16-87334108-C-G

Variant names:

• chr16-87334108-C-G
• rs569627106
• NM_024735.5:c.1175G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_024735.5(FBXO31):​c.1175G>C​(p.Arg392Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,906 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R392H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: FBXO31 NM_024735.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0870
• Publications: 0 publications found

Genes affected

FBXO31 (HGNC:16510): (F-box protein 31) This gene is a member of the F-box family. Members are classified into three classes according to the substrate interaction domain, FBW for WD40 repeats, FBL for leucing-rich repeats, and FBXO for other domains. This protein, classified into the last category because of the lack of a recognizable substrate binding domain, has been proposed to be a component of the SCF ubiquitination complex. It is thought to bind and recruit substrate for ubiquitination and degradation. This protein may have a role in regulating the cell cycle as well as dendrite growth and neuronal migration. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

FBXO31 Gene-Disease associations (from GenCC):

• autosomal recessive non-syndromic intellectual disability

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• cerebral palsy

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• intellectual disability, autosomal recessive

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics
• intellectual disability, autosomal recessive 45

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ENSG00000131152 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.082615435).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024735.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FBXO31	NM_024735.5	MANE Select	c.1175G>C	p.Arg392Pro	missense	Exon 8 of 9	NP_079011.3
	FBXO31	NM_001282683.2		c.659G>C	p.Arg220Pro	missense	Exon 9 of 10	NP_001269612.1	A0A0C4DGU8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FBXO31	ENST00000311635.12	TSL:1 MANE Select	c.1175G>C	p.Arg392Pro	missense	Exon 8 of 9	ENSP00000310841.4	Q5XUX0-1
	ENSG00000131152	ENST00000568879.1	TSL:4	c.164G>C	p.Arg55Pro	missense	Exon 1 of 5	ENSP00000454386.1	H3BMH7
	FBXO31	ENST00000636077.2	TSL:5	c.1262G>C	p.Arg421Pro	missense	Exon 9 of 10	ENSP00000490402.2	A0A1B0GV77

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1457906 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 724982

African (AFR) AF: 0.0000300 AC: 1 AN: 33388

American (AMR) AF: 0.00 AC: 0 AN: 44526

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25978

East Asian (EAS) AF: 0.00 AC: 0 AN: 39614

South Asian (SAS) AF: 0.00 AC: 0 AN: 86040

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51996

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5734

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1110426

Other (OTH) AF: 0.00 AC: 0 AN: 60204

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.072
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	5.8
DANN	Benign	0.85
DEOGEN2	Benign	0.060	T
Eigen	Benign	-1.5
Eigen_PC	Benign	-1.6
FATHMM_MKL	Benign	0.16	N
LIST_S2	Benign	0.68	T
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.083	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.42	N
PhyloP100		0.087
PrimateAI	Uncertain	0.57	T
PROVEAN	Benign	0.030	N
REVEL	Benign	0.056
Sift	Benign	0.26	T
Sift4G	Benign	0.27	T
Polyphen		0.23	B
Vest4		0.10
MutPred		0.20		Loss of methylation at R392 (P = 0.0165)
MVP		0.53
MPC		1.2
ClinPred		0.10	T
GERP RS		-7.8
PromoterAI		-0.014	Neutral
Varity_R		0.076
gMVP		0.45
Mutation Taster		=93/7	polymorphism

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

Other links and lift over

dbSNP: rs569627106; hg19: chr16-87367714;