10-101770378-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_033163.5(FGF8):​c.686C>A​(p.Thr229Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,451,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign 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. T229M) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FGF8
NM_033163.5 missense

Scores

3
16

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.80
Variant links:
Genes affected
FGF8 (HGNC:3686): (fibroblast growth factor 8) 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 protein is known to be a factor that supports androgen and anchorage independent growth of mammary tumor cells. Overexpression of this gene has been shown to increase tumor growth and angiogensis. The adult expression of this gene is restricted to testes and ovaries. Temporal and spatial pattern of this gene expression suggests its function as an embryonic epithelial factor. Studies of the mouse and chick homologs revealed roles in midbrain and limb development, organogenesis, embryo gastrulation and left-right axis determination. The alternative splicing of this gene results in four transcript variants. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07485163).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FGF8NM_033163.5 linkuse as main transcriptc.686C>A p.Thr229Lys missense_variant 6/6 ENST00000320185.7
LOC105378457XR_007062268.1 linkuse as main transcriptn.138-179G>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGF8ENST00000320185.7 linkuse as main transcriptc.686C>A p.Thr229Lys missense_variant 6/61 NM_033163.5 A2P55075-4

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000441
AC:
1
AN:
226744
Hom.:
0
AF XY:
0.00000812
AC XY:
1
AN XY:
123146
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000594
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:
0.00000138
AC:
2
AN:
1451096
Hom.:
0
Cov.:
32
AF XY:
0.00000139
AC XY:
1
AN XY:
720990
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000255
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000191
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
23
DANN
Benign
0.92
DEOGEN2
Uncertain
0.44
.;T;.;.;.
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.16
FATHMM_MKL
Benign
0.53
D
LIST_S2
Benign
0.78
T;T;T;T;T
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.075
T;T;T;T;T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
-0.81
.;N;.;.;.
MutationTaster
Benign
0.64
D;N;N;N
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
-1.2
.;N;N;N;N
REVEL
Benign
0.22
Sift
Benign
0.83
.;T;T;T;T
Sift4G
Benign
0.30
T;T;T;T;T
Polyphen
0.36, 0.68, 0.29, 0.49
.;B;P;B;P
Vest4
0.24
MutPred
0.30
.;Gain of methylation at T218 (P = 0.0024);.;.;.;
MVP
0.49
MPC
1.1
ClinPred
0.21
T
GERP RS
3.8
Varity_R
0.15
gMVP
0.22

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: rs137852664; hg19: chr10-103530135; API