NM_001543.5:c.101C>G

Variant names:

• chr5-150521355-C-G
• rs1264818846
• NM_001543.5:c.101C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001543.5(NDST1):​c.101C>G​(p.Ser34Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S34L) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NDST1 NM_001543.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.90
• Publications: 1 publications found

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 Gene-Disease associations (from GenCC):

• intellectual disability, autosomal recessive 46

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• autosomal recessive non-syndromic intellectual disability

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001543.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NDST1	NM_001543.5	MANE Select	c.101C>G	p.Ser34Trp	missense	Exon 2 of 15	NP_001534.1
	NDST1	NM_001301063.2		c.101C>G	p.Ser34Trp	missense	Exon 2 of 14	NP_001287992.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NDST1	ENST00000261797.7	TSL:1 MANE Select	c.101C>G	p.Ser34Trp	missense	Exon 2 of 15	ENSP00000261797.6
	NDST1	ENST00000523767.5	TSL:2	c.101C>G	p.Ser34Trp	missense	Exon 2 of 14	ENSP00000428604.1
	NDST1	ENST00000519157.1	TSL:5	c.101C>G	p.Ser34Trp	missense	Exon 2 of 2	ENSP00000427813.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

May 01, 2017

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.78
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.030
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.38	T
Eigen	Uncertain	0.66
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Benign	0.051	D
MetaRNN	Uncertain	0.58	D
MetaSVM	Benign	-0.46	T
MutationAssessor	Uncertain	2.5	M
PhyloP100		2.9
PrimateAI	Uncertain	0.78	T
PROVEAN	Pathogenic	-7.0	D
REVEL	Uncertain	0.32
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.76
MutPred		0.55		Loss of sheet (P = 0.0315)
MVP		0.63
MPC		2.0
ClinPred		0.99	D
GERP RS		5.2
Varity_R		0.21
gMVP		0.77
Mutation Taster		=42/58	disease causing

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

Other links and lift over

dbSNP: rs1264818846; hg19: chr5-149900917;