dbSNP rs34297805: SGSH:p.Met394Ile (chr17-80210779-C-A) – ACMG Classification: Benign (-18 pts)

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBS1BS2

The NM_000199.5(SGSH):c.1182G>T(p.Met394Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00248 in 1,614,028 control chromosomes in the GnomAD database, including 83 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.013 ( 40 hom., cov: 33)

Exomes 𝑓: 0.0014 ( 43 hom. )

Consequence

SGSH
NM_000199.5 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 4.02

Publications

4 publications found

Variant links:

Genes affected

SGSH (HGNC:10818): (N-sulfoglucosamine sulfohydrolase) This gene encodes the enzyme sulfamidase; one of several enzymes involved in the lysosomal degradation of heparan sulfate. Mutations in this gene are associated with the lysosomal storage disease mucopolysaccaridosis IIIA, also known as Sanfilippo syndrome A, which results from impaired degradation of heparan sulfate. Transcripts of varying sizes have been reported but their biological validity has not been determined. [provided by RefSeq, Jun 2017]

SGSH links:

CARD14 (HGNC:16446): (caspase recruitment domain family member 14) This gene encodes a caspase recruitment domain-containing protein that is a member of the membrane-associated guanylate kinase (MAGUK) family of proteins. Members of this protein family are scaffold proteins that are involved in a diverse array of cellular processes including cellular adhesion, signal transduction and cell polarity control. This protein has been shown to specifically interact with BCL10, a protein known to function as a positive regulator of cell apoptosis and NF-kappaB activation. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Apr 2012]

CARD14 Gene-Disease associations (from GenCC):

familial pityriasis rubra pilaris
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, G2P
psoriasis 2
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P

CARD14 links:

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_000199.5, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

PM1

In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 11 uncertain in NM_000199.5

BP4

Computational evidence support a benign effect (MetaRNN=0.009365678).

BP6

Variant 17-80210779-C-A is Benign according to our data. Variant chr17-80210779-C-A is described in ClinVar as Benign. ClinVar VariationId is 255514.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0127 (1939/152274) while in subpopulation AFR AF = 0.0435 (1807/41534). AF 95% confidence interval is 0.0418. There are 40 homozygotes in GnomAd4. There are 893 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 40 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000199.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SGSH	NM_000199.5	MANE Select	c.1182G>T	p.Met394Ile	missense	Exon 8 of 8	NP_000190.1	P51688
SGSH	NM_001352921.3		c.*269G>T		3_prime_UTR	Exon 8 of 8	NP_001339850.1
SGSH	NM_001352922.2		c.*232G>T		3_prime_UTR	Exon 9 of 9	NP_001339851.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SGSH	ENST00000326317.11	TSL:1 MANE Select	c.1182G>T	p.Met394Ile	missense	Exon 8 of 8	ENSP00000314606.6	P51688
SGSH	ENST00000575282.5	TSL:1	n.4065G>T		non_coding_transcript_exon	Exon 5 of 5
SGSH	ENST00000874335.1		c.1218G>T	p.Met406Ile	missense	Exon 9 of 9	ENSP00000544394.1

Frequencies

GnomAD3 genomes

AF:

0.0127

AC:

1934

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0435

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00668

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.00717

GnomAD2 exomes

AF:

0.00345

AC:

865

AN:

251062

AF XY:

0.00250

show subpopulations

Gnomad AFR exome

AF:

0.0450

Gnomad AMR exome

AF:

0.00289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000176

Gnomad OTH exome

AF:

0.00180

GnomAD4 exome

AF:

0.00141

AC:

2063

AN:

1461754

Hom.:

Cov.:

AF XY:

0.00123

AC XY:

898

AN XY:

727162

show subpopulations

African (AFR)

AF:

0.0470

AC:

1575

AN:

33480

American (AMR)

AF:

0.00342

AC:

153

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000927

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53294

Middle Eastern (MID)

AF:

0.00312

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000102

AC:

113

AN:

1112008

Other (OTH)

AF:

0.00325

AC:

196

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

153

306

458

611

764

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

104

156

208

260

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0127

AC:

1939

AN:

152274

Hom.:

Cov.:

AF XY:

0.0120

AC XY:

893

AN XY:

74444

show subpopulations

African (AFR)

AF:

0.0435

AC:

1807

AN:

41534

American (AMR)

AF:

0.00667

AC:

102

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5184

South Asian (SAS)

AF:

0.000415

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000176

AC:

AN:

68024

Other (OTH)

AF:

0.00710

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

186

278

371

464

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

110

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00455

Hom.:

Bravo

AF:

0.0149

Asia WGS

AF:

0.00375

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Mucopolysaccharidosis, MPS-III-A (3)

not provided (2)

not specified (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.48

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.19

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.97

MetaRNN

Benign

0.0094

MetaSVM

Benign

-0.67

MutationAssessor

Pathogenic

3.0

PhyloP100

4.0

PrimateAI

Uncertain

0.49

PROVEAN

Uncertain

-2.5

REVEL

Uncertain

0.37

Sift

Benign

0.054

Sift4G

Benign

0.13

Varity_R

0.58

gMVP

0.71

Mutation Taster

=47/53

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.13

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over