6-98874275-A-G

Position:

• chr6-98874275-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_001278716.2(FBXL4):​c.*3T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00297 in 1,576,458 control chromosomes in the GnomAD database, including 116 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.016 (61 hom., cov: 32)
  • Exomes 𝑓: 0.0015 (55 hom.)
• Consequence: FBXL4 NM_001278716.2 3_prime_UTR
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: 1.17

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]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.77).
• BP6: Variant 6-98874275-A-G is Benign according to our data. Variant chr6-98874275-A-G is described in ClinVar as [Benign]. Clinvar id is 381422.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-98874275-A-G is described in Lovd as [Benign].
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0547 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FBXL4	NM_001278716.2	c.*3T>C		3_prime_UTR_variant	10/10	ENST00000369244.7	NP_001265645.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FBXL4	ENST00000369244.7	c.*3T>C		3_prime_UTR_variant	10/10	1	NM_001278716.2	ENSP00000358247	P1
FBXL4	ENST00000229971.2	c.*3T>C		3_prime_UTR_variant	9/9	1		ENSP00000229971	P1

Frequencies

GnomAD3 genomes AF: 0.0163 AC: 2481 AN: 152184 Hom.: 61 Cov.: 32

Gnomad AFR AF: 0.0566

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00668

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.0124

GnomAD3 exomes AF: 0.00419 AC: 931 AN: 222224 Hom.: 18 AF XY: 0.00301 AC XY: 365 AN XY: 121226

Gnomad AFR exome AF: 0.0556

Gnomad AMR exome AF: 0.00276

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: 0.0000942

Gnomad OTH exome AF: 0.00172

GnomAD4 exome AF: 0.00154 AC: 2197 AN: 1424156 Hom.: 55 Cov.: 30 AF XY: 0.00134 AC XY: 948 AN XY: 707466

Gnomad4 AFR exome AF: 0.0577

Gnomad4 AMR exome AF: 0.00378

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000636

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000373

Gnomad4 OTH exome AF: 0.00379

GnomAD4 genome AF: 0.0163 AC: 2486 AN: 152302 Hom.: 61 Cov.: 32 AF XY: 0.0159 AC XY: 1185 AN XY: 74488

Gnomad4 AFR AF: 0.0566

Gnomad4 AMR AF: 0.00667

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000414

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000735

Gnomad4 OTH AF: 0.0123

Alfa AF: 0.00758 Hom.: 12

Bravo AF: 0.0192

Asia WGS AF: 0.00231 AC: 8 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Mitochondrial DNA depletion syndrome 13 Benign:2

Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Nov 22, 2023	- -
Benign, criteria provided, single submitter	reference population	Wong Mito Lab, Molecular and Human Genetics, Baylor College of Medicine	Aug 10, 2017	The NM_012160.4:c.*3T>C () [GRCH38: NC_000006.12:g.98874275A>G] variant in FBXL4 gene is interpretated to be a Benign - Stand Alone based on ACMG guidelines (PMID: 25741868). This variant meets one or more of the following evidence codes reported in the ACMG-guideline. BA1:Minor allele frequency is too high for the Mitochondrial DNA depletion syndrome 13. BS2:Observation of the variant is in controls is inconsistent with penetrance of Mitochondrial DNA depletion syndrome 13. BP4:Computational evidence/predictors indicate no impact on the FBXL4 structure, function, or protein-protein interaction. Based on this evidence code ClinGen Pathogenicity Calculator (PMID:28081714) suggested that the variant is Benign - Stand Alone. -

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Feb 11, 2016

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.77
CADD	Benign	1.3
DANN	Benign	0.85
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

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

Other links and lift over

dbSNP: rs115180578; hg19: chr6-99322151;