rs781733528

Variant names:

• chr17-17213692-G-A
• rs781733528
• NM_144997.7:c.1703C>T

Your query was ambiguous. Multiple possible variants found:

• chr17-17213692-G-A
• chr17-17213692-G-C
• chr17-17213692-G-T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_144997.7(FLCN):​c.1703C>T​(p.Thr568Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,878 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. T568A) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: FLCN NM_144997.7 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:5
• Conservation: PhyloP100: 7.70
• Publications: 3 publications found

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]

ENSG00000264187 (HGNC:):

MPRIP (HGNC:30321): (myosin phosphatase Rho interacting protein) Enables cadherin binding activity. Predicted to be involved in actin filament organization. Located in actin cytoskeleton and cytosol. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.24676847).
• BS2: High AC in GnomAdExome4 at 8 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLCN	NM_144997.7	MANE Select	c.1703C>T	p.Thr568Met	missense	Exon 14 of 14	NP_659434.2
	FLCN	NM_001353229.2		c.1757C>T	p.Thr586Met	missense	Exon 16 of 16	NP_001340158.1
	FLCN	NM_001353230.2		c.1703C>T	p.Thr568Met	missense	Exon 15 of 15	NP_001340159.1	Q8NFG4-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLCN	ENST00000285071.9	TSL:1 MANE Select	c.1703C>T	p.Thr568Met	missense	Exon 14 of 14	ENSP00000285071.4	Q8NFG4-1
	ENSG00000264187	ENST00000427497.3	TSL:1	n.*372+1293C>T		intron	N/A	ENSP00000394249.3	J3QW42
	FLCN	ENST00000962729.1		c.1808C>T	p.Thr603Met	missense	Exon 16 of 16	ENSP00000632788.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251492 AF XY: 0.00000736

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: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461878 Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3 AN XY: 727234

African (AFR) AF: 0.0000896 AC: 3 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86244

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1112012

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	Birt-Hogg-Dube syndrome (2)
-	1	-	Colorectal cancer;C1868193:Familial spontaneous pneumothorax;CN074294:Nonpapillary renal cell carcinoma;CN375946:Birt-Hogg-Dube syndrome 1 (1)
-	1	-	Hereditary cancer-predisposing syndrome (1)
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Uncertain	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.30	T
Eigen	Benign	0.013
Eigen_PC	Benign	0.16
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.92	D
M_CAP	Uncertain	0.12	D
MetaRNN	Benign	0.25	T
MetaSVM	Uncertain	0.022	D
MutationAssessor	Benign	0.0	N
PhyloP100		7.7
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-0.95	N
REVEL	Uncertain	0.44
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0080	D
Polyphen		0.52	P
Vest4		0.43
MutPred		0.23		Loss of glycosylation at T568 (P = 0.0185)
MVP		0.37
MPC		0.42
ClinPred		0.70	D
GERP RS		4.7
Varity_R		0.18
gMVP		0.34
Mutation Taster		=94/6	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

Other links and lift over

dbSNP: rs781733528; hg19: chr17-17117006; COSMIC: COSV53257125; COSMIC: COSV53257125;