NM_005055.5:c.196G>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_005055.5(RAPSN):​c.196G>T​(p.Ala66Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000683 in 1,610,688 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A66T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

RAPSN
NM_005055.5 missense

Scores

1
4
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.51

Publications

1 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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAPSNNM_005055.5 linkc.196G>T p.Ala66Ser missense_variant Exon 2 of 8 ENST00000298854.7 NP_005046.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RAPSNENST00000298854.7 linkc.196G>T p.Ala66Ser missense_variant Exon 2 of 8 1 NM_005055.5 ENSP00000298854.2
RAPSNENST00000352508.7 linkc.196G>T p.Ala66Ser missense_variant Exon 2 of 6 1 ENSP00000298853.3
RAPSNENST00000529341.1 linkc.196G>T p.Ala66Ser missense_variant Exon 2 of 5 1 ENSP00000431732.1
RAPSNENST00000524487.5 linkc.196G>T p.Ala66Ser missense_variant Exon 2 of 7 5 ENSP00000435551.2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152116
Hom.:
0
Cov.:
32
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
246408
AF XY:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000617
AC:
9
AN:
1458572
Hom.:
0
Cov.:
36
AF XY:
0.00000827
AC XY:
6
AN XY:
725670
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50196
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111956
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152116
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74304
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41404
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Uncertain
0.036
T
BayesDel_noAF
Benign
-0.19
CADD
Benign
22
DANN
Benign
0.92
DEOGEN2
Benign
0.089
T;.;.;.
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.31
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.81
T;T;T;T
M_CAP
Benign
0.085
D
MetaRNN
Uncertain
0.50
T;T;T;T
MetaSVM
Benign
-0.53
T
MutationAssessor
Benign
1.6
L;L;.;.
PhyloP100
5.5
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-0.62
N;N;N;N
REVEL
Uncertain
0.39
Sift
Benign
0.32
T;T;T;T
Sift4G
Benign
0.66
T;T;T;T
Polyphen
0.69
P;B;.;B
Vest4
0.56
MutPred
0.75
Loss of ubiquitination at K64 (P = 0.1351);Loss of ubiquitination at K64 (P = 0.1351);Loss of ubiquitination at K64 (P = 0.1351);Loss of ubiquitination at K64 (P = 0.1351);
MVP
0.73
MPC
0.28
ClinPred
0.45
T
GERP RS
3.8
Varity_R
0.10
gMVP
0.33
Mutation Taster
=75/25
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.33
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.33
Position offset: -12

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs145197671; hg19: chr11-47469699; API