NM_000268.4(NF2):c.1252C>T (p.Arg418Cys) AND Hereditary cancer-predisposing syndrome

Clinical significance:Uncertain significance (Last evaluated: Dec 28, 2018)

Review status:1 star out of maximum of 4 stars

criteria provided, single submitter

Based on:
1 submission [Details]
Record status:

Allele description [Variation Report for NM_000268.4(NF2):c.1252C>T (p.Arg418Cys)]

NM_000268.4(NF2):c.1252C>T (p.Arg418Cys)

NF2:NF2, moesin-ezrin-radixin like (MERLIN) tumor suppressor [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
Genomic location:
Preferred name:
NM_000268.4(NF2):c.1252C>T (p.Arg418Cys)
  • NC_000022.11:g.29673398C>T
  • NG_009057.1:g.74843C>T
  • NM_000268.3:c.1252C>T
  • NM_000268.4:c.1252C>TMANE SELECT
  • NM_016418.5:c.1252C>T
  • NM_181825.3:c.1252C>T
  • NM_181828.3:c.1126C>T
  • NM_181829.3:c.1129C>T
  • NM_181830.3:c.1003C>T
  • NM_181831.3:c.1003C>T
  • NM_181832.3:c.1252C>T
  • NM_181833.3:c.448-21354C>T
  • NP_000259.1:p.Arg418Cys
  • NP_000259.1:p.Arg418Cys
  • NP_057502.2:p.Arg418Cys
  • NP_861546.1:p.Arg418Cys
  • NP_861966.1:p.Arg376Cys
  • NP_861967.1:p.Arg377Cys
  • NP_861968.1:p.Arg335Cys
  • NP_861969.1:p.Arg335Cys
  • NP_861970.1:p.Arg418Cys
  • LRG_511t1:c.1252C>T
  • LRG_511t2:c.1252C>T
  • LRG_511:g.74843C>T
  • LRG_511p1:p.Arg418Cys
  • LRG_511p2:p.Arg418Cys
  • NC_000022.10:g.30069387C>T
  • NR_156186.2:n.1734C>T
Protein change:
dbSNP: rs765540111
NCBI 1000 Genomes Browser:
Molecular consequence:
  • NM_181833.3:c.448-21354C>T - intron variant - [Sequence Ontology: SO:0001627]
  • NM_000268.3:c.1252C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_000268.4:c.1252C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_016418.5:c.1252C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181825.3:c.1252C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181828.3:c.1126C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181829.3:c.1129C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181830.3:c.1003C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181831.3:c.1003C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181832.3:c.1252C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NR_156186.2:n.1734C>T - non-coding transcript variant - [Sequence Ontology: SO:0001619]


Hereditary cancer-predisposing syndrome
Neoplastic Syndromes, Hereditary; Tumor predisposition; Cancer predisposition; See all synonyms [MedGen]
MONDO: MONDO:0015356; MedGen: C0027672

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
SCV001170769Ambry Geneticscriteria provided, single submitter
Uncertain significance
(Dec 28, 2018)
germlineclinical testing

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

Citation Link

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknown1not providednot provided1not providedclinical testing



Exon scanning for mutation of the NF2 gene in schwannomas.

Jacoby LB, MacCollin M, Louis DN, Mohney T, Rubio MP, Pulaski K, Trofatter JA, Kley N, Seizinger B, Ramesh V, et al.

Hum Mol Genet. 1994 Mar;3(3):413-9.

PubMed [citation]

Details of each submission

From Ambry Genetics, SCV001170769.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided1not providednot providedclinical testing PubMed (1)


The p.R418C variant (also known as c.1252C>T), located in coding exon 12 of the NF2 gene, results from a C to T substitution at nucleotide position 1252. The arginine at codon 418 is replaced by cysteine, an amino acid with highly dissimilar properties. This alteration was reported in the germline in one individual with sporadic vestibular schwannoma who did not have a clinical diagnosis of NF2 and was not observed in 150 healthy controls (Jacoby LB et al. Hum. Mol. Genet., 1994 Mar;3:413-9). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknown1not providednot provided1not providednot providednot provided

Last Updated: Oct 30, 2021

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