rs369833842

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_205836.3(FBXO38):​c.1757G>A​(p.Arg586His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,613,216 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R586C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

FBXO38
NM_205836.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.87

Publications

3 publications found
Variant links:
Genes affected
FBXO38 (HGNC:28844): (F-box protein 38) This gene encodes a large protein that contains an F-box domain and may participate in protein ubiquitination. The encoded protein is a transcriptional co-activator of Krueppel-like factor 7 (Klf7). A heterozygous mutation in this gene was found in individuals with autosomal dominant distal hereditary motor neuronopathy type IID. There is a pseudogene for this gene on chromosome 4. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]
FBXO38 Gene-Disease associations (from GenCC):
  • neuronopathy, distal hereditary motor, type 2D
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • distal hereditary motor neuropathy
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • distal hereditary motor neuropathy type 2
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14787936).
BS2
High AC in GnomAdExome4 at 29 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FBXO38NM_205836.3 linkc.1757G>A p.Arg586His missense_variant Exon 14 of 22 ENST00000340253.10 NP_995308.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FBXO38ENST00000340253.10 linkc.1757G>A p.Arg586His missense_variant Exon 14 of 22 5 NM_205836.3 ENSP00000342023.6 Q6PIJ6-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152068
Hom.:
0
Cov.:
32
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:
0.0000945
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
250942
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000198
AC:
29
AN:
1461148
Hom.:
0
Cov.:
29
AF XY:
0.0000138
AC XY:
10
AN XY:
726892
show subpopulations
African (AFR)
AF:
0.000179
AC:
6
AN:
33458
American (AMR)
AF:
0.0000448
AC:
2
AN:
44690
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26114
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39692
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86198
European-Finnish (FIN)
AF:
0.0000374
AC:
2
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1111446
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.0000132
AC:
2
AN:
152068
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74268
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41378
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.0000945
AC:
1
AN:
10580
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

Distal hereditary motor neuropathy type 2 Uncertain:1
Nov 19, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 586 of the FBXO38 protein (p.Arg586His). This variant is present in population databases (rs369833842, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with FBXO38-related conditions. ClinVar contains an entry for this variant (Variation ID: 1365448). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt FBXO38 protein function with a negative predictive value of 80%. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.40
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.034
.;T;.;.
Eigen
Uncertain
0.21
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Uncertain
0.94
D;D;D;.
M_CAP
Benign
0.0083
T
MetaRNN
Benign
0.15
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.69
N;N;N;N
PhyloP100
1.9
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-0.67
N;N;N;N
REVEL
Benign
0.098
Sift
Benign
0.057
T;T;T;T
Sift4G
Benign
0.15
T;T;T;T
Polyphen
0.99
D;P;P;D
Vest4
0.23
MutPred
0.49
Loss of catalytic residue at R586 (P = 0.0895);Loss of catalytic residue at R586 (P = 0.0895);Loss of catalytic residue at R586 (P = 0.0895);Loss of catalytic residue at R586 (P = 0.0895);
MVP
0.18
MPC
0.60
ClinPred
0.70
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.061
gMVP
0.098
Mutation Taster
=91/9
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs369833842; hg19: chr5-147805103; COSMIC: COSV57031450; COSMIC: COSV57031450; API