rs373082610

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_205836.3(FBXO38):c.3536A>G(p.Asn1179Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000477 in 1,613,906 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000049 ( 1 hom. )

Consequence

FBXO38
NM_205836.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.02

Publications

4 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

FBXO38 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.053115845).

BS2

High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FBXO38	NM_205836.3 link	c.3536A>G	p.Asn1179Ser	missense_variant	Exon 22 of 22	ENST00000340253.10	NP_995308.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FBXO38	ENST00000340253.10 link	c.3536A>G	p.Asn1179Ser	missense_variant	Exon 22 of 22	5	NM_205836.3	ENSP00000342023.6	Q6PIJ6-1
FBXO38	ENST00000394370.7 link	c.3311A>G	p.Asn1104Ser	missense_variant	Exon 22 of 22	1		ENSP00000377895.3	Q6PIJ6-2
FBXO38	ENST00000513826.1 link	c.2801A>G	p.Asn934Ser	missense_variant	Exon 20 of 20	1		ENSP00000426410.1	Q6PIJ6-3
FBXO38	ENST00000296701.10 link	c.2801A>G	p.Asn934Ser	missense_variant	Exon 21 of 21	2		ENSP00000296701.6	Q6PIJ6-3

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000398

AC:

AN:

251008

AF XY:

0.0000516

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000870

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000529

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000486

AC:

AN:

1461682

Hom.:

Cov.:

AF XY:

0.0000468

AC XY:

AN XY:

727146

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33472

American (AMR)

AF:

0.0000895

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.0000756

AC:

AN:

39690

South Asian (SAS)

AF:

0.000128

AC:

AN:

86224

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000423

AC:

AN:

1111882

Other (OTH)

AF:

0.0000497

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000394

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74376

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41470

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68046

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000594

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 30, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.3536A>G (p.N1179S) alteration is located in exon 22 (coding exon 21) of the FBXO38 gene. This alteration results from a A to G substitution at nucleotide position 3536, causing the asparagine (N) at amino acid position 1179 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Distal hereditary motor neuropathy type 2

Uncertain:1

Jan 11, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 1104 of the FBXO38 protein (p.Asn1104Ser). This variant is present in population databases (rs373082610, gnomAD 0.006%). 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: 581498). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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

0.091

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.51

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.19

.;T;.;.

Eigen

Benign

-0.052

Eigen_PC

Benign

0.083

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.94

D;D;D;.

M_CAP

Benign

0.0087

MetaRNN

Benign

0.053

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

.;N;.;.

PhyloP100

4.0

PrimateAI

Uncertain

0.63

PROVEAN

Uncertain

-2.4

N;N;N;N

REVEL

Benign

0.082

Sift

Benign

0.33

T;T;T;T

Sift4G

Benign

0.37

T;T;T;T

Polyphen

0.027

B;P;P;B

Vest4

0.16

MVP

0.068

MPC

1.6

ClinPred

0.093

GERP RS

4.2

Varity_R

0.086

gMVP

0.060

Mutation Taster

=93/7

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over