rs140382957

chr8-38429720-G-Achr8-38429720-G-Cchr8-38429720-G-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 5P and 20B. PM1PM5PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_023110.3(FGFR1):c.320C>T(p.Ser107Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000619 in 1,577,186 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S107T) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.00060 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00062 ( 12 hom. )

Consequence

FGFR1
NM_023110.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: 2.52

Variant links:

Genes affected

FGFR1 (HGNC:3688): (fibroblast growth factor receptor 1) The protein encoded by this gene is a member of the fibroblast growth factor receptor (FGFR) family, where amino acid sequence is highly conserved between members and throughout evolution. FGFR family members differ from one another in their ligand affinities and tissue distribution. A full-length representative protein consists 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 both acidic and basic fibroblast growth factors and is involved in limb induction. Mutations in this gene have been associated with Pfeiffer syndrome, Jackson-Weiss syndrome, Antley-Bixler syndrome, osteoglophonic dysplasia, and autosomal dominant Kallmann syndrome 2. Chromosomal aberrations involving this gene are associated with stem cell myeloproliferative disorder and stem cell leukemia lymphoma syndrome. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

FGFR1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 10 uncertain in NM_023110.3

PM5

Other missense variant is known to change same aminoacid residue: Variant chr8-38429721-A-T is described in Lovd as [Pathogenic].

PP2

Missense variant where missense usually causes diseases, FGFR1

BP4

Computational evidence support a benign effect (MetaRNN=0.0077288747).

BP6

Variant 8-38429720-G-A is Benign according to our data. Variant chr8-38429720-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 196511.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-38429720-G-A is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000604 (92/152306) while in subpopulation EAS AF= 0.0164 (85/5182). AF 95% confidence interval is 0.0136. There are 1 homozygotes in gnomad4. There are 62 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome at 2 SM gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FGFR1	NM_023110.3 linkuse as main transcript	c.320C>T	p.Ser107Leu	missense_variant	3/18	ENST00000447712.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FGFR1	ENST00000447712.7 linkuse as main transcript	c.320C>T	p.Ser107Leu	missense_variant	3/18	1	NM_023110.3	P4	P11362-1

Frequencies

GnomAD3 genomes

AF:

0.000605

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0164

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00139

AC:

266

AN:

191842

Hom.:

AF XY:

0.00136

AC XY:

139

AN XY:

102428

show subpopulations

Gnomad AFR exome

AF:

0.000175

Gnomad AMR exome

AF:

0.0000352

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0177

Gnomad SAS exome

AF:

0.000198

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000492

Gnomad OTH exome

AF:

0.000995

GnomAD4 exome

AF:

0.000620

AC:

884

AN:

1424880

Hom.:

Cov.:

AF XY:

0.000604

AC XY:

426

AN XY:

705344

show subpopulations

Gnomad4 AFR exome

AF:

0.0000615

Gnomad4 AMR exome

AF:

0.0000254

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0192

Gnomad4 SAS exome

AF:

0.000282

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000156

Gnomad4 OTH exome

AF:

0.00209

GnomAD4 genome

AF:

0.000604

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.000833

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0164

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.00111

Hom.:

Bravo

AF:

0.000888

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00120

AC:

145

Asia WGS

AF:

0.00780

AC:

AN:

3476

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:11

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:4

Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jan 26, 2015	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	May 09, 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. -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Feb 28, 2017	- -

Trigonocephaly 1

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

FGFR1-related disorder

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 18, 2019

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Hypogonadotropic hypogonadism 2 with or without anosmia

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

not provided

Benign:1

Likely benign, no assertion criteria provided

clinical testing

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

- -

Osteoglophonic dysplasia

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

Pfeiffer syndrome;C1563720:Hypogonadotropic hypogonadism 2 with or without anosmia

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 24, 2024

- -

Craniosynostosis syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.084

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.36

Cadd

Benign

Dann

Benign

0.93

Eigen

Benign

-0.84

Eigen_PC

Benign

-0.68

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.82

T;.;T;T;T;.;T;T;T

MetaRNN

Benign

0.0077

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.53

PROVEAN

Benign

0.36

N;N;N;N;N;N;N;N;N

REVEL

Benign

0.061

Sift

Benign

0.71

T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.79

T;T;T;T;T;T;T;T;.

Polyphen

0.055

B;B;B;.;B;B;B;B;.

Vest4

0.14

MVP

0.57

MPC

0.030

ClinPred

0.0047

GERP RS

3.6

Varity_R

0.10

gMVP

0.29

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

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