NM_000492.3(CFTR):c.1521_1523del (p.Phe508del) AND not provided
- Germline classification:
- Pathogenic (20 submissions)
- Last evaluated:
- Aug 1, 2024
- Review status:
- 2 stars out of maximum of 4 starscriteria provided, multiple submitters, no conflicts
- Somatic classification
of clinical impact: - None
- Review status:
- (0/4) 0 stars out of maximum of 4 starsno assertion criteria provided
- Somatic classification
of oncogenicity: - None
- Review status:
- (0/4) 0 stars out of maximum of 4 starsno assertion criteria provided
- Record status:
- current
- Accession:
- RCV000058929.82
Allele description [Variation Report for NM_000492.3(CFTR):c.1521_1523del (p.Phe508del)]
NM_000492.3(CFTR):c.1521_1523del (p.Phe508del)
- Genes:
- CFTR:CF transmembrane conductance regulator [Gene - OMIM - HGNC]
CFTR-AS1:CFTR antisense RNA 1 [Gene - HGNC] - Variant type:
- Deletion
- Cytogenetic location:
- 7q31.2
- Genomic location:
- Preferred name:
- NM_000492.3(CFTR):c.1521_1523del (p.Phe508del)
- Other names:
- F508del; deltaF508; F508delF; DF508; Phe508del; DeltaF508; [delta]F508
- HGVS:
- NC_000007.13:g.117199645_117199647del
- NC_000007.14:g.117559592_117559594del
- NG_016465.4:g.98809_98811del
- NM_000492.4:c.1521_1523delMANE SELECT
- NP_000483.3:p.Phe508del
- NP_000483.3:p.Phe508del
- LRG_663t1:c.1521_1523del
- LRG_663:g.98809_98811del
- LRG_663p1:p.Phe508del
- NC_000007.13:g.117199645_117199647del
- NC_000007.13:g.117199646_117199648del
- NC_000007.13:g.117199646_117199648del
- NC_000007.13:g.117199646_117199648delCTT
- NC_000007.14:g.117559592_117559594del
- NC_000007.14:g.117559592_117559594delCTT
- NG_016465.1:g.84630_84632delCTT
- NM_000492.3:c.1520_1522del
- NM_000492.3:c.1520_1522delTCT
- NM_000492.3:c.1521_1523del
- NM_000492.3:c.1521_1523delCTT
- NM_000492.4:c.1520_1522delMANE SELECT
- NM_000492.4:c.1520_1522delTCTMANE SELECT
- NM_000492.4:c.1521_1523delCTTMANE SELECT
This HGVS expression did not pass validation- Protein change:
- PHE508DEL
- Links:
- PharmGKB Clinical Annotation: 981755820; OMIM: 602421.0001; dbSNP: rs113993960
- NCBI 1000 Genomes Browser:
- rs113993960
- Molecular consequence:
- NM_000492.4:c.1521_1523del - inframe_deletion - [Sequence Ontology: SO:0001822]
- Functional consequence:
- loss_of_function_variant [Sequence Ontology: SO:0002054]
- Observations:
- 633
Condition(s)
- Synonyms:
- none provided; RECLASSIFIED - ADRA2C POLYMORPHISM; RECLASSIFIED - ADRB1 POLYMORPHISM
- Identifiers:
- MedGen: C3661900
Assertion and evidence details
Summary from all submissions
Ethnicity | Origin | Affected | Individuals | Families | Chromosomes tested | Number Tested | Family history | Method |
---|---|---|---|---|---|---|---|---|
not provided | unknown | no | not provided | not provided | not provided | not provided | not provided | clinical testing |
not provided | germline | yes | 105 | not provided | not provided | not provided | not provided | clinical testing |
not provided | germline | unknown | 528 | not provided | not provided | not provided | not provided | clinical testing |
not provided | unknown | yes | not provided | not provided | not provided | not provided | not provided | clinical testing |
not provided | germline | not provided | not provided | not provided | not provided | not provided | not provided | clinical testing, literature only |
not provided | unknown | unknown | not provided | not provided | not provided | not provided | not provided | clinical testing |
Citations
PubMed
Sosnay PR, Salinas DB, White TB, Ren CL, Farrell PM, Raraigh KS, Girodon E, Castellani C.
J Pediatr. 2017 Feb;181S:S27-S32.e1. doi: 10.1016/j.jpeds.2016.09.063.
- PMID:
- 28129809
∆F508 CFTR interactome remodelling promotes rescue of cystic fibrosis.
Pankow S, Bamberger C, Calzolari D, Martínez-Bartolomé S, Lavallée-Adam M, Balch WE, Yates JR 3rd.
Nature. 2015 Dec 24;528(7583):510-6. doi: 10.1038/nature15729. Epub 2015 Nov 30.
- PMID:
- 26618866
- PMCID:
- PMC4826614
Details of each submission
From SNPedia, SCV000090450.1
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | not provided | not provided |
# | 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 GeneDx, SCV000329246.6
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | not provided |
Description
The c.1521_1523delCTT pathogenic variant in the CFTR gene (also known as p.Phe508del or delta F508) is the most common variant identified in the CFTR gene, with up to 90% of individuals with cystic fibrosis (CF) having at least one copy of the c.1521_1523delCTT variant (Cai et al., 2011). The c.1521_1523delCTT variant results in an in-frame deletion of a single Phenylalanine residue at codon 508. Individuals who are homozygous for the c.1521_1523delCTT variant demonstrate the classic features of CF, whereas individuals compound heterozygous for the c.1521_1523delCTT variant and another CFTR variant may have a modified disease phenotype (Ong et al., 2017). Heterozygous carriers of the c.1521_1523delCTT variant are usually asymptomatic, however, may be at increased risk for developing a CFTR-related disorder, as an increased prevalence of single CFTR pathogenic variants has been observed among individuals with chronic pulmonary conditions, CAVD and pancreatitis (Cuppens et al., 2004; Bombieri et al., 2011). We interpret the c.1521_1523delCTT variant as a pathogenic variant.
