rs550138374

Positions:

chr5-148442019-A-G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_205836.3(FBXO38):c.3439A>G(p.Met1147Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000149 in 1,614,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

FBXO38
NM_205836.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 7.07

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), FBXO38. . Gene score misZ 2.8126 (greater than the threshold 3.09). Trascript score misZ 3.83 (greater than threshold 3.09). GenCC has associacion of gene with distal hereditary motor neuropathy type 2, neuronopathy, distal hereditary motor, type 2D, distal hereditary motor neuropathy.

BP4

Computational evidence support a benign effect (MetaRNN=0.13936138).

BS2

High AC in GnomAdExome4 at 20 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FBXO38	NM_205836.3 linkuse as main transcript	c.3439A>G	p.Met1147Val	missense_variant	22/22	ENST00000340253.10	NP_995308.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
FBXO38	ENST00000340253.10 linkuse as main transcript	c.3439A>G	p.Met1147Val	missense_variant	22/22	5	NM_205836.3	ENSP00000342023.6	Q6PIJ6-1
FBXO38	ENST00000394370.7 linkuse as main transcript	c.3214A>G	p.Met1072Val	missense_variant	22/22	1		ENSP00000377895.3	Q6PIJ6-2
FBXO38	ENST00000513826.1 linkuse as main transcript	c.2704A>G	p.Met902Val	missense_variant	20/20	1		ENSP00000426410.1	Q6PIJ6-3
FBXO38	ENST00000296701.10 linkuse as main transcript	c.2704A>G	p.Met902Val	missense_variant	21/21	2		ENSP00000296701.6	Q6PIJ6-3

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152266

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000438

AC:

AN:

251084

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135688

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1461802

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727216

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000268

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152266

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74398

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Distal hereditary motor neuropathy type 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 14, 2023

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. This variant has not been reported in the literature in individuals affected with FBXO38-related conditions. This missense change has been observed in at least one individual who was not affected with FBXO38-related conditions (Invitae). ClinVar contains an entry for this variant (Variation ID: 576603). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C15"). This variant is present in population databases (rs550138374, gnomAD 0.03%). This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1072 of the FBXO38 protein (p.Met1072Val). -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Mar 30, 2023

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; Variants in candidate genes are classified as variants of uncertain significance in accordance with ACMG guidelines (Richards et al., 2015) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.93

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.30

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.20

.;T;.;.

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D;D;.

M_CAP

Benign

0.013

MetaRNN

Benign

0.14

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.90

.;L;.;.

PrimateAI

Pathogenic

0.79

PROVEAN

Uncertain

-2.6

D;D;D;D

REVEL

Benign

0.13

Sift

Benign

0.13

T;D;D;T

Sift4G

Benign

0.11

T;T;T;T

Polyphen

0.0

B;D;P;B

Vest4

0.53

MutPred

0.25

.;Gain of sheet (P = 0.0061);.;.;

MVP

0.23

MPC

1.6

ClinPred

0.28

GERP RS

4.0

Varity_R

0.37

gMVP

0.91

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over