rs386833401

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS2_Supporting

The NM_144997.7(FLCN):​c.97G>T​(p.Asp33Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D33E) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

FLCN
NM_144997.7 missense

Scores

1
6
11

Clinical Significance

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

Conservation

PhyloP100: 5.57

Publications

0 publications found
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]
FLCN Gene-Disease associations (from GenCC):
  • Birt-Hogg-Dube syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet, ClinGen
  • Birt-Hogg-Dube syndrome 1
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P, Ambry Genetics
  • familial spontaneous pneumothorax
    Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, Ambry Genetics
  • renal carcinoma
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • colorectal cancer
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.24203545).
BS2
High AC in GnomAdExome4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_144997.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FLCN
NM_144997.7
MANE Select
c.97G>Tp.Asp33Tyr
missense
Exon 4 of 14NP_659434.2
FLCN
NM_001353229.2
c.97G>Tp.Asp33Tyr
missense
Exon 5 of 16NP_001340158.1
FLCN
NM_001353230.2
c.97G>Tp.Asp33Tyr
missense
Exon 5 of 15NP_001340159.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FLCN
ENST00000285071.9
TSL:1 MANE Select
c.97G>Tp.Asp33Tyr
missense
Exon 4 of 14ENSP00000285071.4
FLCN
ENST00000389169.9
TSL:1
c.97G>Tp.Asp33Tyr
missense
Exon 4 of 8ENSP00000373821.5
ENSG00000264187
ENST00000427497.3
TSL:1
n.97G>T
non_coding_transcript_exon
Exon 4 of 12ENSP00000394249.3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152276
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461532
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727068
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53066
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1112008
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152276
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74398
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41476
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68054
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000565
Hom.:
0

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Birt-Hogg-Dube syndrome (1)
-
1
-
Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.091
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Benign
-0.090
CADD
Benign
23
DANN
Benign
0.91
DEOGEN2
Benign
0.13
T
Eigen
Benign
0.045
Eigen_PC
Uncertain
0.22
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.24
T
MetaSVM
Uncertain
0.36
D
MutationAssessor
Benign
-0.69
N
PhyloP100
5.6
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-0.11
N
REVEL
Uncertain
0.46
Sift
Benign
0.078
T
Sift4G
Uncertain
0.053
T
Polyphen
0.015
B
Vest4
0.24
MutPred
0.30
Gain of phosphorylation at D33 (P = 0.0146)
MVP
0.33
MPC
0.46
ClinPred
0.86
D
GERP RS
5.5
Varity_R
0.094
gMVP
0.35

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs386833401; hg19: chr17-17131355; COSMIC: COSV105838325; API