# | 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 Eurofins Ntd Llc (ga), SCV000330918.4
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | 210 | 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 | 210 | not provided | not provided | not provided |
From Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics, SCV000511517.1
# | 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 | not provided | not provided | not provided | not provided | not provided | 0.01539 | not provided | not provided |
From Quest Diagnostics Nichols Institute San Juan Capistrano, SCV000889288.4
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | PubMed (161) |
Description
The c.1521_1523del (p.Phe508del or Delta F508) pathogenic variant is an in-frame deletion of the phenylalanine amino acid at position p.508 of the CFTR protein. It is the most common cystic fibrosis pathogenic variant that accounts for approximately 70% of alleles in affected patients and causes a severe phenotype due to deleterious effects on CFTR protein maturation and function (PMID: 23857699 (2013), 23974870 (2013), 25148434 (2014), and 26581802 (2016)). Based on the available information, this variant is classified as pathogenic.
# | 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 Blueprint Genetics, SCV000928113.1
# | 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 CeGaT Center for Human Genetics Tuebingen, SCV001246813.26
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | 73 | not provided | not provided | clinical testing | not provided |
Description
CFTR: PM3:Very Strong, PS3:Moderate, PM2:Supporting, PM4:Supporting
# | 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 | 73 | not provided | not provided | not provided |
From Genomic Research Center, Shahid Beheshti University of Medical Sciences, SCV001251746.1
# | 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 | unknown | no | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
From Clinical Genetics and Genomics, Karolinska University Hospital, SCV001450105.1
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | 27 | 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 | yes | not provided | not provided | not provided | 27 | not provided | not provided | not provided |
From Department of Pathology and Laboratory Medicine, Sinai Health System - The Canadian Open Genetics Repository (COGR), SCV001553614.1
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | not provided |
Description
The CFTR p.F508del variant is the most common variant known to cause cystic fibrosis (CF); this variant acounts for ~70% of CFTR variants and is present in approximately 85% of CF patients worldwide (Maiuri_2015_PMID:26046070). The variant was identified in dbSNP (ID: rs113993960) and ClinVar (classified as pathogenic by the American College of Medical Genetics and Genomics, Laboratory for Molecular Medicine and 20+ other laboratories). The variant was identified in control databases in 2027 of 282630 chromosomes (1 homozygous) at a frequency of 0.007172 (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: European (non-Finnish) in 1598 of 129034 chromosomes (freq: 0.01238), Other in 49 of 7214 chromosomes (freq: 0.006792), Ashkenazi Jewish in 58 of 10368 chromosomes (freq: 0.005594), Latino in 135 of 35426 chromosomes (freq: 0.003811), African in 65 of 24958 chromosomes (freq: 0.002604), European (Finnish) in 61 of 25074 chromosomes (freq: 0.002433) and South Asian in 61 of 30608 chromosomes (freq: 0.001993), but was not observed in the East Asian population. This variant is an in-frame deletion resulting in the removal of a phenylalanine (F) residue at codon 508; the deletion of p.F508 results in a misfolded mutant protein that is prematurely degraded before it reaches the plasma membrane (Maiuri_2015_PMID:26046070). In summary, based on the above information this variant meets our laboratory’s criteria to be classified as pathogenic.
# | 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 | not provided | not provided | not provided | not provided |
From Mayo Clinic Laboratories, Mayo Clinic, SCV001713417.3
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | 318 | 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 | 318 | not provided | not provided | not provided |
From Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen - VKGL Data-share Consensus, SCV001744105.3
# | 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 Genome Diagnostics Laboratory, University Medical Center Utrecht - VKGL Data-share Consensus, SCV001929598.1
# | 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 Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden, SCV002009133.3
# | 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 | not provided | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
From Revvity Omics, Revvity, SCV002019253.3
# | 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 Genome Diagnostics Laboratory, Amsterdam University Medical Center - VKGL Data-share Consensus, SCV002035293.1
# | 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 ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories, SCV002048630.7
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | not provided |
Description
The CFTR c.1521_1523del; p.Phe508del (F508del) variant is the most common pathogenic CFTR variant that has been reported in Caucasians (Sosnay 2013, CFTR2 database). This variant is considered to cause cystic fibrosis when identified with another pathogenic variant on the opposite chromosome. REFERENCES CFTR2 database: http://cftr2.org/ Sosnay P et al. Defining the disease liability of variants in the cystic fibrosis transmembrane conductance regulator gene. Nat Genet. 2013;45(10):1160-7. PMID: 23974870.
# | 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 AiLife Diagnostics, AiLife Diagnostics, SCV002502414.1
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | 5 | not provided | not provided | clinical testing | PubMed (41) |
# | 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 | 5 | not provided | not provided | not provided |
From Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital, SCV004242533.2
# | 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 | unknown | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
From Clinical Genetics Laboratory, Skane University Hospital Lund, SCV005197698.1
# | 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 | yes | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
Last Updated: Dec 7, 2024