Variant chr17-42537436-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_000263.4(NAGLU):c.422C>T(p.Ser141Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 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. S141T) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NAGLU
NM_000263.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 7.53

Variant links:

Genes affected

NAGLU (HGNC:7632): (N-acetyl-alpha-glucosaminidase) This gene encodes an enzyme that degrades heparan sulfate by hydrolysis of terminal N-acetyl-D-glucosamine residues in N-acetyl-alpha-D-glucosaminides. Defects in this gene are the cause of mucopolysaccharidosis type IIIB (MPS-IIIB), also known as Sanfilippo syndrome B. This disease is characterized by the lysosomal accumulation and urinary excretion of heparan sulfate. [provided by RefSeq, Jul 2008]

NAGLU links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.983

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
NAGLU	NM_000263.4 linkuse as main transcript	c.422C>T	p.Ser141Phe	missense_variant	2/6	ENST00000225927.7	NP_000254.2
NAGLU	XM_024450771.2 linkuse as main transcript	c.479C>T	p.Ser160Phe	missense_variant	3/7		XP_024306539.1
NAGLU	XM_047436138.1 linkuse as main transcript	c.-79+781C>T		intron_variant			XP_047292094.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
NAGLU	ENST00000225927.7 linkuse as main transcript	c.422C>T	p.Ser141Phe	missense_variant	2/6	1	NM_000263.4	ENSP00000225927	P1
NAGLU	ENST00000590358.1 linkuse as main transcript	c.110C>T	p.Ser37Phe	missense_variant	1/2	4		ENSP00000466892
NAGLU	ENST00000586516.5 linkuse as main transcript	c.133+781C>T		intron_variant		2		ENSP00000467135
NAGLU	ENST00000591587.1 linkuse as main transcript	c.126+781C>T		intron_variant		5		ENSP00000467836

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727232

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Mucopolysaccharidosis, MPS-III-B

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Counsyl

Mar 05, 2018

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

May 10, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.96

BayesDel_addAF

Pathogenic

0.58

BayesDel_noAF

Pathogenic

0.60

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.99

D;D

Eigen

Pathogenic

0.89

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.97

D;D

M_CAP

Pathogenic

0.69

MetaRNN

Pathogenic

0.98

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

3.5

M;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.70

PROVEAN

Pathogenic

-5.3

D;.

REVEL

Pathogenic

0.98

Sift

Pathogenic

0.0

D;.

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;.

Vest4

0.99

MutPred

0.88

Loss of MoRF binding (P = 0.0876);.;

MVP

0.99

MPC

1.2

ClinPred

1.0

GERP RS

4.4

Varity_R

0.98

gMVP

0.98

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