rs777877507

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001543.5(NDST1):c.39C>G(p.His13Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,612,262 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NDST1
NM_001543.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.947

Variant links:

Genes affected

NDST1 (HGNC:7680): (N-deacetylase and N-sulfotransferase 1) This gene encodes a member of the heparan sulfate/heparin GlcNAc N-deacetylase/ N-sulfotransferase family. The encoded enzyme is a type II transmembrane protein that resides in the Golgi apparatus. The encoded protein catalyzes the transfer of sulfate from 3'-phosphoadenosine 5'-phosphosulfate to nitrogen of glucosamine in heparan sulfate. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014]

NDST1 links:

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;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), NDST1. . Gene score misZ 2.9238 (greater than the threshold 3.09). Trascript score misZ 4.3135 (greater than threshold 3.09). GenCC has associacion of gene with autosomal recessive non-syndromic intellectual disability, intellectual disability, autosomal recessive 46.

BP4

Computational evidence support a benign effect (MetaRNN=0.0848898).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NDST1	NM_001543.5 linkuse as main transcript	c.39C>G	p.His13Gln	missense_variant	2/15	ENST00000261797.7	NP_001534.1
NDST1	NM_001301063.2 linkuse as main transcript	c.39C>G	p.His13Gln	missense_variant	2/14		NP_001287992.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NDST1	ENST00000261797.7 linkuse as main transcript	c.39C>G	p.His13Gln	missense_variant	2/15	1	NM_001543.5	ENSP00000261797	P1	P52848-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249422

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135082

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.00000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460124

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726494

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74306

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Aug 14, 2019

Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -

Intellectual disability, autosomal recessive 46

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing;provider interpretation

Geisinger Autism and Developmental Medicine Institute, Geisinger Health System

Oct 11, 2017

This 5-year old male with a history of global developmental delay, hyperkinesis, and mixed receptive-expressive language disorder was found to be compound heterozygous for two variants in the NDST1 gene. This particular variant has been reported in the non-Finnish European population at a frequency of 0.0009%. Computational models are inconsistent. This variant is not in either the heparan sulfate N-deacetylase 1 domain or the sulfotransferase domain. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.078

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

6.8

DANN

Benign

0.73

DEOGEN2

Benign

0.15

.;.;.;.;T

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.36

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.73

T;T;T;T;T

M_CAP

Benign

0.0035

MetaRNN

Benign

0.085

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.69

.;.;.;.;N

MutationTaster

Benign

0.94

N;N

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-5.1

D;N;N;D;N

REVEL

Benign

0.10

Sift

Benign

0.50

T;T;T;.;T

Sift4G

Benign

0.68

T;T;T;D;T

Polyphen

0.0

.;.;B;.;B

Vest4

0.14, 0.098

MutPred

0.30

Gain of solvent accessibility (P = 0.0514);Gain of solvent accessibility (P = 0.0514);Gain of solvent accessibility (P = 0.0514);Gain of solvent accessibility (P = 0.0514);Gain of solvent accessibility (P = 0.0514);

MVP

0.39

MPC

0.66

ClinPred

0.15

GERP RS

3.3

Varity_R

0.029

gMVP

0.21

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over