rs137852662

Variant names:

• chr10-101774771-T-C
• rs137852662
• NM_033163.5:c.298A>G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3 PP5

The NM_033163.5(FGF8):​c.298A>G​(p.Lys100Glu) variant causes a missense change. The variant allele was found at a frequency of 0.000000686 in 1,457,670 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: 31)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: FGF8 NM_033163.5 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 5.78

Genes affected

FGF8 (HGNC:3686): (fibroblast growth factor 8) 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 protein is known to be a factor that supports androgen and anchorage independent growth of mammary tumor cells. Overexpression of this gene has been shown to increase tumor growth and angiogensis. The adult expression of this gene is restricted to testes and ovaries. Temporal and spatial pattern of this gene expression suggests its function as an embryonic epithelial factor. Studies of the mouse and chick homologs revealed roles in midbrain and limb development, organogenesis, embryo gastrulation and left-right axis determination. The alternative splicing of this gene results in four transcript variants. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.838
• PP5: Variant 10-101774771-T-C is Pathogenic according to our data. Variant chr10-101774771-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 9124.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FGF8	NM_033163.5	c.298A>G	p.Lys100Glu	missense_variant	Exon 4 of 6	ENST00000320185.7	NP_149353.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FGF8	ENST00000320185.7	c.298A>G	p.Lys100Glu	missense_variant	Exon 4 of 6	1	NM_033163.5	ENSP00000321797.2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1457670 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 725418

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Hypogonadotropic hypogonadism 6 with or without anosmia Pathogenic:1

Aug 01, 2008

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.86
BayesDel_addAF	Pathogenic	0.38	D
BayesDel_noAF	Pathogenic	0.31
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.93	D;.;.;.
Eigen	Uncertain	0.29
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.96	D;D;D;D
M_CAP	Pathogenic	0.31	D
MetaRNN	Pathogenic	0.84	D;D;D;D
MetaSVM	Uncertain	0.51	D
MutationAssessor	Uncertain	2.4	M;.;.;.
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	-2.3	N;N;N;N
REVEL	Pathogenic	0.79
Sift	Uncertain	0.0030	D;D;D;D
Sift4G	Uncertain	0.029	D;D;D;D
Polyphen		0.48	P;P;P;B
Vest4		0.76
MutPred		0.73		Loss of MoRF binding (P = 0.0092);.;.;.;
MVP		0.97
MPC		1.5
ClinPred		0.96	D
GERP RS		4.5
Varity_R		0.91
gMVP		0.94

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

LitVar

Other links and lift over

dbSNP: rs137852662; hg19: chr10-103534528;