dbSNP rs142853738: FBXL4:p.Thr27Ala (chr6-98926910-T-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 3P and 5B. PM2PP2BP4_StrongBP6

The NM_001278716.2(FBXL4):c.79A>G(p.Thr27Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000197 in 1,614,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

FBXL4
NM_001278716.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 0.525

Publications

1 publications found

Variant links:

Genes affected

FBXL4 (HGNC:13601): (F-box and leucine rich repeat protein 4) This gene encodes a member of the F-box protein family, which are characterized by an approximately 40 amino acid motif, the F-box. F-box proteins constitute one subunit of modular E3 ubiquitin ligase complexes, called SCF complexes, which function in phosphorylation-dependent ubiquitination. The F-box domain mediates protein-protein interactions and binds directly to S-phase kinase-associated protein 1. In addition to an F-box domain, the encoded protein contains at least 9 tandem leucine-rich repeats. The ubiquitin ligase complex containing the encoded protein may function in cell-cycle control by regulating levels of lysine-specific demethylase 4A. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

FBXL4 Gene-Disease associations (from GenCC):

Leigh syndrome
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
mitochondrial disease
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
mitochondrial DNA depletion syndrome 13
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P

FBXL4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 24 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 0.55467 (below the threshold of 3.09). Trascript score misZ: 1.2845 (below the threshold of 3.09). GenCC associations: The gene is linked to mitochondrial disease, mitochondrial DNA depletion syndrome 13, Leigh syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.0052059293).

BP6

Variant 6-98926910-T-C is Benign according to our data. Variant chr6-98926910-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 437531.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001278716.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FBXL4	NM_001278716.2	MANE Select	c.79A>G	p.Thr27Ala	missense	Exon 4 of 10	NP_001265645.1	Q9UKA2
FBXL4	NM_012160.5		c.79A>G	p.Thr27Ala	missense	Exon 3 of 9	NP_036292.2
FBXL4	NR_103836.2		n.410A>G		non_coding_transcript_exon	Exon 3 of 8

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FBXL4	ENST00000369244.7	TSL:1 MANE Select	c.79A>G	p.Thr27Ala	missense	Exon 4 of 10	ENSP00000358247.1	Q9UKA2
FBXL4	ENST00000229971.2	TSL:1	c.79A>G	p.Thr27Ala	missense	Exon 3 of 9	ENSP00000229971.1	Q9UKA2
FBXL4	ENST00000892543.1		c.79A>G	p.Thr27Ala	missense	Exon 4 of 10	ENSP00000562602.1

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00692

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000402

AC:

101

AN:

251348

AF XY:

0.000434

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00824

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000194

AC:

283

AN:

1461864

Hom.:

Cov.:

AF XY:

0.000219

AC XY:

159

AN XY:

727232

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.0000447

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00769

AC:

201

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000288

AC:

AN:

1111988

Other (OTH)

AF:

0.000778

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

102

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:

0.000230

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74376

show subpopulations

African (AFR)

AF:

0.0000965

AC:

AN:

41466

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00692

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68040

Other (OTH)

AF:

0.000478

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.514

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:

0.00185

Hom.:

Bravo

AF:

0.000223

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000296

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Inborn genetic diseases (1)

Mitochondrial DNA depletion syndrome 13 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.53

BayesDel_noAF

Benign

-0.78

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.032

Eigen

Benign

-0.63

Eigen_PC

Benign

-0.58

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.60

M_CAP

Benign

0.0025

MetaRNN

Benign

0.0052

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

PhyloP100

0.53

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.44

REVEL

Benign

0.053

Sift

Benign

0.089

Sift4G

Benign

0.085

Polyphen

0.0

Vest4

0.076

MVP

0.22

MPC

0.065

ClinPred

0.020

GERP RS

-5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.033

gMVP

0.64

Mutation Taster

=81/19

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over