8-38413783-G-A

Position:

chr8-38413783-G-A

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The ENST00000447712.7(FGFR1):c.2314C>T(p.Pro772Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00224 in 1,614,080 control chromosomes in the GnomAD database, including 83 homozygotes. In-silico tool predicts 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. P772T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.012 ( 45 hom., cov: 32)

Exomes 𝑓: 0.0012 ( 38 hom. )

Consequence

FGFR1
ENST00000447712.7 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:14

Conservation

PhyloP100: 4.90

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 -19 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), FGFR1. . Gene score misZ 2.4852 (greater than the threshold 3.09). Trascript score misZ 4.2642 (greater than threshold 3.09). GenCC has associacion of gene with hypogonadotropic hypogonadism 2 with or without anosmia, encephalocraniocutaneous lipomatosis, hypogonadotropic hypogonadism, tooth agenesis, isolated trigonocephaly, Pfeiffer syndrome type 1, Jackson-Weiss syndrome, Pfeiffer syndrome, Kallmann syndrome, septooptic dysplasia, hypogonadotropic hypogonadism 7 with or without anosmia, holoprosencephaly, osteoglophonic dwarfism, Hartsfield-Bixler-Demyer syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.00591293).

BP6

Variant 8-38413783-G-A is Benign according to our data. Variant chr8-38413783-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 194891.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-38413783-G-A is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0121 (1837/152232) while in subpopulation AFR AF= 0.0421 (1750/41542). AF 95% confidence interval is 0.0405. There are 45 homozygotes in gnomad4. There are 846 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 45 SM gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FGFR1	NM_023110.3 linkuse as main transcript	c.2314C>T	p.Pro772Ser	missense_variant	18/18	ENST00000447712.7	NP_075598.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FGFR1	ENST00000447712.7 linkuse as main transcript	c.2314C>T	p.Pro772Ser	missense_variant	18/18	1	NM_023110.3	ENSP00000400162	P4	P11362-1

Frequencies

GnomAD3 genomes

AF:

0.0121

AC:

1835

AN:

152114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0422

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00360

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000191

Gnomad OTH

AF:

0.00908

GnomAD3 exomes

AF:

0.00312

AC:

777

AN:

249124

Hom.:

AF XY:

0.00226

AC XY:

306

AN XY:

135210

show subpopulations

Gnomad AFR exome

AF:

0.0453

Gnomad AMR exome

AF:

0.00162

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000142

Gnomad OTH exome

AF:

0.000992

GnomAD4 exome

AF:

0.00122

AC:

1780

AN:

1461848

Hom.:

Cov.:

AF XY:

0.00101

AC XY:

737

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.0433

Gnomad4 AMR exome

AF:

0.00186

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000450

Gnomad4 OTH exome

AF:

0.00298

GnomAD4 genome

AF:

0.0121

AC:

1837

AN:

152232

Hom.:

Cov.:

AF XY:

0.0114

AC XY:

846

AN XY:

74420

show subpopulations

Gnomad4 AFR

AF:

0.0421

Gnomad4 AMR

AF:

0.00360

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000191

Gnomad4 OTH

AF:

0.00899

Alfa

AF:

0.00165

Hom.:

Bravo

AF:

0.0141

ESP6500AA

AF:

0.0417

AC:

171

ESP6500EA

AF:

0.000238

AC:

ExAC

AF:

0.00383

AC:

464

Asia WGS

AF:

0.00318

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:14

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

Benign, criteria provided, single submitter	clinical testing	GeneDx	Aug 31, 2015	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	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Benign, criteria provided, single submitter	clinical testing	Al Jalila Children’s Genomics Center, Al Jalila Childrens Speciality Hospital	Mar 25, 2020	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Feb 26, 2015	- -

not provided

Benign:3

Benign, criteria provided, single submitter	clinical testing	Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics	Apr 25, 2016	- -
Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Oct 16, 2023	- -

Hypogonadotropic hypogonadism 2 with or without anosmia

Benign:2

Likely benign, criteria provided, single submitter	curation	SIB Swiss Institute of Bioinformatics	May 31, 2018	This variant is interpreted as a Likely Benign, for hypogonadotropic hypogonadism 2 with or without anosmia, in Autosomal Dominant manner. The following ACMG Tag(s) were applied: BS1 => Allele frequency is greater than expected for disorder. BS2-Supporting => BS2 downgraded in strength to supporting. -
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. -

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). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

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

Labcorp Genetics (formerly Invitae), Labcorp

Feb 01, 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

0.11

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.12

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.88

.;.;D;.;.;.;.;.;T;.

Eigen

Uncertain

0.19

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.88

LIST_S2

Uncertain

0.94

D;.;D;D;.;D;D;D;D;D

MetaRNN

Benign

0.0059

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

MetaSVM

Benign

-0.45

MutationAssessor

Benign

1.7

.;.;L;.;.;.;.;.;.;.

MutationTaster

Benign

1.0

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

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-4.3

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

REVEL

Uncertain

0.42

Sift

Benign

0.083

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

Sift4G

Benign

0.094

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

Polyphen

0.42, 0.56, 0.16

.;.;B;P;.;.;B;B;.;.

Vest4

0.14

MVP

0.61

MPC

1.1

ClinPred

0.041

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.45

gMVP

0.55

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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