4-1793606-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000142.5(FGFR3):​c.-103+141C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.137 in 149,536 control chromosomes in the GnomAD database, including 1,690 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.14 ( 1680 hom., cov: 31)
Exomes 𝑓: 0.16 ( 10 hom. )

Consequence

FGFR3
NM_000142.5 intron

Scores

1
1

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.508
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 4-1793606-C-T is Benign according to our data. Variant chr4-1793606-C-T is described in ClinVar as [Benign]. Clinvar id is 1251273.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.191 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FGFR3NM_000142.5 linkuse as main transcriptc.-103+141C>T intron_variant ENST00000440486.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGFR3ENST00000440486.8 linkuse as main transcriptc.-103+141C>T intron_variant 5 NM_000142.5 P4P22607-1

Frequencies

GnomAD3 genomes
AF:
0.137
AC:
20421
AN:
148772
Hom.:
1679
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0538
Gnomad AMI
AF:
0.0973
Gnomad AMR
AF:
0.140
Gnomad ASJ
AF:
0.261
Gnomad EAS
AF:
0.0256
Gnomad SAS
AF:
0.201
Gnomad FIN
AF:
0.192
Gnomad MID
AF:
0.294
Gnomad NFE
AF:
0.176
Gnomad OTH
AF:
0.167
GnomAD4 exome
AF:
0.161
AC:
106
AN:
658
Hom.:
10
AF XY:
0.154
AC XY:
74
AN XY:
482
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0625
Gnomad4 ASJ exome
AF:
0.300
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.150
Gnomad4 FIN exome
AF:
0.206
Gnomad4 NFE exome
AF:
0.165
Gnomad4 OTH exome
AF:
0.233
GnomAD4 genome
AF:
0.137
AC:
20421
AN:
148878
Hom.:
1680
Cov.:
31
AF XY:
0.138
AC XY:
10051
AN XY:
72664
show subpopulations
Gnomad4 AFR
AF:
0.0538
Gnomad4 AMR
AF:
0.140
Gnomad4 ASJ
AF:
0.261
Gnomad4 EAS
AF:
0.0257
Gnomad4 SAS
AF:
0.201
Gnomad4 FIN
AF:
0.192
Gnomad4 NFE
AF:
0.176
Gnomad4 OTH
AF:
0.166
Alfa
AF:
0.0788
Hom.:
107
Bravo
AF:
0.130
Asia WGS
AF:
0.110
AC:
352
AN:
3224

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 30, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
18
DANN
Uncertain
0.98

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.

Other links and lift over

dbSNP: rs17879199; hg19: chr4-1795333; COSMIC: COSV53421799; COSMIC: COSV53421799; API