NM_023110.3:c.2464C>T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 1P and 7B. PP2BP4_ModerateBP6BS1

The NM_023110.3(FGFR1):c.2464C>T(p.Arg822Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000327 in 1,608,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R822H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00033 ( 0 hom. )

Consequence

FGFR1
NM_023110.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7

Conservation

PhyloP100: 9.60

Publications

22 publications found

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 Gene-Disease associations (from GenCC):

encephalocraniocutaneous lipomatosis
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
Hartsfield-Bixler-Demyer syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, G2P, ClinGen
hypogonadotropic hypogonadism 2 with or without anosmia
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
osteoglophonic dysplasia
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Orphanet, ClinGen, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
Pfeiffer syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
Pfeiffer syndrome type 1
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
Jackson-Weiss syndrome
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
hypogonadotropic hypogonadism
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
isolated trigonocephaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Kallmann syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
septooptic dysplasia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
tooth agenesis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
holoprosencephaly
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

FGFR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

PP2

Missense variant in the FGFR1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 93 curated pathogenic missense variants (we use a threshold of 10). The gene has 28 curated benign missense variants. Gene score misZ: 2.4852 (below the threshold of 3.09). Trascript score misZ: 4.2642 (above the threshold of 3.09). GenCC associations: The gene is linked to Hartsfield-Bixler-Demyer syndrome, Pfeiffer syndrome type 1, encephalocraniocutaneous lipomatosis, hypogonadotropic hypogonadism 2 with or without anosmia, osteoglophonic dysplasia, isolated trigonocephaly, septooptic dysplasia, Pfeiffer syndrome, tooth agenesis, hypogonadotropic hypogonadism, Kallmann syndrome, holoprosencephaly, Jackson-Weiss syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.13991779).

BP6

Variant 8-38413633-G-A is Benign according to our data. Variant chr8-38413633-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 536195.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000263 (40/152220) while in subpopulation AMR AF = 0.000393 (6/15286). AF 95% confidence interval is 0.000243. There are 0 homozygotes in GnomAd4. There are 17 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FGFR1	NM_023110.3 link	c.2464C>T	p.Arg822Cys	missense_variant	Exon 18 of 18	ENST00000447712.7	NP_075598.2	P11362-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FGFR1	ENST00000447712.7 link	c.2464C>T	p.Arg822Cys	missense_variant	Exon 18 of 18	1	NM_023110.3	ENSP00000400162.2	P11362-1
FGFR1	ENST00000397091.9 link	c.2458C>T	p.Arg820Cys	missense_variant	Exon 18 of 18	1		ENSP00000380280.5	P11362-7
FGFR1	ENST00000397108.8 link	c.2458C>T	p.Arg820Cys	missense_variant	Exon 19 of 19	1		ENSP00000380297.4	P11362-7
FGFR1	ENST00000397113.6 link	c.2458C>T	p.Arg820Cys	missense_variant	Exon 18 of 18	2		ENSP00000380302.2	P11362-7
FGFR1	ENST00000356207.9 link	c.2197C>T	p.Arg733Cys	missense_variant	Exon 17 of 17	1		ENSP00000348537.5	P11362-3
FGFR1	ENST00000397103.5 link	c.2197C>T	p.Arg733Cys	missense_variant	Exon 16 of 16	5		ENSP00000380292.1	E7EU09
FGFR1	ENST00000326324.10 link	c.2191C>T	p.Arg731Cys	missense_variant	Exon 17 of 17	1		ENSP00000327229.6	P11362-14

Frequencies

GnomAD3 genomes

AF:

0.000263

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000353

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.000265

AC:

AN:

237824

AF XY:

0.000271

show subpopulations

Gnomad AFR exome

AF:

0.000138

Gnomad AMR exome

AF:

0.000899

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000260

Gnomad OTH exome

AF:

0.000528

GnomAD4 exome

AF:

0.000334

AC:

486

AN:

1456680

Hom.:

Cov.:

AF XY:

0.000348

AC XY:

252

AN XY:

724118

show subpopulations

African (AFR)

AF:

0.0000897

AC:

AN:

33434

American (AMR)

AF:

0.000843

AC:

AN:

43872

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25830

East Asian (EAS)

AF:

0.00

AC:

AN:

39532

South Asian (SAS)

AF:

0.00

AC:

AN:

85366

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53062

Middle Eastern (MID)

AF:

0.000195

AC:

AN:

5120

European-Non Finnish (NFE)

AF:

0.000385

AC:

427

AN:

1110352

Other (OTH)

AF:

0.000299

AC:

AN:

60112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

109

136

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000263

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.000229

AC XY:

AN XY:

74354

show subpopulations

African (AFR)

AF:

0.000145

AC:

AN:

41452

American (AMR)

AF:

0.000393

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000353

AC:

AN:

68036

Other (OTH)

AF:

0.00143

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000300

Hom.:

Bravo

AF:

0.000385

ESP6500AA

AF:

0.000478

AC:

ESP6500EA

AF:

0.000238

AC:

ExAC

AF:

0.000173

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:7

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hypogonadotropic hypogonadism 2 with or without anosmia

Uncertain:1Benign:1

May 04, 2023

Reproductive Endocrine Unit, Massachusetts General Hospital

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

The variant has been classified as VUS based on the variant meeting the following ACMG Criteria: BS3. -

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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 was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

FGFR1-related disorder

Benign:1

Oct 31, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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

not provided

Benign:1

Jun 21, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: Neocleous2019[Abstract], 32982993, 27535533, 29419413, 18985070, 17154279, 23329143) -

Osteoglophonic dysplasia

Benign:1

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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 was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

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

Benign:1

Nov 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Craniosynostosis syndrome

Benign:1

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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 was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.039

BayesDel_noAF

Uncertain

0.10

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.44

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

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.78

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

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

M_CAP

Uncertain

0.25

MetaRNN

Benign

0.14

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

MetaSVM

Uncertain

0.14

MutationAssessor

Benign

1.2

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

PhyloP100

9.6

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-0.51

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

REVEL

Uncertain

0.45

Sift

Pathogenic

0.0

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

Sift4G

Pathogenic

0.0010

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

Polyphen

1.0, 1.0

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

Vest4

0.48

MVP

0.84

MPC

2.4

ClinPred

0.11

GERP RS

5.7

Varity_R

0.36

gMVP

0.60

Mutation Taster

=50/50

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over