NM_001042492.3(NF1):c.2022C>T (p.Ser674=) AND not specified

Germline classification:: Benign (6 submissions)
Last evaluated:: May 3, 2018
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000218285.21

Allele description [Variation Report for NM_001042492.3(NF1):c.2022C>T (p.Ser674=)]

NM_001042492.3(NF1):c.2022C>T (p.Ser674=)

Gene:

NF1:neurofibromin 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

17q11.2

Genomic location:

Preferred name:

NM_001042492.3(NF1):c.2022C>T (p.Ser674=)

HGVS:

NC_000017.11:g.31226455C>T
NG_009018.1:g.136479C>T
NM_000267.3:c.2022C>T
NM_001042492.3:c.2022C>TMANE SELECT
NP_000258.1:p.Ser674=
NP_001035957.1:p.Ser674=
NP_001035957.1:p.Ser674=
LRG_214t1:c.2022C>T
LRG_214t2:c.2022C>T
LRG_214:g.136479C>T
LRG_214p1:p.Ser674=
LRG_214p2:p.Ser674=
NC_000017.10:g.29553473C>T
NM_001042492.2:c.2022C>T
NM_001042492.3:c.2022C>T
p.S674S
p.Ser674Ser

Links:

dbSNP: rs2230851

NCBI 1000 Genomes Browser:

rs2230851

Molecular consequence:

NM_000267.3:c.2022C>T - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001042492.3:c.2022C>T - synonymous variant - [Sequence Ontology: SO:0001819]

Observations:

Condition(s)

Synonyms:: AllHighlyPenetrant
Identifiers:: MedGen: CN169374

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000269448	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	criteria provided, single submitter (LMM Criteria)	Benign (Nov 24, 2014)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000306244	PreventionGenetics, part of Exact Sciences	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000595970	Genetic Services Laboratory, University of Chicago	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign (May 3, 2018)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000919870	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	criteria provided, single submitter (LabCorp Variant Classification Summary - May 2015)	Benign (Oct 23, 2017)	germline	clinical testing	Citation Link,
SCV001809337	Genome Diagnostics Laboratory, Amsterdam University Medical Center - VKGL Data-share Consensus	no assertion criteria provided	Benign	germline	clinical testing
SCV001972698	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Benign	germline	clinical testing

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	yes	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	no	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	not provided	2	2	not provided	not provided	not provided	clinical testing
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

A systematic approach to assessing the clinical significance of genetic variants.

Duzkale H, Shen J, McLaughlin H, Alfares A, Kelly MA, Pugh TJ, Funke BH, Rehm HL, Lebo MS.

Clin Genet. 2013 Nov;84(5):453-63. doi: 10.1111/cge.12257.

PubMed [citation]

PMID:: 24033266
PMCID:: PMC3995020

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine, SCV000269448.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	2	not provided	not provided	clinical testing	PubMed (1)

Description

Ser674Ser in exon 18 of NF1: This variant is not expected to have clinical signi ficance because it does not alter an amino acid residue and is not located withi n the splice consensus sequence. It has been identified in 2.6% (113/4406) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs2230851).

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	not provided	not provided	not provided	not provided		2	not provided	2	not provided

From PreventionGenetics, part of Exact Sciences, SCV000306244.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Genetic Services Laboratory, University of Chicago, SCV000595970.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	no	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Women's Health and Genetics/Laboratory Corporation of America, LabCorp, SCV000919870.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

Variant summary: The NF1 c.2022C>T (p.Ser674Ser) variant involves the alteration of a non-conserved nucleotide, resulting in a synonymous change. Mutation taster predicts a damaging outcome for this variant. 5/5 splice prediction tools predict no significant impact on normal splicing. ESE finder predicts that this variant may affect binding of ESE sites. However, these predictions have yet to be confirmed by functional studies. This variant was found in 757/250454 control chromosomes (gnomAD) at a frequency of 0.0030225, which is approximately 15 times the estimated maximal expected allele frequency of a pathogenic NF1 variant (0.0002084), suggesting this variant is likely a benign polymorphism. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as benign/likely benign. Taken together, this variant is classified as benign.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Genome Diagnostics Laboratory, Amsterdam University Medical Center - VKGL Data-share Consensus, SCV001809337.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center - VKGL Data-share Consensus, SCV001972698.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Mar 10, 2024

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