chr4-118254749-G-T

Variant names:

• chr4-118254749-G-T
• rs631271
• NM_004784.3:c.2503-844G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_004784.3(NDST3):​c.2503-844G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 151,912 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.000013 (0 hom., cov: 32)
• Consequence: NDST3 NM_004784.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.869
• Publications: 10 publications found

Genes affected

NDST3 (HGNC:7682): (N-deacetylase and N-sulfotransferase 3) 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. This monomeric bifunctional enzyme catalyzes the N-deacetylation and N-sulfation of N-acetylglucosamine residues in heparan sulfate and heparin, which are the initial chemical modifications required for the biosynthesis of the functional oligosaccharide sequences that define the specific ligand binding activities of heparan sulfate and heparin. [provided by RefSeq, Nov 2008]

ENSG00000297398 (HGNC:58877):

LOC105377392 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004784.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NDST3	NM_004784.3	MANE Select	c.2503-844G>T		intron	N/A	NP_004775.1	O95803-1
	NDST3	NR_146513.2		n.3204-844G>T		intron	N/A
	NDST3	NR_146514.2		n.2721-844G>T		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NDST3	ENST00000296499.6	TSL:1 MANE Select	c.2503-844G>T		intron	N/A	ENSP00000296499.5	O95803-1
	NDST3	ENST00000852871.1		c.2503-844G>T		intron	N/A	ENSP00000522930.1
	ENSG00000297398	ENST00000747715.1		n.164-3062C>A		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 151912 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000483

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: 0.00

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 151912 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74164

African (AFR) AF: 0.0000483 AC: 2 AN: 41370

American (AMR) AF: 0.00 AC: 0 AN: 15256

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10530

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67952

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 18032

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	2.0
DANN	Benign	0.31
PhyloP100		0.87

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: rs631271; hg19: chr4-119175904;