rs529117281

Variant summary

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

The NM_005055.5(RAPSN):​c.1036C>T​(p.Arg346Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000453 in 1,567,862 control chromosomes in the GnomAD database, including 1 homozygotes. 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. R346P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000048 ( 1 hom. )

Consequence

RAPSN
NM_005055.5 missense

Scores

5
12
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 4.03

Publications

0 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.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAPSNNM_005055.5 linkc.1036C>T p.Arg346Trp 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.1036C>T p.Arg346Trp missense_variant Exon 7 of 8 1 NM_005055.5 ENSP00000298854.2 Q13702-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152188
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000135
AC:
24
AN:
177166
AF XY:
0.000191
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:
0.0000137
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000480
AC:
68
AN:
1415556
Hom.:
1
Cov.:
34
AF XY:
0.0000657
AC XY:
46
AN XY:
699628
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32734
American (AMR)
AF:
0.00
AC:
0
AN:
37528
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25280
East Asian (EAS)
AF:
0.0000266
AC:
1
AN:
37554
South Asian (SAS)
AF:
0.000734
AC:
59
AN:
80364
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49998
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5706
European-Non Finnish (NFE)
AF:
0.00000735
AC:
8
AN:
1087752
Other (OTH)
AF:
0.00
AC:
0
AN:
58640
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
4
9
13
18
22
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152306
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74460
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41556
American (AMR)
AF:
0.00
AC:
0
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.442
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:
0.000116
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.000169
AC:
20

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Apr 13, 2022
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 14, 2023
Mayo Clinic Laboratories, Mayo Clinic
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
Jun 22, 2022
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 346 of the RAPSN protein (p.Arg346Trp). This variant is present in population databases (rs529117281, gnomAD 0.1%). 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: 542734). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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
Apr 13, 2020
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
Pathogenic
0.73
BayesDel_addAF
Uncertain
0.054
T
BayesDel_noAF
Pathogenic
0.24
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.57
D;.;.;.
Eigen
Uncertain
0.68
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Uncertain
0.21
D
MetaRNN
Uncertain
0.51
D;D;D;D
MetaSVM
Pathogenic
0.88
D
MutationAssessor
Benign
1.1
L;.;.;.
PhyloP100
4.0
PrimateAI
Uncertain
0.75
T
PROVEAN
Uncertain
-3.2
D;D;.;D
REVEL
Uncertain
0.64
Sift
Uncertain
0.0010
D;D;.;D
Sift4G
Uncertain
0.0040
D;D;D;D
Polyphen
0.99
D;D;.;D
Vest4
0.85
MutPred
0.56
Loss of disorder (P = 0.0206);.;.;.;
MVP
0.99
MPC
0.46
ClinPred
0.27
T
GERP RS
5.9
Varity_R
0.30
gMVP
0.68
Mutation Taster
=36/64
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: rs529117281; hg19: chr11-47460413; API