NM_000492.4(CFTR):c.650A>G (p.Glu217Gly) AND Cystic fibrosis

Germline classification:: Conflicting interpretations of pathogenicity (8 submissions)
Last evaluated:: Feb 1, 2024
Review status:: criteria provided, conflicting classifications

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:: RCV000007660.34

Allele description [Variation Report for NM_000492.4(CFTR):c.650A>G (p.Glu217Gly)]

NM_000492.4(CFTR):c.650A>G (p.Glu217Gly)

Gene:

CFTR:CF transmembrane conductance regulator [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

7q31.2

Genomic location:

Preferred name:

NM_000492.4(CFTR):c.650A>G (p.Glu217Gly)

HGVS:

NC_000007.14:g.117535318A>G
NG_016465.4:g.74535A>G
NM_000492.4:c.650A>GMANE SELECT
NP_000483.3:p.Glu217Gly
NP_000483.3:p.Glu217Gly
LRG_663t1:c.650A>G
LRG_663:g.74535A>G
LRG_663p1:p.Glu217Gly
NC_000007.13:g.117175372A>G
NM_000492.3:c.650A>G

Protein change:

E217G; GLU217GLY

Links:

OMIM: 602421.0134; dbSNP: rs121909046

NCBI 1000 Genomes Browser:

rs121909046

Molecular consequence:

NM_000492.4:c.650A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Cystic fibrosis (CF)
Synonyms:: Mucoviscidosis
Identifiers:: MONDO: MONDO:0009061; MedGen: C0010674; Orphanet: 586; OMIM: 219700

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000027861	OMIM	no assertion criteria provided	Pathogenic (Sep 15, 2003)	germline	literature only	PubMed (1) [See all records that cite this PMID]
SCV000267252	Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Mar 18, 2016)	germline	reference population	PubMed (3) [See all records that cite these PMIDs] 21520337, 22483971, 25741868
SCV000562306	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Benign (Feb 1, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001137468	Mendelics	criteria provided, single submitter (Mendelics Assertion Criteria 2017)	Uncertain significance (May 28, 2019)	unknown	clinical testing	Citation Link,
SCV001187527	Ambry Genetics	criteria provided, single submitter (Ambry Variant Classification Scheme 2023)	Benign (Mar 2, 2018)	germline	clinical testing	PubMed (1) [See all records that cite this PMID] Citation Link,
SCV001453952	Natera, Inc.	no assertion criteria provided	Uncertain significance (Jun 13, 2017)	germline	clinical testing
SCV001737307	Genome-Nilou Lab	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Jun 10, 2021)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV002573926	Institute of Human Genetics, University of Leipzig Medical Center	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Sep 5, 2022)	unknown	curation	PubMed (1) [See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	not provided	not provided	not provided	not provided	not provided	not provided	literature only
not provided	unknown	yes	2	not provided	not provided	not provided	not provided	curation
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	unknown	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
East Asian	germline	unknown	1	not provided	not provided	not provided	not provided	reference population

Citations

PubMed

A haplotype-based molecular analysis of CFTR mutations associated with respiratory and pancreatic diseases.

Lee JH, Choi JH, Namkung W, Hanrahan JW, Chang J, Song SY, Park SW, Kim DS, Yoon JH, Suh Y, Jang IJ, Nam JH, Kim SJ, Cho MO, Lee JE, Kim KH, Lee MG.

Hum Mol Genet. 2003 Sep 15;12(18):2321-32.

PubMed [citation]

PMID:: 12952861

Common CFTR haplotypes and susceptibility to chronic pancreatitis and congenital bilateral absence of the vas deferens.

Steiner B, Rosendahl J, Witt H, Teich N, Keim V, Schulz HU, Pfützer R, Löhr M, Gress TM, Nickel R, Landt O, Koudova M, Macek M Jr, Farre A, Casals T, Desax MC, Gallati S, Gomez-Lira M, Audrezet MP, Férec C, des Georges M, Claustres M, et al.

Hum Mutat. 2011 Aug;32(8):912-20. doi: 10.1002/humu.21511. Epub 2011 Jun 7. Erratum in: Hum Mutat. 2012 Feb;33(2):456. Lühr, Matthias [corrected to Löhr, Matthias].

PubMed [citation]

PMID:: 21520337

See all PubMed Citations (6)

Details of each submission

From OMIM, SCV000027861.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	literature only	PubMed (1)

Description

In a patient with cystic fibrosis (CF; 219700), Lee et al. (2003) identified a 782A-G transition in exon 6a of the CFTR gene that resulted in a glu217-to-gly (E217G) amino acid substitution.

#	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		not provided	not provided	not provided	not provided

From Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center, SCV000267252.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	East Asian	1	not provided	not provided	reference population	PubMed (3)

#	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		1	not provided	not provided	not provided

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000562306.8

#	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 Mendelics, SCV001137468.1

#	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	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Ambry Genetics, SCV001187527.4

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

Description

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

#	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 Natera, Inc., SCV001453952.1

#	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	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Genome-Nilou Lab, SCV001737307.1

#	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	no	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Institute of Human Genetics, University of Leipzig Medical Center, SCV002573926.1

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

Description

This variant was identified in 2 unrelated patients with a clinically confirmed diagnosis of cystic fibrosis. The variant was classified in the context of a project re-classifying variants in the German Cystic Fibrosis Registry (Muko.e.V.). Link: https://www.muko.info/angebote/qualitaetsmanagement/register/cf-einrichtungen/mukoweb. Criteria applied: PS3_MOD, PM3, BS2, BP2

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

Last Updated: Nov 3, 2024

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