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rs4647924

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2_SupportingPM5PP3_Moderate

The NM_000142.5(FGFR3):c.749C>A(p.Pro250Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152186 control chromosomes in the gnomAD Genomes database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P250R) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

FGFR3
NM_000142.5 missense

Scores

10
8
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.85

Links

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM1
?
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 5 uncertain in NM_000142.5
PM2
?
Very rare variant; Number of alleles below threshold, gnomad allele frequency = 0.00000657 (1/152186) while in subpopulation NFE AF= 0.0000147 (1/68026). AF 95% confidence interval is 0. There are 0 homozygotes in gnomad. There are 0 alleles in male gnomad subpopulation. Median coverage is 33. This position pass quality control queck.
PM5
?
Other missense variant is known to change same aminoacid residue: Variant chr4-1801844-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 16340. Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.915

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FGFR3NM_000142.5 linkuse as main transcriptc.749C>A p.Pro250Gln missense_variant 7/18 ENST00000440486.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGFR3ENST00000440486.8 linkuse as main transcriptc.749C>A p.Pro250Gln missense_variant 7/185 NM_000142.5 P4P22607-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152186
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1454806
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
722914
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.040
Cadd
Uncertain
24
Dann
Uncertain
0.99
DEOGEN2
Pathogenic
0.89
D;T;.;.;T;.;.
Eigen
Uncertain
0.37
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D;.;D
M_CAP
Pathogenic
0.79
D
MetaRNN
Pathogenic
0.92
D;D;D;D;D;D;D
MetaSVM
Uncertain
0.61
D
MutationAssessor
Uncertain
2.0
M;.;M;M;.;M;.
MutationTaster
Benign
1.0
D;D;D;D;N;N
PrimateAI
Pathogenic
0.83
D
PROVEAN
Pathogenic
-6.1
D;D;D;D;.;D;D
REVEL
Pathogenic
0.73
Sift
Pathogenic
0.0
D;D;D;D;.;D;D
Sift4G
Uncertain
0.017
D;D;D;D;D;D;D
Polyphen
1.0
D;D;P;D;.;D;.
Vest4
0.69
MutPred
0.68
Loss of glycosylation at P250 (P = 0.0271);Loss of glycosylation at P250 (P = 0.0271);Loss of glycosylation at P250 (P = 0.0271);Loss of glycosylation at P250 (P = 0.0271);Loss of glycosylation at P250 (P = 0.0271);Loss of glycosylation at P250 (P = 0.0271);.;
MVP
0.97
MPC
0.75
ClinPred
1.0
D
GERP RS
3.1
RBP_binding_hub_radar
1.0
RBP_regulation_power_radar
2.1
Varity_R
0.91
gMVP
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs4647924; hg19: chr4-1803571; COSMIC: COSV53402284; COSMIC: COSV53402284;