rs773535125

Variant names:

• chr5-44305009-C-T
• rs773535125
• NM_004465.2:c.613G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 3P and 7B. PM1 PP2 BP4_Moderate BS1_Supporting BS2

The NM_004465.2(FGF10):​c.613G>A​(p.Val205Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,626 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: FGF10 NM_004465.2 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 2.18
• Publications: 0 publications found

Genes affected

FGF10 (HGNC:3666): (fibroblast growth factor 10) 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 exhibits mitogenic activity for keratinizing epidermal cells, but essentially no activity for fibroblasts, which is similar to the biological activity of FGF7. Studies of the mouse homolog of suggested that this gene is required for embryonic epidermal morphogenesis including brain development, lung morphogenesis, and initiation of lim bud formation. This gene is also implicated to be a primary factor in the process of wound healing. [provided by RefSeq, Jul 2008]

FGF10 Gene-Disease associations (from GenCC):

• lacrimoauriculodentodigital syndrome 3

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
• aplasia of lacrimal and salivary glands

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• LADD syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• congenital heart defects, multiple types

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• craniosynostosis

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• PM1: In a chain Fibroblast growth factor 10 (size 170) in uniprot entity FGF10_HUMAN there are 8 pathogenic changes around while only 2 benign (80%) in NM_004465.2
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 8 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 0.85048 (below the threshold of 3.09). Trascript score misZ: 1.4672 (below the threshold of 3.09). GenCC associations: The gene is linked to lacrimoauriculodentodigital syndrome 3, LADD syndrome, aplasia of lacrimal and salivary glands, congenital heart defects, multiple types, craniosynostosis.
• BP4: Computational evidence support a benign effect (MetaRNN=0.15874442).
• BS1: Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.00000547 (8/1461626) while in subpopulation AMR AF = 0.000179 (8/44720). AF 95% confidence interval is 0.0000886. There are 0 homozygotes in GnomAdExome4. There are 3 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
• BS2: High AC in GnomAdExome4 at 8 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004465.2. 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
	FGF10	NM_004465.2	MANE Select	c.613G>A	p.Val205Met	missense	Exon 3 of 3	NP_004456.1	O15520

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FGF10	ENST00000264664.5	TSL:1 MANE Select	c.613G>A	p.Val205Met	missense	Exon 3 of 3	ENSP00000264664.4	O15520
	FGF10	ENST00000912799.1		c.613G>A	p.Val205Met	missense	Exon 4 of 4	ENSP00000582858.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.0000318 AC: 8 AN: 251360 AF XY: 0.0000221

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000231

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461626 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 727120

African (AFR) AF: 0.00 AC: 0 AN: 33464

American (AMR) AF: 0.000179 AC: 8 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39674

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111826

Other (OTH) AF: 0.00 AC: 0 AN: 60384

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000151

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Congenital absence of salivary gland;C5774287:Lacrimoauriculodentodigital syndrome 3 (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	16
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.42	T
Eigen	Benign	-0.055
Eigen_PC	Benign	0.076
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Benign	0.84	T
M_CAP	Benign	0.034	D
MetaRNN	Benign	0.16	T
MetaSVM	Uncertain	0.24	D
MutationAssessor	Benign	0.78	N
PhyloP100		2.2
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-0.67	N
REVEL	Benign	0.24
Sift	Uncertain	0.015	D
Sift4G	Uncertain	0.027	D
Polyphen		0.045	B
Vest4		0.11
MutPred		0.28		Gain of disorder (P = 0.0461)
MVP		0.71
MPC		1.3
ClinPred		0.081	T
GERP RS		5.0
Varity_R		0.10
gMVP		0.48
Mutation Taster		=66/34	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: rs773535125; hg19: chr5-44305111;