4-1799760-G-A

Position:

chr4-1799760-G-A

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_000142.5(FGFR3):c.393G>A(p.Ser131=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00357 in 1,613,040 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0028 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0036 ( 16 hom. )

Consequence

FGFR3
NM_000142.5 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:13

Conservation

PhyloP100: -3.96

Variant links:

Genes affected

FGFR3 (HGNC:3690): (fibroblast growth factor receptor 3) This gene encodes a member of the fibroblast growth factor receptor (FGFR) family, with its amino acid sequence being highly conserved between members and among divergent species. FGFR family members differ from one another in their ligand affinities and tissue distribution. A full-length representative protein would consist of an extracellular region, composed of three immunoglobulin-like domains, a single hydrophobic membrane-spanning segment and a cytoplasmic tyrosine kinase domain. The extracellular portion of the protein interacts with fibroblast growth factors, setting in motion a cascade of downstream signals, ultimately influencing mitogenesis and differentiation. This particular family member binds acidic and basic fibroblast growth hormone and plays a role in bone development and maintenance. Mutations in this gene lead to craniosynostosis and multiple types of skeletal dysplasia. [provided by RefSeq, Aug 2017]

FGFR3 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6

Variant 4-1799760-G-A is Benign according to our data. Variant chr4-1799760-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 211004.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr4-1799760-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00282 (430/152338) while in subpopulation NFE AF= 0.00429 (292/68020). AF 95% confidence interval is 0.00389. There are 0 homozygotes in gnomad4. There are 199 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 16 SD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FGFR3	NM_000142.5 linkuse as main transcript	c.393G>A	p.Ser131=	synonymous_variant	4/18	ENST00000440486.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FGFR3	ENST00000440486.8 linkuse as main transcript	c.393G>A	p.Ser131=	synonymous_variant	4/18	5	NM_000142.5	P4	P22607-1

Frequencies

GnomAD3 genomes

AF:

0.00281

AC:

428

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00281

Gnomad ASJ

AF:

0.000865

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00311

Gnomad MID

AF:

0.0190

Gnomad NFE

AF:

0.00428

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.00280

AC:

699

AN:

249766

Hom.:

AF XY:

0.00272

AC XY:

368

AN XY:

135472

show subpopulations

Gnomad AFR exome

AF:

0.000809

Gnomad AMR exome

AF:

0.00206

Gnomad ASJ exome

AF:

0.00300

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00141

Gnomad FIN exome

AF:

0.00292

Gnomad NFE exome

AF:

0.00407

Gnomad OTH exome

AF:

0.00345

GnomAD4 exome

AF:

0.00364

AC:

5323

AN:

1460702

Hom.:

Cov.:

AF XY:

0.00356

AC XY:

2588

AN XY:

726652

show subpopulations

Gnomad4 AFR exome

AF:

0.00119

Gnomad4 AMR exome

AF:

0.00224

Gnomad4 ASJ exome

AF:

0.00233

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00150

Gnomad4 FIN exome

AF:

0.00304

Gnomad4 NFE exome

AF:

0.00413

Gnomad4 OTH exome

AF:

0.00277

GnomAD4 genome

AF:

0.00282

AC:

430

AN:

152338

Hom.:

Cov.:

AF XY:

0.00267

AC XY:

199

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.000962

Gnomad4 AMR

AF:

0.00281

Gnomad4 ASJ

AF:

0.000865

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00124

Gnomad4 FIN

AF:

0.00311

Gnomad4 NFE

AF:

0.00429

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.00360

Hom.:

Bravo

AF:

0.00275

Asia WGS

AF:

0.00202

AC:

AN:

3478

EpiCase

AF:

0.00453

EpiControl

AF:

0.00368

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:13

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:8

Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, Amsterdam University Medical Center	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Mar 01, 2024	FGFR3: BP4, BP7 -
Likely benign, no assertion criteria provided	clinical testing	Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)	-	- -
Likely benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 30, 2024	- -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Oct 06, 2023	- -
Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

not specified

Benign:4

Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Apr 20, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Feb 28, 2018	- -
Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Mar 16, 2017	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 16, 2016	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Connective tissue disorder

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Feb 12, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.64

CADD

Benign

1.6

DANN

Benign

0.78

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.8

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.36

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.36

Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over