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rs1039515359

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 4P and 5B. PM1PM2BP6BS1

The NM_005247.4(FGF3):​c.100G>T​(p.Gly34Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000189 in 1,478,852 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

FGF3
NM_005247.4 missense

Scores

3
10
6

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 3.02
Variant links:
Genes affected
FGF3 (HGNC:3681): (fibroblast growth factor 3) The protein encoded by this gene is a member of the fibroblast growth factor (FGF) family. FGF family members possess broad mitogenic and cell survival activities and are involved in a variety of biological processes including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. This gene was identified by its similarity with mouse fgf3/int-2, a proto-oncogene activated in virally induced mammary tumors in the mouse. Frequent amplification of this gene has been found in human tumors, which may be important for neoplastic transformation and tumor progression. Studies of the similar genes in mouse and chicken suggested the role in inner ear formation. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM1
In a chain Fibroblast growth factor 3 (size 221) in uniprot entity FGF3_HUMAN there are 18 pathogenic changes around while only 4 benign (82%) in NM_005247.4
PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 11-69818834-C-A is Benign according to our data. Variant chr11-69818834-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 426706.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Likely_benign=1}.
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000203 (27/1326952) while in subpopulation AMR AF= 0.000968 (27/27884). AF 95% confidence interval is 0.000683. There are 0 homozygotes in gnomad4_exome. There are 6 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FGF3NM_005247.4 linkuse as main transcriptc.100G>T p.Gly34Cys missense_variant 1/3 ENST00000334134.4
LOC107984368XR_001748071.2 linkuse as main transcriptn.127C>A non_coding_transcript_exon_variant 1/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGF3ENST00000334134.4 linkuse as main transcriptc.100G>T p.Gly34Cys missense_variant 1/31 NM_005247.4 P1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151900
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000217
AC:
19
AN:
87642
Hom.:
0
AF XY:
0.0000803
AC XY:
4
AN XY:
49840
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00114
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000203
AC:
27
AN:
1326952
Hom.:
0
Cov.:
32
AF XY:
0.00000917
AC XY:
6
AN XY:
654584
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000968
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151900
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74202
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000656
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000843
Hom.:
0
Bravo
AF:
0.0000567

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJul 19, 2022This sequence change replaces glycine, which is neutral and non-polar, with cysteine, which is neutral and slightly polar, at codon 34 of the FGF3 protein (p.Gly34Cys). This variant is present in population databases (no rsID available, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with FGF3-related conditions. ClinVar contains an entry for this variant (Variation ID: 426706). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 29, 2020- -
Deafness with labyrinthine aplasia, microtia, and microdontia Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 31, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.85
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Uncertain
-0.030
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.71
D
Eigen
Uncertain
0.30
Eigen_PC
Benign
0.21
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Benign
0.84
T
M_CAP
Pathogenic
0.49
D
MetaRNN
Uncertain
0.69
D
MetaSVM
Uncertain
-0.28
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
-2.1
N
REVEL
Uncertain
0.58
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.033
D
Polyphen
1.0
D
Vest4
0.57
MutPred
0.53
Loss of disorder (P = 0.0049);
MVP
0.95
MPC
0.29
ClinPred
0.23
T
GERP RS
2.6
Varity_R
0.30
gMVP
0.59

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: rs1039515359; hg19: chr11-69633602; API