Genetic Variant NM_005055.5:c.756C>T (chr11-47441856-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_ModerateBP6_ModerateBP7

The NM_005055.5(RAPSN):c.756C>T(p.Phe252Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000121 in 1,592,796 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

RAPSN
NM_005055.5 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.42

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

RAPSN links:

LOC124902673 (HGNC:):

LOC124902673 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.42).

BP6

Variant 11-47441856-G-A is Benign according to our data. Variant chr11-47441856-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 542738.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=2.42 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAPSN	NM_005055.5 link	c.756C>T	p.Phe252Phe	synonymous_variant	Exon 4 of 8	ENST00000298854.7	NP_005046.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAPSN	ENST00000298854.7 link	c.756C>T	p.Phe252Phe	synonymous_variant	Exon 4 of 8	1	NM_005055.5	ENSP00000298854.2

Frequencies

GnomAD3 genomes

AF:

0.0000530

AC:

AN:

150918

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000243

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000317

AC:

AN:

220592

AF XY:

0.0000331

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000309

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000401

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000128

AC:

184

AN:

1441878

Hom.:

Cov.:

AF XY:

0.000128

AC XY:

AN XY:

716142

show subpopulations

African (AFR)

AF:

0.0000300

AC:

AN:

33300

American (AMR)

AF:

0.0000233

AC:

AN:

42906

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25732

East Asian (EAS)

AF:

0.00

AC:

AN:

39166

South Asian (SAS)

AF:

0.0000239

AC:

AN:

83766

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46350

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4152

European-Non Finnish (NFE)

AF:

0.000148

AC:

164

AN:

1106824

Other (OTH)

AF:

0.000268

AC:

AN:

59682

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000530

AC:

AN:

150918

Hom.:

Cov.:

AF XY:

0.0000543

AC XY:

AN XY:

73714

show subpopulations

African (AFR)

AF:

0.0000243

AC:

AN:

41144

American (AMR)

AF:

0.00

AC:

AN:

15172

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3454

East Asian (EAS)

AF:

0.00

AC:

AN:

5048

South Asian (SAS)

AF:

0.00

AC:

AN:

4714

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10364

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.000103

AC:

AN:

67724

Other (OTH)

AF:

0.00

AC:

AN:

2080

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000969

Hom.:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Fetal akinesia deformation sequence 1;C4225367:Congenital myasthenic syndrome 11

Benign:1

Jan 22, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.42

CADD

Benign

(source)

DANN

Benign

0.84

PhyloP100

2.4

Mutation Taster

=95/5

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over