rs121917706

Variant names:

• chr11-69818917-A-G
• rs121917706
• NM_005247.4:c.17T>C

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_005247.4(FGF3):​c.17T>C​(p.Leu6Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: FGF3 NM_005247.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1 O:1
• Conservation: PhyloP100: 3.85
• Publications: 7 publications found

Genes affected

FGF3 (HGNC:3681): (fibroblast growth factor 3) The protein encoded by this gene is a member of the fibroblast growth factor (FGF) family. FGF family members possess broad mitogenic and cell survival activities and are involved in a variety of biological processes including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. This gene was identified by its similarity with mouse fgf3/int-2, a proto-oncogene activated in virally induced mammary tumors in the mouse. Frequent amplification of this gene has been found in human tumors, which may be important for neoplastic transformation and tumor progression. Studies of the similar genes in mouse and chicken suggested the role in inner ear formation. [provided by RefSeq, Jul 2008]

FGF3 Gene-Disease associations (from GenCC):

• deafness with labyrinthine aplasia, microtia, and microdontia

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen

LOC107984368 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.891
• PP5: Variant 11-69818917-A-G is Pathogenic according to our data. Variant chr11-69818917-A-G is described in ClinVar as Pathogenic. ClinVar VariationId is 13841.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005247.4. 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
	FGF3	NM_005247.4	MANE Select	c.17T>C	p.Leu6Pro	missense	Exon 1 of 3	NP_005238.1	P11487

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FGF3	ENST00000334134.4	TSL:1 MANE Select	c.17T>C	p.Leu6Pro	missense	Exon 1 of 3	ENSP00000334122.2	P11487
	ENSG00000300527	ENST00000772585.1		n.-54A>G		upstream_gene	N/A

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1321052 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 651902

African (AFR) AF: 0.00 AC: 0 AN: 26592

American (AMR) AF: 0.00 AC: 0 AN: 27530

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 22970

East Asian (EAS) AF: 0.00 AC: 0 AN: 29222

South Asian (SAS) AF: 0.00 AC: 0 AN: 72986

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 33508

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3890

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1049860

Other (OTH) AF: 0.00 AC: 0 AN: 54494

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Deafness with labyrinthine aplasia, microtia, and microdontia (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.47
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.070
CADD	Uncertain	23
DANN	Benign	0.97
DEOGEN2	Uncertain	0.61	D
Eigen	Benign	-0.33
Eigen_PC	Benign	-0.25
FATHMM_MKL	Benign	0.75	D
LIST_S2	Benign	0.37	T
M_CAP	Pathogenic	0.90	D
MetaRNN	Pathogenic	0.89	D
MetaSVM	Benign	-0.43	T
MutationAssessor	Benign	1.8	L
PhyloP100		3.9
PrimateAI	Pathogenic	0.84	D
PROVEAN	Benign	-0.64	N
REVEL	Uncertain	0.46
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		0.0050	B
Vest4		0.56
MutPred		0.90		Loss of helix (P = 0.0041)
MVP		0.96
MPC		0.44
ClinPred		0.72	D
GERP RS		2.6
PromoterAI		-0.016	Neutral
Varity_R		0.63
gMVP		0.81
Mutation Taster		=13/87	disease causing (ClinVar)

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: rs121917706; hg19: chr11-69633685;