NM_000268.4(NF2):c.922A>G (p.Met308Val) AND Neurofibromatosis, type 2

Clinical significance:Uncertain significance (Last evaluated: Jul 23, 2020)

Review status:1 star out of maximum of 4 stars

criteria provided, single submitter

Based on:
1 submission [Details]
Record status:
current
Accession:
RCV001346791.1

Allele description [Variation Report for NM_000268.4(NF2):c.922A>G (p.Met308Val)]

NM_000268.4(NF2):c.922A>G (p.Met308Val)

Gene:
NF2:neurofibromin 2 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
22q12.2
Genomic location:
Preferred name:
NM_000268.4(NF2):c.922A>G (p.Met308Val)
HGVS:
  • NC_000022.11:g.29668369A>G
  • NG_009057.1:g.69814A>G
  • NM_000268.4:c.922A>GMANE SELECT
  • NM_016418.5:c.922A>G
  • NM_181825.3:c.922A>G
  • NM_181828.3:c.796A>G
  • NM_181829.3:c.799A>G
  • NM_181830.3:c.673A>G
  • NM_181831.3:c.673A>G
  • NM_181832.3:c.922A>G
  • NM_181833.3:c.447+26084A>G
  • NP_000259.1:p.Met308Val
  • NP_057502.2:p.Met308Val
  • NP_861546.1:p.Met308Val
  • NP_861966.1:p.Met266Val
  • NP_861967.1:p.Met267Val
  • NP_861968.1:p.Met225Val
  • NP_861969.1:p.Met225Val
  • NP_861970.1:p.Met308Val
  • LRG_511t2:c.922A>G
  • LRG_511:g.69814A>G
  • LRG_511p2:p.Met308Val
  • NC_000022.10:g.30064358A>G
  • NR_156186.2:n.1404A>G
Protein change:
M225V
Molecular consequence:
  • NM_181833.3:c.447+26084A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_000268.4:c.922A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_016418.5:c.922A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181825.3:c.922A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181828.3:c.796A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181829.3:c.799A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181830.3:c.673A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181831.3:c.673A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181832.3:c.922A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NR_156186.2:n.1404A>G - 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
SCV001541017Invitaecriteria provided, single submitter
Uncertain significance
(Jul 23, 2020)
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, SCV001541017.1

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

Description

This sequence change replaces methionine with valine at codon 308 of the NF2 protein (p.Met308Val). The methionine residue is highly conserved and there is a small physicochemical difference between methionine and valine. 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 conditions. 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: Benign; Align-GVGD: Class C0). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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: Mar 28, 2021

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