11-69775072-C-G

Position:

• chr11-69775072-C-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2 BP4_Moderate BS2

The NM_002007.4(FGF4):​c.13G>C​(p.Gly5Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000423 in 1,182,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000042 (0 hom.)
• Consequence: FGF4 NM_002007.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.142

Genes affected

FGF4 (HGNC:3682): (fibroblast growth factor 4) 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 oncogenic transforming activity. This gene and FGF3, another oncogenic growth factor, are located closely on chromosome 11. Co-amplification of both genes was found in various kinds of human tumors. Studies on the mouse homolog suggested a function in bone morphogenesis and limb development through the sonic hedgehog (SHH) signaling pathway. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1834966).
• BS2: High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FGF4	NM_002007.4	c.13G>C	p.Gly5Arg	missense_variant	1/3	ENST00000168712.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FGF4	ENST00000168712.3	c.13G>C	p.Gly5Arg	missense_variant	1/3	1	NM_002007.4	P1
FGF4	ENST00000538040.1	n.93G>C		non_coding_transcript_exon_variant	1/2	1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome AF: 0.00000423 AC: 5 AN: 1182852 Hom.: 0 Cov.: 32 AF XY: 0.00000522 AC XY: 3 AN XY: 574516

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: 0.00000508

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 34

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 27, 2022

The c.13G>C (p.G5R) alteration is located in exon 1 (coding exon 1) of the FGF4 gene. This alteration results from a G to C substitution at nucleotide position 13, causing the glycine (G) at amino acid position 5 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Benign	-0.077	T
BayesDel_noAF	Benign	-0.35
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.40	T
Eigen	Benign	-0.49
Eigen_PC	Benign	-0.43
FATHMM_MKL	Uncertain	0.79	D
LIST_S2	Benign	0.53	T
M_CAP	Pathogenic	0.49	D
MetaRNN	Benign	0.18	T
MetaSVM	Benign	-0.86	T
MutationAssessor	Benign	1.2	L
MutationTaster	Benign	0.79	N
PrimateAI	Pathogenic	0.87	D
PROVEAN	Benign	0.34	N
REVEL	Benign	0.19
Sift	Uncertain	0.0090	D
Sift4G	Benign	0.44	T
Polyphen		0.0040	B
Vest4		0.14
MutPred		0.35		Gain of methylation at G5 (P = 0.0351);
MVP		0.59
MPC		0.95
ClinPred		0.42	T
GERP RS		0.74
Varity_R		0.11
gMVP		0.56

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-69589840;