chr17-17227930-C-T

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_144997.7(FLCN):​c.208G>A​(p.Glu70Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,614,124 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E70Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

FLCN
NM_144997.7 missense

Scores

7
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: 5.17

Publications

1 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: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.16834393).
BP6
Variant 17-17227930-C-T is Benign according to our data. Variant chr17-17227930-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 409409.
BS2
High AC in GnomAdExome4 at 14 AD gene.

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.208G>Ap.Glu70Lys
missense
Exon 4 of 14NP_659434.2
FLCN
NM_001353229.2
c.208G>Ap.Glu70Lys
missense
Exon 5 of 16NP_001340158.1
FLCN
NM_001353230.2
c.208G>Ap.Glu70Lys
missense
Exon 5 of 15NP_001340159.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FLCN
ENST00000285071.9
TSL:1 MANE Select
c.208G>Ap.Glu70Lys
missense
Exon 4 of 14ENSP00000285071.4
FLCN
ENST00000389169.9
TSL:1
c.208G>Ap.Glu70Lys
missense
Exon 4 of 8ENSP00000373821.5
ENSG00000264187
ENST00000427497.3
TSL:1
n.148+60G>A
intron
N/AENSP00000394249.3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152228
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000199
AC:
5
AN:
251206
AF XY:
0.0000295
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461778
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727190
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000812
AC:
7
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53308
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000629
AC:
7
AN:
1112010
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.0000197
AC:
3
AN:
152346
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74504
show subpopulations
African (AFR)
AF:
0.0000240
AC:
1
AN:
41580
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Birt-Hogg-Dube syndrome (1)
-
-
1
Birt-Hogg-Dube syndrome 1 (1)
-
-
1
Hereditary cancer-predisposing syndrome (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.099
T
BayesDel_noAF
Benign
-0.12
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.17
T
Eigen
Benign
-0.10
Eigen_PC
Benign
0.075
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.17
T
MetaSVM
Uncertain
0.025
D
MutationAssessor
Benign
0.0
N
PhyloP100
5.2
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-0.76
N
REVEL
Uncertain
0.37
Sift
Benign
0.50
T
Sift4G
Benign
0.90
T
Polyphen
0.0010
B
Vest4
0.20
MutPred
0.25
Gain of ubiquitination at E70 (P = 9e-04)
MVP
0.30
MPC
0.43
ClinPred
0.12
T
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.13
gMVP
0.18
Mutation Taster
=86/14
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs554247745; hg19: chr17-17131244; COSMIC: COSV99550166; COSMIC: COSV99550166; API