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GeneBe

8-22048128-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PM5PP3_Strong

The NM_003867.4(FGF17):​c.530G>T​(p.Arg177Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000656 in 152,366 control chromosomes in the GnomAD 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. R177H) has been classified as Pathogenic.

Frequency

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

Consequence

FGF17
NM_003867.4 missense

Scores

11
5
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.38
Variant links:
Genes affected
FGF17 (HGNC:3673): (fibroblast growth factor 17) This gene encodes a member of the fibroblast growth factor (FGF) family. Member of the FGF family 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 protein is expressed during embryogenesis and in the adult cerebellum and cortex and may be essential for vascular growth and normal brain development. Mutations in this gene are the cause of hypogonadotropic hypogonadism 20 with or without anosmia. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2015]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr8-22048128-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 50859.Status of the report is no_assertion_criteria_provided, 0 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.949

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FGF17NM_003867.4 linkuse as main transcriptc.530G>T p.Arg177Leu missense_variant 5/5 ENST00000359441.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGF17ENST00000359441.4 linkuse as main transcriptc.530G>T p.Arg177Leu missense_variant 5/51 NM_003867.4 P4O60258-1
FGF17ENST00000518533.5 linkuse as main transcriptc.497G>T p.Arg166Leu missense_variant 5/51 A1O60258-2
FGF17ENST00000521709.1 linkuse as main transcriptn.768G>T non_coding_transcript_exon_variant 3/33
FGF17ENST00000524314.1 linkuse as main transcriptn.1900G>T non_coding_transcript_exon_variant 3/32

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152248
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD4 exome
Cov.:
32
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152366
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74502
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000653
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

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.44
D
BayesDel_noAF
Pathogenic
0.39
CADD
Pathogenic
34
DANN
Uncertain
1.0
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Pathogenic
0.72
D
MetaRNN
Pathogenic
0.95
D;D
MetaSVM
Uncertain
0.66
D
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.75
T
PROVEAN
Pathogenic
-6.1
D;D
REVEL
Pathogenic
0.92
Sift
Uncertain
0.0010
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.99
D;D
Vest4
0.88
MutPred
0.71
.;Loss of MoRF binding (P = 0.0069);
MVP
0.97
MPC
2.5
ClinPred
1.0
D
GERP RS
4.9
Varity_R
0.86
gMVP
0.89

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr8-21905639; API