17-17216483-G-C

Variant names:

• chr17-17216483-G-C
• rs750894316
• NM_144997.7:c.1197C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_144997.7(FLCN):​c.1197C>G​(p.Cys399Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. C399C) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: FLCN NM_144997.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0220
• Publications: 0 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: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.921

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	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLCN	NM_144997.7	MANE Select	c.1197C>G	p.Cys399Trp	missense	Exon 11 of 14	NP_659434.2
	FLCN	NM_001353229.2		c.1251C>G	p.Cys417Trp	missense	Exon 13 of 16	NP_001340158.1
	FLCN	NM_001353230.2		c.1197C>G	p.Cys399Trp	missense	Exon 12 of 15	NP_001340159.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLCN	ENST00000285071.9	TSL:1 MANE Select	c.1197C>G	p.Cys399Trp	missense	Exon 11 of 14	ENSP00000285071.4
	ENSG00000264187	ENST00000427497.3	TSL:1	n.*31C>G		non_coding_transcript_exon	Exon 7 of 12	ENSP00000394249.3
	ENSG00000264187	ENST00000427497.3	TSL:1	n.*31C>G		3_prime_UTR	Exon 7 of 12	ENSP00000394249.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.44	D
BayesDel_noAF	Pathogenic	0.40
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.94	D
Eigen	Benign	-0.093
Eigen_PC	Benign	-0.24
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.87	D
M_CAP	Pathogenic	0.90	D
MetaRNN	Pathogenic	0.92	D
MetaSVM	Pathogenic	0.80	D
MutationAssessor	Benign	1.8	L
PhyloP100		-0.022
PrimateAI	Uncertain	0.66	T
PROVEAN	Pathogenic	-7.7	D
REVEL	Pathogenic	0.80
Sift	Uncertain	0.0020	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.92
MutPred		0.57		Gain of MoRF binding (P = 0.0941)
MVP		0.85
MPC		1.4
ClinPred		0.99	D
GERP RS		-2.2
Varity_R		0.95
gMVP		0.92

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs750894316; hg19: chr17-17119797;