17-42543627-C-A
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Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_ModerateBP6_ModerateBP7
The NM_000263.4(NAGLU):c.1621C>A(p.Arg541=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,460,698 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )
Consequence
NAGLU
NM_000263.4 synonymous
NM_000263.4 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 1.29
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant 17-42543627-C-A is Benign according to our data. Variant chr17-42543627-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 1080744.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=1.29 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
NAGLU | NM_000263.4 | c.1621C>A | p.Arg541= | synonymous_variant | 6/6 | ENST00000225927.7 | NP_000254.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
NAGLU | ENST00000225927.7 | c.1621C>A | p.Arg541= | synonymous_variant | 6/6 | 1 | NM_000263.4 | ENSP00000225927 | P1 | |
NAGLU | ENST00000591587.1 | c.*590C>A | 3_prime_UTR_variant | 4/4 | 5 | ENSP00000467836 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
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33
GnomAD3 exomes AF: 0.00000809 AC: 2AN: 247170Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 134542
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GnomAD4 exome AF: 0.00000616 AC: 9AN: 1460698Hom.: 0 Cov.: 32 AF XY: 0.00000963 AC XY: 7AN XY: 726660
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GnomAD4 genome Cov.: 33
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ClinVar
Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Mucopolysaccharidosis, MPS-III-B;C5569050:Charcot-Marie-Tooth disease axonal type 2V Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Nov 03, 2023 | - - |
Computational scores
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Name
Calibrated prediction
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at