rs104893984

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_000434.4(NEU1):​c.87G>C​(p.Trp29Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NEU1
NM_000434.4 missense

Scores

1
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.859

Publications

3 publications found
Variant links:
Genes affected
NEU1 (HGNC:7758): (neuraminidase 1) The protein encoded by this gene is a lysosomal enzyme that cleaves terminal sialic acid residues from substrates such as glycoproteins and glycolipids. In the lysosome, this enzyme is part of a heterotrimeric complex together with beta-galactosidase and cathepsin A (the latter is also referred to as 'protective protein'). Mutations in this gene can lead to sialidosis, a lysosomal storage disease that can be type 1 (cherry red spot-myoclonus syndrome or normosomatic type), which is late-onset, or type 2 (the dysmorphic type), which occurs at an earlier age with increased severity. [provided by RefSeq, Jul 2008]
NEU1 Gene-Disease associations (from GenCC):
  • sialidosis
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • sialidosis type 2
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • congenital sialidosis type 2
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • juvenile sialidosis type 2
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • sialidosis type 1
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 24 curated pathogenic missense variants (we use a threshold of 10). The gene has 5 curated benign missense variants. Gene score misZ: 1.4218 (below the threshold of 3.09). Trascript score misZ: 2.2638 (below the threshold of 3.09). GenCC associations: The gene is linked to sialidosis, sialidosis type 2, congenital sialidosis type 2, sialidosis type 1, juvenile sialidosis type 2.
BP4
Computational evidence support a benign effect (MetaRNN=0.18637884).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEU1NM_000434.4 linkc.87G>C p.Trp29Cys missense_variant Exon 1 of 6 ENST00000375631.5 NP_000425.1 Q99519Q5JQI0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NEU1ENST00000375631.5 linkc.87G>C p.Trp29Cys missense_variant Exon 1 of 6 1 NM_000434.4 ENSP00000364782.4 Q99519

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000816
AC:
2
AN:
245108
AF XY:
0.00000747
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000184
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460764
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726696
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52308
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1112006
Other (OTH)
AF:
0.00
AC:
0
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000169
AC:
2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.055
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
16
DANN
Benign
0.65
DEOGEN2
Benign
0.26
T
Eigen
Benign
-0.95
Eigen_PC
Benign
-0.92
FATHMM_MKL
Uncertain
0.93
D
M_CAP
Benign
0.056
D
MetaRNN
Benign
0.19
T
MetaSVM
Benign
-0.70
T
MutationAssessor
Benign
0.0
N
PhyloP100
0.86
PrimateAI
Benign
0.22
T
PROVEAN
Benign
-0.16
N
REVEL
Benign
0.22
Sift
Benign
0.045
D
Sift4G
Benign
0.078
T
Polyphen
0.18
B
Vest4
0.31
MutPred
0.54
Loss of MoRF binding (P = 0.0141);
MVP
0.75
MPC
0.88
ClinPred
0.065
T
GERP RS
3.6
PromoterAI
0.015
Neutral
RBP_binding_hub_radar
1.0
RBP_regulation_power_radar
2.1
Varity_R
0.17
gMVP
0.76
Mutation Taster
=96/4
polymorphism

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

Publications

Other links and lift over

dbSNP: rs104893984; hg19: chr6-31830467; API