rs1553842213

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000142.5(FGFR3):​c.109G>A​(p.Glu37Lys) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000012 in 1,245,626 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

FGFR3
NM_000142.5 missense, splice_region

Scores

2
5
12
Splicing: ADA: 0.9938
1
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.04
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FGFR3NM_000142.5 linkuse as main transcriptc.109G>A p.Glu37Lys missense_variant, splice_region_variant 2/18 ENST00000440486.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGFR3ENST00000440486.8 linkuse as main transcriptc.109G>A p.Glu37Lys missense_variant, splice_region_variant 2/185 NM_000142.5 P4P22607-1

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD4 exome
AF:
0.0000120
AC:
15
AN:
1245626
Hom.:
0
Cov.:
26
AF XY:
0.0000147
AC XY:
9
AN XY:
610588
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000141
Gnomad4 OTH exome
AF:
0.0000200
GnomAD4 genome
Cov.:
34
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJul 07, 2016- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxOct 29, 2020Not observed in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Uncertain
0.025
T
BayesDel_noAF
Benign
-0.20
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.57
D;T;.;.;T;.
Eigen
Benign
-0.72
Eigen_PC
Benign
-0.84
FATHMM_MKL
Benign
0.24
N
LIST_S2
Uncertain
0.94
D;D;D;D;D;.
M_CAP
Pathogenic
0.98
D
MetaRNN
Uncertain
0.44
T;T;T;T;T;T
MetaSVM
Benign
-0.63
T
MutationAssessor
Benign
1.2
L;.;L;L;.;L
MutationTaster
Benign
0.87
D;D;D;D;N;N
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-1.0
N;N;N;N;.;N
REVEL
Benign
0.27
Sift
Benign
0.34
T;D;T;T;.;T
Sift4G
Benign
0.86
T;T;T;T;T;T
Polyphen
0.18
B;D;B;D;.;D
Vest4
0.48
MutPred
0.41
Gain of ubiquitination at E37 (P = 0.0077);Gain of ubiquitination at E37 (P = 0.0077);Gain of ubiquitination at E37 (P = 0.0077);Gain of ubiquitination at E37 (P = 0.0077);Gain of ubiquitination at E37 (P = 0.0077);Gain of ubiquitination at E37 (P = 0.0077);
MVP
0.92
MPC
0.36
ClinPred
0.11
T
GERP RS
1.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.054
gMVP
0.34

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Benign
0.72
SpliceAI score (max)
0.12
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.

Other links and lift over

dbSNP: rs1553842213; hg19: chr4-1795770; API