chr16-67163272-C-G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018378.3(FBXL8):​c.577C>G​(p.Leu193Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000656 in 1,570,288 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

FBXL8
NM_018378.3 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.393

Publications

0 publications found
Variant links:
Genes affected
FBXL8 (HGNC:17875): (F-box and leucine rich repeat protein 8) This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of the ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbls class. It shares 78% sequence identity with the mouse protein. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.113529325).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FBXL8NM_018378.3 linkc.577C>G p.Leu193Val missense_variant Exon 3 of 3 ENST00000258200.8 NP_060848.2 Q96CD0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FBXL8ENST00000258200.8 linkc.577C>G p.Leu193Val missense_variant Exon 3 of 3 1 NM_018378.3 ENSP00000258200.3 Q96CD0
ENSG00000265690ENST00000580114.5 linkn.-114C>G upstream_gene_variant 5 ENSP00000464271.1 J3QRK9

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152266
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000393
AC:
7
AN:
178056
AF XY:
0.0000307
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000352
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000814
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000656
AC:
93
AN:
1418022
Hom.:
0
Cov.:
31
AF XY:
0.0000612
AC XY:
43
AN XY:
702340
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32644
American (AMR)
AF:
0.0000253
AC:
1
AN:
39500
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25504
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37546
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81796
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45508
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5730
European-Non Finnish (NFE)
AF:
0.0000834
AC:
91
AN:
1091022
Other (OTH)
AF:
0.0000170
AC:
1
AN:
58772
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
7
14
21
28
35
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152266
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74390
show subpopulations
African (AFR)
AF:
0.0000723
AC:
3
AN:
41478
American (AMR)
AF:
0.000131
AC:
2
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68052
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000893
Hom.:
0
Bravo
AF:
0.0000567
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000119
AC:
1
ExAC
AF:
0.0000424
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 27, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.577C>G (p.L193V) alteration is located in exon 3 (coding exon 2) of the FBXL8 gene. This alteration results from a C to G substitution at nucleotide position 577, causing the leucine (L) at amino acid position 193 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.059
T;T
Eigen
Benign
-0.53
Eigen_PC
Benign
-0.56
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.62
.;T
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.11
T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
2.0
M;M
PhyloP100
0.39
PrimateAI
Uncertain
0.61
T
PROVEAN
Uncertain
-2.4
N;N
REVEL
Benign
0.094
Sift
Benign
0.033
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.13
B;B
Vest4
0.38
MVP
0.41
MPC
1.3
ClinPred
0.14
T
GERP RS
2.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.15
gMVP
0.57
Mutation Taster
=87/13
polymorphism

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

Other links and lift over

dbSNP: rs369684413; hg19: chr16-67197175; API