4 3_prime_UTR

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 1.19
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 made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BS2
High Hemizygotes in GnomAdExome4 at 21 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NDPNM_000266.4 linkc.*3C>A 3_prime_UTR_variant 3/3 ENST00000642620.1 NP_000257.1 Q00604
NDP-AS1NR_046631.1 linkn.65G>T non_coding_transcript_exon_variant 1/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NDPENST00000642620 linkc.*3C>A 3_prime_UTR_variant 3/3 NM_000266.4 ENSP00000495972.1 Q00604
NDPENST00000647044 linkc.*3C>A 3_prime_UTR_variant 4/4 ENSP00000495811.1 Q00604
NDP-AS1ENST00000435093.1 linkn.65G>T non_coding_transcript_exon_variant 1/53
NDPENST00000470584.1 linkn.449C>A non_coding_transcript_exon_variant 3/32

Frequencies

GnomAD3 genomes
AF:
0.0000446
AC:
5
AN:
112169
Hom.:
0
Cov.:
23
AF XY:
0.0000291
AC XY:
1
AN XY:
34329
show subpopulations
Gnomad AFR
AF:
0.0000649
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000563
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000830
AC:
10
AN:
120499
Hom.:
0
AF XY:
0.0000731
AC XY:
3
AN XY:
41047
show subpopulations
Gnomad AFR exome
AF:
0.000128
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000188
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000768
AC:
81
AN:
1054381
Hom.:
0
Cov.:
29
AF XY:
0.0000614
AC XY:
21
AN XY:
342281
show subpopulations
Gnomad4 AFR exome
AF:
0.0000398
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:
0.0000790
Gnomad4 NFE exome
AF:
0.0000880
Gnomad4 OTH exome
AF:
0.000112
GnomAD4 genome
AF:
0.0000446
AC:
5
AN:
112169
Hom.:
0
Cov.:
23
AF XY:
0.0000291
AC XY:
1
AN XY:
34329
show subpopulations
Gnomad4 AFR
AF:
0.0000649
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000563
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000285
Hom.:
1
Bravo
AF:
0.000151

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAthena DiagnosticsMar 05, 2019- -
NDP-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 07, 2024This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
6.3
DANN
Benign
0.79

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: rs372300274; hg19: chrX-43809042; API