7-5500935-G-C

Variant summary

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

The NM_024963.6(FBXL18):​c.1334C>G​(p.Pro445Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000773 in 1,551,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000079 ( 0 hom. )

Consequence

FBXL18
NM_024963.6 missense

Scores

2
1
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.13

Publications

0 publications found
Variant links:
Genes affected
FBXL18 (HGNC:21874): (F-box and leucine rich repeat protein 18) The protein encoded by this gene is a member of a family of proteins that contain an approximately 40-amino acid F-box motif. This motif is important for interaction with SKP1 and for targeting some proteins for degradation. The encoded protein has been shown to control the cellular level of FBXL7, a protein that induces mitotic arrest, by targeting it for polyubiquitylation and proteasomal degradation. Members of the F-box protein family, such as FBXL18, are characterized by an approximately 40-amino acid F-box motif. F-box proteins interact with SKP1 through the F box, and they interact with ubiquitination targets through other protein interaction domains. [provided by RefSeq, Mar 2016]

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=0.25483212).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FBXL18NM_024963.6 linkc.1334C>G p.Pro445Arg missense_variant Exon 3 of 5 ENST00000382368.8 NP_079239.3 Q96ME1-4Q96D16

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FBXL18ENST00000382368.8 linkc.1334C>G p.Pro445Arg missense_variant Exon 3 of 5 5 NM_024963.6 ENSP00000371805.3 Q96ME1-4
FBXL18ENST00000458142.1 linkc.983C>G p.Pro328Arg missense_variant Exon 1 of 3 2 ENSP00000405896.1 A0A994ENR3
FBXL18ENST00000415009.5 linkn.1334C>G non_coding_transcript_exon_variant Exon 3 of 7 2 ENSP00000415064.1 Q96ME1-2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152202
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
GnomAD2 exomes
AF:
0.0000230
AC:
4
AN:
173802
AF XY:
0.0000313
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000254
Gnomad OTH exome
AF:
0.000464
GnomAD4 exome
AF:
0.00000786
AC:
11
AN:
1399562
Hom.:
0
Cov.:
30
AF XY:
0.00000434
AC XY:
3
AN XY:
690956
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31612
American (AMR)
AF:
0.00
AC:
0
AN:
33670
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
22702
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38852
South Asian (SAS)
AF:
0.00
AC:
0
AN:
77346
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48326
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5516
European-Non Finnish (NFE)
AF:
0.0000101
AC:
11
AN:
1083852
Other (OTH)
AF:
0.00
AC:
0
AN:
57686
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152202
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15278
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:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jan 21, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1334C>G (p.P445R) alteration is located in exon 3 (coding exon 3) of the FBXL18 gene. This alteration results from a C to G substitution at nucleotide position 1334, causing the proline (P) at amino acid position 445 to be replaced by an arginine (R). 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
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.087
.;T
Eigen
Benign
-0.13
Eigen_PC
Benign
-0.14
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.76
T;T
M_CAP
Benign
0.043
D
MetaRNN
Benign
0.25
T;T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
1.6
L;.
PhyloP100
3.1
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
-1.9
N;.
REVEL
Benign
0.12
Sift
Benign
0.29
T;.
Sift4G
Benign
0.064
T;.
Polyphen
0.18
B;.
Vest4
0.29
MutPred
0.40
Gain of helix (P = 0.0034);.;
MVP
0.72
MPC
1.1
ClinPred
0.30
T
GERP RS
4.5
gMVP
0.53
Mutation Taster
=83/17
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: rs765326368; hg19: chr7-5540566; API