chr4-174263028-T-G

Position:

chr4-174263028-T-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_012180.3(FBXO8):c.65A>C(p.Gln22Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,613,918 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

FBXO8
NM_012180.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.69

Variant links:

Genes affected

FBXO8 (HGNC:13587): (F-box 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 Fbxs class. It contains a C-terminal amino acid sequence that bears a significant similarity with a portion of yeast Sec7p, a critical regulator of vesicular protein transport. This human protein may interact with ADP-ribosylation factor(s)(ARFs) and exhibit ARF-GEF (guanine nucleotide exchange factor) activity. [provided by RefSeq, Jul 2008]

FBXO8 links:

FBXO8 (HGNC:):

FBXO8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.020033896).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FBXO8	NM_012180.3 linkuse as main transcript	c.65A>C	p.Gln22Pro	missense_variant	2/6	ENST00000393674.7	NP_036312.2	Q9NRD0-1A0A0S2Z5D1Q8IXA8
FBXO8	XM_047450062.1 linkuse as main transcript	c.65A>C	p.Gln22Pro	missense_variant	1/3		XP_047306018.1
FBXO8	XR_007096390.1 linkuse as main transcript	n.73A>C		non_coding_transcript_exon_variant	1/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FBXO8	ENST00000393674.7 linkuse as main transcript	c.65A>C	p.Gln22Pro	missense_variant	2/6	1	NM_012180.3	ENSP00000377280.2		Q9NRD0-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000135

AC:

AN:

251286

Hom.:

AF XY:

0.000110

AC XY:

AN XY:

135812

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000957

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:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000253

AC:

AN:

1461732

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727164

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000783

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:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000844

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.000148

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 25, 2024

The c.65A>C (p.Q22P) alteration is located in exon 2 (coding exon 1) of the FBXO8 gene. This alteration results from a A to C substitution at nucleotide position 65, causing the glutamine (Q) at amino acid position 22 to be replaced by a proline (P). 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

0.069

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.056

.;T;.;T

Eigen

Benign

-0.53

Eigen_PC

Benign

-0.42

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.75

T;T;.;T

M_CAP

Benign

0.0073

MetaRNN

Benign

0.020

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.1

L;L;L;.

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.060

.;N;N;N

REVEL

Benign

0.043

Sift

Benign

0.059

.;T;T;T

Sift4G

Benign

0.10

T;T;T;T

Polyphen

0.021

.;B;.;.

Vest4

0.23

MutPred

0.12

Gain of glycosylation at Y24 (P = 0.0092);Gain of glycosylation at Y24 (P = 0.0092);Gain of glycosylation at Y24 (P = 0.0092);Gain of glycosylation at Y24 (P = 0.0092);

MVP

0.23

MPC

0.73

ClinPred

0.041

GERP RS

1.9

Varity_R

0.078

gMVP

0.58

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

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