rs1209487287

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM4PP3BS2

The NM_144997.7(FLCN):​c.727_735del​(p.Leu244_Ser246del) variant causes a inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (β˜…β˜…). Synonymous variant affecting the same amino acid position (i.e. S243S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

FLCN
NM_144997.7 inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 8.99
Variant links:
Genes affected
FLCN (HGNC:27310): (folliculin) This gene is located within the Smith-Magenis syndrome region on chromosome 17. Mutations in this gene are associated with Birt-Hogg-Dube syndrome, which is characterized by fibrofolliculomas, renal tumors, lung cysts, and pneumothorax. Alternative splicing of this gene results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM4
Nonframeshift variant in NON repetitive region in NM_144997.7.
PP3
No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
BS2
High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FLCNNM_144997.7 linkuse as main transcriptc.727_735del p.Leu244_Ser246del inframe_deletion 7/14 ENST00000285071.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FLCNENST00000285071.9 linkuse as main transcriptc.727_735del p.Leu244_Ser246del inframe_deletion 7/141 NM_144997.7 P1Q8NFG4-1
FLCNENST00000389169.9 linkuse as main transcriptc.727_735del p.Leu244_Ser246del inframe_deletion 7/81 Q8NFG4-2
FLCNENST00000466317.1 linkuse as main transcriptn.570_578del non_coding_transcript_exon_variant 1/22
FLCNENST00000480316.1 linkuse as main transcriptn.693_701del non_coding_transcript_exon_variant 2/32

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251406
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135914
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461888
Hom.:
0
AF XY:
0.00000550
AC XY:
4
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Birt-Hogg-Dube syndrome;C0346629:Colorectal cancer;C1868193:Familial spontaneous pneumothorax;C2931246:Potocki-Lupski syndrome;CN074294:Nonpapillary renal cell carcinoma Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJul 11, 2021- -
Birt-Hogg-Dube syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 21, 2024This variant, c.727_735del, results in the deletion of 3 amino acid(s) of the FLCN protein (p.Leu244_Ser246del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (no rsID available, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with FLCN-related conditions. ClinVar contains an entry for this variant (Variation ID: 529984). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1209487287; hg19: chr17-17125858; API