dbSNP rs2305180: FGFR3:p.Arg196Arg (chr4-1801509-C-T) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000142.5(FGFR3):c.588C>T(p.Arg196Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0107 in 1,563,482 control chromosomes in the GnomAD database, including 395 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.030 ( 161 hom., cov: 33)

Exomes 𝑓: 0.0087 ( 234 hom. )

Consequence

FGFR3
NM_000142.5 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -1.19

Publications

9 publications found

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 Gene-Disease associations (from GenCC):

achondroplasia
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, G2P, Ambry Genetics, ClinGen
Crouzon syndrome-acanthosis nigricans syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics, ClinGen, Genomics England PanelApp, G2P
hypochondroplasia
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, G2P, Ambry Genetics
lacrimoauriculodentodigital syndrome 2
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
Muenke syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, Orphanet, ClinGen, Genomics England PanelApp
thanatophoric dysplasia
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
thanatophoric dysplasia type 1
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, ClinGen, Ambry Genetics, Genomics England PanelApp
thanatophoric dysplasia type 2
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
camptodactyly-tall stature-scoliosis-hearing loss syndrome
Inheritance: AR, AD, SD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, Ambry Genetics, G2P
severe achondroplasia-developmental delay-acanthosis nigricans syndrome
Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen
isolated brachycephaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
isolated plagiocephaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
LADD syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
LADD syndrome 1
Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

FGFR3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 4-1801509-C-T is Benign according to our data. Variant chr4-1801509-C-T is described in ClinVar as Benign. ClinVar VariationId is 197630.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-1.19 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0816 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000142.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FGFR3	NM_000142.5	MANE Select	c.588C>T	p.Arg196Arg	synonymous	Exon 5 of 18	NP_000133.1	P22607-1
FGFR3	NM_001163213.2		c.588C>T	p.Arg196Arg	synonymous	Exon 5 of 18	NP_001156685.1	P22607-2
FGFR3	NM_001354809.2		c.588C>T	p.Arg196Arg	synonymous	Exon 5 of 18	NP_001341738.1	X5D2G8

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FGFR3	ENST00000440486.8	TSL:5 MANE Select	c.588C>T	p.Arg196Arg	synonymous	Exon 5 of 18	ENSP00000414914.2	P22607-1
FGFR3	ENST00000481110.7	TSL:1	c.588C>T	p.Arg196Arg	synonymous	Exon 5 of 17	ENSP00000420533.2	F8W9L4
FGFR3	ENST00000352904.6	TSL:1	c.588C>T	p.Arg196Arg	synonymous	Exon 4 of 15	ENSP00000231803.1	P22607-3

Frequencies

GnomAD3 genomes

AF:

0.0299

AC:

4548

AN:

152208

Hom.:

160

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0840

Gnomad AMI

AF:

0.0241

Gnomad AMR

AF:

0.0185

Gnomad ASJ

AF:

0.0236

Gnomad EAS

AF:

0.0249

Gnomad SAS

AF:

0.0168

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.0380

Gnomad NFE

AF:

0.00582

Gnomad OTH

AF:

0.0287

GnomAD2 exomes

AF:

0.0145

AC:

2393

AN:

164648

AF XY:

0.0141

show subpopulations

Gnomad AFR exome

AF:

0.0861

Gnomad AMR exome

AF:

0.0101

Gnomad ASJ exome

AF:

0.0265

Gnomad EAS exome

AF:

0.0216

Gnomad FIN exome

AF:

0.000383

Gnomad NFE exome

AF:

0.00656

Gnomad OTH exome

AF:

0.0149

GnomAD4 exome

AF:

0.00868

AC:

12252

AN:

1411156

Hom.:

234

Cov.:

AF XY:

0.00883

AC XY:

6161

AN XY:

697356

show subpopulations

African (AFR)

AF:

0.0862

AC:

2788

AN:

32354

American (AMR)

AF:

0.0115

AC:

424

AN:

36950

Ashkenazi Jewish (ASJ)

AF:

0.0274

AC:

692

AN:

25272

East Asian (EAS)

AF:

0.0250

AC:

923

AN:

36896

South Asian (SAS)

AF:

0.0177

AC:

1421

AN:

80378

European-Finnish (FIN)

AF:

0.000599

AC:

AN:

48400

Middle Eastern (MID)

AF:

0.0406

AC:

232

AN:

5710

European-Non Finnish (NFE)

AF:

0.00444

AC:

4829

AN:

1086650

Other (OTH)

AF:

0.0156

AC:

914

AN:

58546

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

787

1574

2360

3147

3934

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

230

460

690

920

1150

<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:

0.0299

AC:

4552

AN:

152326

Hom.:

161

Cov.:

AF XY:

0.0287

AC XY:

2139

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.0839

AC:

3487

AN:

41560

American (AMR)

AF:

0.0185

AC:

283

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.0236

AC:

AN:

3472

East Asian (EAS)

AF:

0.0249

AC:

129

AN:

5172

South Asian (SAS)

AF:

0.0161

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.000188

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.0408

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00581

AC:

395

AN:

68036

Other (OTH)

AF:

0.0293

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

224

448

672

896

1120

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

144

192

240

<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:

0.0150

Hom.:

Bravo

AF:

0.0334

Asia WGS

AF:

0.0370

AC:

127

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (6)

not provided (4)

Connective tissue disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

4.9

(source)

DANN

Benign

0.85

PhyloP100

-1.2

PromoterAI

-0.012

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=95/5

polymorphism (auto)

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over