17-80217231-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000199.5(SGSH):​c.89-39G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0498 in 1,577,028 control chromosomes in the GnomAD database, including 4,337 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.11 ( 1758 hom., cov: 33)
Exomes 𝑓: 0.044 ( 2579 hom. )

Consequence

SGSH
NM_000199.5 intron

Scores

2
Splicing: ADA: 0.0002776
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.196
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 17-80217231-C-T is Benign according to our data. Variant chr17-80217231-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 255520.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.276 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SGSHNM_000199.5 linkuse as main transcriptc.89-39G>A intron_variant ENST00000326317.11 NP_000190.1 P51688

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SGSHENST00000326317.11 linkuse as main transcriptc.89-39G>A intron_variant 1 NM_000199.5 ENSP00000314606.6 P51688

Frequencies

GnomAD3 genomes
AF:
0.107
AC:
16250
AN:
152132
Hom.:
1755
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.280
Gnomad AMI
AF:
0.0186
Gnomad AMR
AF:
0.0522
Gnomad ASJ
AF:
0.0594
Gnomad EAS
AF:
0.0198
Gnomad SAS
AF:
0.0511
Gnomad FIN
AF:
0.0678
Gnomad MID
AF:
0.114
Gnomad NFE
AF:
0.0347
Gnomad OTH
AF:
0.0888
GnomAD3 exomes
AF:
0.0593
AC:
11534
AN:
194566
Hom.:
725
AF XY:
0.0563
AC XY:
5901
AN XY:
104900
show subpopulations
Gnomad AFR exome
AF:
0.293
Gnomad AMR exome
AF:
0.0358
Gnomad ASJ exome
AF:
0.0618
Gnomad EAS exome
AF:
0.0185
Gnomad SAS exome
AF:
0.0587
Gnomad FIN exome
AF:
0.0634
Gnomad NFE exome
AF:
0.0394
Gnomad OTH exome
AF:
0.0515
GnomAD4 exome
AF:
0.0437
AC:
62226
AN:
1424778
Hom.:
2579
Cov.:
31
AF XY:
0.0435
AC XY:
30714
AN XY:
706492
show subpopulations
Gnomad4 AFR exome
AF:
0.294
Gnomad4 AMR exome
AF:
0.0381
Gnomad4 ASJ exome
AF:
0.0612
Gnomad4 EAS exome
AF:
0.0224
Gnomad4 SAS exome
AF:
0.0587
Gnomad4 FIN exome
AF:
0.0631
Gnomad4 NFE exome
AF:
0.0338
Gnomad4 OTH exome
AF:
0.0578
GnomAD4 genome
AF:
0.107
AC:
16283
AN:
152250
Hom.:
1758
Cov.:
33
AF XY:
0.106
AC XY:
7915
AN XY:
74464
show subpopulations
Gnomad4 AFR
AF:
0.280
Gnomad4 AMR
AF:
0.0521
Gnomad4 ASJ
AF:
0.0594
Gnomad4 EAS
AF:
0.0199
Gnomad4 SAS
AF:
0.0509
Gnomad4 FIN
AF:
0.0678
Gnomad4 NFE
AF:
0.0347
Gnomad4 OTH
AF:
0.0893
Alfa
AF:
0.0874
Hom.:
251
Bravo
AF:
0.114
Asia WGS
AF:
0.0540
AC:
187
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJul 05, 2018- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Mucopolysaccharidosis, MPS-III-A Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabNov 07, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
10
DANN
Benign
0.81

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00028
dbscSNV1_RF
Benign
0.17
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs9900502; hg19: chr17-78191030; API