7-117501747-CAAAAAAAAAAAAAAAA-CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Variant names:

• chr7-117501747-C-CAAAAAAAAAAAAAAAAAAAAAAAAAAAA
• rs1212853305
• NM_000492.4:c.54-2482_54-2481insAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_000492.4(CFTR):​c.54-2482_54-2481insAAAAAAAAAAAAAAAAAAAAAAAAAAAA variant causes a intron change involving the alteration of a non-conserved nucleotide. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.00073 (0 hom., cov: 0)
• Consequence: CFTR NM_000492.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.685
• Publications: 0 publications found

Genes affected

CFTR (HGNC:1884): (CF transmembrane conductance regulator) This gene encodes a member of the ATP-binding cassette (ABC) transporter superfamily. The encoded protein functions as a chloride channel, making it unique among members of this protein family, and controls ion and water secretion and absorption in epithelial tissues. Channel activation is mediated by cycles of regulatory domain phosphorylation, ATP-binding by the nucleotide-binding domains, and ATP hydrolysis. Mutations in this gene cause cystic fibrosis, the most common lethal genetic disorder in populations of Northern European descent. The most frequently occurring mutation in cystic fibrosis, DeltaF508, results in impaired folding and trafficking of the encoded protein. Multiple pseudogenes have been identified in the human genome. [provided by RefSeq, Aug 2017]

CFTR Gene-Disease associations (from GenCC):

• cystic fibrosis

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, Laboratory for Molecular Medicine
• congenital bilateral absence of vas deferens

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary chronic pancreatitis

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000492.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CFTR	NM_000492.4	MANE Select	c.54-2482_54-2481insAAAAAAAAAAAAAAAAAAAAAAAAAAAA		intron	N/A	NP_000483.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CFTR	ENST00000003084.11	TSL:1 MANE Select	c.54-2506_54-2505insAAAAAAAAAAAAAAAAAAAAAAAAAAAA		intron	N/A	ENSP00000003084.6	P13569-1
	CFTR	ENST00000546407.1	TSL:1	n.167-2506_167-2505insAAAAAAAAAAAAAAAAAAAAAAAAAAAA		intron	N/A
	CFTR	ENST00000699602.1		c.54-2506_54-2505insAAAAAAAAAAAAAAAAAAAAAAAAAAAA		intron	N/A	ENSP00000514471.1	A0A8V8TNH2

Frequencies

GnomAD3 genomes AF: 0.000729 AC: 32 AN: 43890 Hom.: 0 Cov.: 0

Gnomad AFR AF: 0.000538

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000932

Gnomad ASJ AF: 0.00316

Gnomad EAS AF: 0.00129

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000713

Gnomad OTH AF: 0.00202

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.000729 AC: 32 AN: 43894 Hom.: 0 Cov.: 0 AF XY: 0.000813 AC XY: 16 AN XY: 19674

African (AFR) AF: 0.000537 AC: 8 AN: 14888

American (AMR) AF: 0.000933 AC: 3 AN: 3214

Ashkenazi Jewish (ASJ) AF: 0.00316 AC: 3 AN: 948

East Asian (EAS) AF: 0.00129 AC: 2 AN: 1554

South Asian (SAS) AF: 0.00 AC: 0 AN: 1038

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 508

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 30

European-Non Finnish (NFE) AF: 0.000713 AC: 15 AN: 21024

Other (OTH) AF: 0.00201 AC: 1 AN: 498

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.69

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1212853305; hg19: chr7-117141801;