rs145507075

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005055.5(RAPSN):​c.1126C>T​(p.Arg376Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000505 in 1,565,436 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R376L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

RAPSN
NM_005055.5 missense

Scores

2
8
9

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 4.30

Publications

3 publications found
Variant links:
Genes affected
RAPSN (HGNC:9863): (receptor associated protein of the synapse) This gene encodes a member of a family of proteins that are receptor associated proteins of the synapse. The encoded protein contains a conserved cAMP-dependent protein kinase phosphorylation site, and plays a critical role in clustering and anchoring nicotinic acetylcholine receptors at synaptic sites by linking the receptors to the underlying postsynaptic cytoskeleton, possibly by direct association with actin or spectrin. Mutations in this gene may play a role in postsynaptic congenital myasthenic syndromes. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Apr 2011]
RAPSN Gene-Disease associations (from GenCC):
  • fetal akinesia deformation sequence 2
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • neuromuscular disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: Ambry Genetics
  • congenital myasthenic syndrome 11
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp
  • fetal akinesia deformation sequence 1
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • postsynaptic congenital myasthenic syndrome
    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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.22997537).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAPSNNM_005055.5 linkc.1126C>T p.Arg376Trp missense_variant Exon 7 of 8 ENST00000298854.7 NP_005046.2 Q13702-1A0A0S2Z4F8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RAPSNENST00000298854.7 linkc.1126C>T p.Arg376Trp missense_variant Exon 7 of 8 1 NM_005055.5 ENSP00000298854.2 Q13702-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152074
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000638
AC:
12
AN:
188054
AF XY:
0.0000599
show subpopulations
Gnomad AFR exome
AF:
0.0000846
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000597
Gnomad NFE exome
AF:
0.000128
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000509
AC:
72
AN:
1413242
Hom.:
0
Cov.:
34
AF XY:
0.0000445
AC XY:
31
AN XY:
696808
show subpopulations
African (AFR)
AF:
0.0000610
AC:
2
AN:
32772
American (AMR)
AF:
0.0000254
AC:
1
AN:
39424
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25172
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37706
South Asian (SAS)
AF:
0.0000124
AC:
1
AN:
80634
European-Finnish (FIN)
AF:
0.0000199
AC:
1
AN:
50324
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.0000609
AC:
66
AN:
1083192
Other (OTH)
AF:
0.0000171
AC:
1
AN:
58320
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
Heterozygous variant carriers
0
4
8
12
16
20
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000460
AC:
7
AN:
152194
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74404
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41544
American (AMR)
AF:
0.0000655
AC:
1
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10590
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68004
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000716
Hom.:
0
Bravo
AF:
0.0000529
ExAC
AF:
0.0000841
AC:
10

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Sep 28, 2023
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fetal akinesia deformation sequence 1;C4225367:Congenital myasthenic syndrome 11 Uncertain:1
Oct 29, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 376 of the RAPSN protein (p.Arg376Trp). This variant is present in population databases (rs145507075, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with RAPSN-related conditions. ClinVar contains an entry for this variant (Variation ID: 542735). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt RAPSN protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Congenital myasthenic syndrome Uncertain:1
Nov 11, 2019
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.24
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.10
T;.;.;.
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.45
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Pathogenic
0.98
D;D;D;D
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.23
T;T;T;T
MetaSVM
Uncertain
-0.28
T
MutationAssessor
Benign
1.4
L;.;.;.
PhyloP100
4.3
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-2.2
N;N;.;N
REVEL
Benign
0.21
Sift
Uncertain
0.017
D;D;.;D
Sift4G
Uncertain
0.010
D;D;D;D
Polyphen
1.0
D;D;.;D
Vest4
0.49
MVP
0.86
MPC
0.57
ClinPred
0.23
T
GERP RS
3.9
Varity_R
0.22
gMVP
0.42
Mutation Taster
=46/54
disease causing

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: rs145507075; hg19: chr11-47460323; API