NM_000268.4(NF2):c.1693A>T (p.Asn565Tyr) AND Neurofibromatosis, type 2

Clinical significance:Uncertain significance (Last evaluated: Aug 12, 2019)

Review status:1 star out of maximum of 4 stars

criteria provided, single submitter

Based on:
1 submission [Details]
Record status:
current
Accession:
RCV000822796.3

Allele description [Variation Report for NM_000268.4(NF2):c.1693A>T (p.Asn565Tyr)]

NM_000268.4(NF2):c.1693A>T (p.Asn565Tyr)

Gene:
NF2:NF2, moesin-ezrin-radixin like (MERLIN) tumor suppressor [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
22q12.2
Genomic location:
Preferred name:
NM_000268.4(NF2):c.1693A>T (p.Asn565Tyr)
HGVS:
  • NC_000022.11:g.29681557A>T
  • NG_009057.1:g.83002A>T
  • NM_000268.4:c.1693A>TMANE SELECT
  • NM_016418.5:c.1693A>T
  • NM_181825.3:c.1693A>T
  • NM_181828.3:c.1567A>T
  • NM_181829.3:c.1570A>T
  • NM_181830.3:c.1444A>T
  • NM_181831.3:c.1444A>T
  • NM_181832.3:c.1693A>T
  • NM_181833.3:c.448-13195A>T
  • NP_000259.1:p.Asn565Tyr
  • NP_000259.1:p.Asn565Tyr
  • NP_057502.2:p.Asn565Tyr
  • NP_861546.1:p.Asn565Tyr
  • NP_861966.1:p.Asn523Tyr
  • NP_861967.1:p.Asn524Tyr
  • NP_861968.1:p.Asn482Tyr
  • NP_861969.1:p.Asn482Tyr
  • NP_861970.1:p.Asn565Tyr
  • LRG_511t1:c.1693A>T
  • LRG_511t2:c.1693A>T
  • LRG_511:g.83002A>T
  • LRG_511p1:p.Asn565Tyr
  • LRG_511p2:p.Asn565Tyr
  • NC_000022.10:g.30077546A>T
  • NM_000268.3:c.1693A>T
  • NR_156186.2:n.2175A>T
Protein change:
N482Y
Links:
dbSNP: rs1601666359
NCBI 1000 Genomes Browser:
rs1601666359
Molecular consequence:
  • NM_181833.3:c.448-13195A>T - intron variant - [Sequence Ontology: SO:0001627]
  • NM_000268.4:c.1693A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_016418.5:c.1693A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181825.3:c.1693A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181828.3:c.1567A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181829.3:c.1570A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181830.3:c.1444A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181831.3:c.1444A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181832.3:c.1693A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NR_156186.2:n.2175A>T - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:
Neurofibromatosis, type 2 (NF2)
Synonyms:
NF 2; Neurofibromatosis central type; Acoustic schwannomas bilateral; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0007039; MedGen: C0027832; Orphanet: 637; OMIM: 101000

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000963613Invitaecriteria provided, single submitter
Uncertain significance
(Aug 12, 2019)
germlineclinical testing

PubMed (1)
[See all records that cite this PMID]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240-242.

PubMed [citation]
PMID:
28492532
PMCID:
PMC5632818

Details of each submission

From Invitae, SCV000963613.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)

Description

This sequence change replaces asparagine with tyrosine at codon 565 of the NF2 protein (p.Asn565Tyr). The asparagine residue is weakly conserved and there is a large physicochemical difference between asparagine and tyrosine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with NF2-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Dec 4, 2021

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