rs57878668

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_005055.5(RAPSN):ā€‹c.241T>Cā€‹(p.Phe81Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00569 in 1,613,790 control chromosomes in the GnomAD database, including 131 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.017 ( 47 hom., cov: 32)
Exomes š‘“: 0.0045 ( 84 hom. )

Consequence

RAPSN
NM_005055.5 missense

Scores

2
1
15

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 6.92
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.006080568).
BP6
Variant 11-47448102-A-G is Benign according to our data. Variant chr11-47448102-A-G is described in ClinVar as [Benign]. Clinvar id is 235304.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-47448102-A-G is described in Lovd as [Likely_benign]. Variant chr11-47448102-A-G is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0173 (2625/152168) while in subpopulation AFR AF= 0.0481 (1996/41500). AF 95% confidence interval is 0.0463. There are 47 homozygotes in gnomad4. There are 1290 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 47 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RAPSNNM_005055.5 linkuse as main transcriptc.241T>C p.Phe81Leu missense_variant 2/8 ENST00000298854.7 NP_005046.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RAPSNENST00000298854.7 linkuse as main transcriptc.241T>C p.Phe81Leu missense_variant 2/81 NM_005055.5 ENSP00000298854 P1Q13702-1
RAPSNENST00000352508.7 linkuse as main transcriptc.241T>C p.Phe81Leu missense_variant 2/61 ENSP00000298853 Q13702-2
RAPSNENST00000529341.1 linkuse as main transcriptc.241T>C p.Phe81Leu missense_variant 2/51 ENSP00000431732
RAPSNENST00000524487.5 linkuse as main transcriptc.241T>C p.Phe81Leu missense_variant 2/75 ENSP00000435551

Frequencies

GnomAD3 genomes
AF:
0.0172
AC:
2621
AN:
152050
Hom.:
46
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0481
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00511
Gnomad ASJ
AF:
0.00375
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.0149
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.00518
Gnomad OTH
AF:
0.0106
GnomAD3 exomes
AF:
0.00786
AC:
1969
AN:
250414
Hom.:
32
AF XY:
0.00686
AC XY:
929
AN XY:
135476
show subpopulations
Gnomad AFR exome
AF:
0.0499
Gnomad AMR exome
AF:
0.00382
Gnomad ASJ exome
AF:
0.00268
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000719
Gnomad FIN exome
AF:
0.0133
Gnomad NFE exome
AF:
0.00575
Gnomad OTH exome
AF:
0.00670
GnomAD4 exome
AF:
0.00448
AC:
6552
AN:
1461622
Hom.:
84
Cov.:
36
AF XY:
0.00437
AC XY:
3179
AN XY:
727126
show subpopulations
Gnomad4 AFR exome
AF:
0.0491
Gnomad4 AMR exome
AF:
0.00396
Gnomad4 ASJ exome
AF:
0.00310
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000719
Gnomad4 FIN exome
AF:
0.0128
Gnomad4 NFE exome
AF:
0.00311
Gnomad4 OTH exome
AF:
0.00651
GnomAD4 genome
AF:
0.0173
AC:
2625
AN:
152168
Hom.:
47
Cov.:
32
AF XY:
0.0173
AC XY:
1290
AN XY:
74390
show subpopulations
Gnomad4 AFR
AF:
0.0481
Gnomad4 AMR
AF:
0.00510
Gnomad4 ASJ
AF:
0.00375
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.0149
Gnomad4 NFE
AF:
0.00518
Gnomad4 OTH
AF:
0.0104
Alfa
AF:
0.00691
Hom.:
27
Bravo
AF:
0.0173
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00182
AC:
7
ESP6500AA
AF:
0.0518
AC:
228
ESP6500EA
AF:
0.00407
AC:
35
ExAC
AF:
0.00912
AC:
1107
Asia WGS
AF:
0.00144
AC:
6
AN:
3478
EpiCase
AF:
0.00474
EpiControl
AF:
0.00379

ClinVar

Significance: Benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsMay 11, 2017- -
Benign, criteria provided, single submitterclinical testingGeneDxNov 30, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
not provided Benign:2
Benign, criteria provided, single submitterclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsJan 06, 2016- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Fetal akinesia deformation sequence 1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Fetal akinesia deformation sequence 1;C4225367:Congenital myasthenic syndrome 11 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Congenital myasthenic syndrome Benign:1
Benign, no assertion criteria providedclinical testingNatera, Inc.Jan 13, 2021- -
Congenital myasthenic syndrome 11 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.58
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
19
DANN
Benign
0.97
DEOGEN2
Benign
0.046
T;.;.;.
Eigen
Benign
-0.19
Eigen_PC
Benign
0.015
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.81
T;T;T;T
MetaRNN
Benign
0.0061
T;T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
0.69
N;N;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-0.47
N;N;N;N
REVEL
Benign
0.072
Sift
Benign
0.48
T;T;T;T
Sift4G
Benign
0.51
T;T;T;T
Polyphen
0.0030
B;B;.;B
Vest4
0.24
MutPred
0.14
Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);
MVP
0.78
MPC
0.18
ClinPred
0.015
T
GERP RS
4.8
Varity_R
0.16
gMVP
0.37

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs57878668; hg19: chr11-47469654; API