chr4-84796747-T-G

Position:

• chr4-84796747-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_014991.6(WDFY3):​c.2941A>C​(p.Met981Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000131 in 152,222 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency: Genomes: 𝑓 0.000013 (0 hom., cov: 33)
• Consequence: WDFY3 NM_014991.6 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 3.90

Genes affected

WDFY3 (HGNC:20751): (WD repeat and FYVE domain containing 3) This gene encodes a phosphatidylinositol 3-phosphate-binding protein that functions as a master conductor for aggregate clearance by autophagy. This protein shuttles from the nuclear membrane to colocalize with aggregated proteins, where it complexes with other autophagic components to achieve macroautophagy-mediated clearance of these aggregated proteins. However, it is not necessary for starvation-induced macroautophagy. [provided by RefSeq, May 2010]

WDFY3-AS1 (HGNC:40935): (WDFY3 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), WDFY3. . Gene score misZ 5.8174 (greater than the threshold 3.09). Trascript score misZ 7.6797 (greater than threshold 3.09). GenCC has associacion of gene with syndromic intellectual disability, complex neurodevelopmental disorder, autism spectrum disorder.
• BP4: Computational evidence support a benign effect (MetaRNN=0.07176134).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WDFY3	NM_014991.6	c.2941A>C	p.Met981Leu	missense_variant	19/68	ENST00000295888.9
WDFY3-AS1	NR_046707.1	n.83T>G		non_coding_transcript_exon_variant	1/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WDFY3	ENST00000295888.9	c.2941A>C	p.Met981Leu	missense_variant	19/68	1	NM_014991.6	P1
WDFY3-AS1	ENST00000510449.2	n.134T>G		non_coding_transcript_exon_variant	1/3	3
WDFY3	ENST00000514711.2	c.1477A>C	p.Met493Leu	missense_variant	9/57	2

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152222 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

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

GnomAD4 exome Cov.: 29

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152222 Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2 AN XY: 74364

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.0000654

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

Bravo AF: 0.0000264

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 12, 2024

The c.2941A>C (p.M981L) alteration is located in exon 19 (coding exon 16) of the WDFY3 gene. This alteration results from a A to C substitution at nucleotide position 2941, causing the methionine (M) at amino acid position 981 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Aug 21, 2019

Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.082
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	18
DANN	Benign	0.67
DEOGEN2	Benign	0.021	T
Eigen	Benign	-0.68
Eigen_PC	Benign	-0.49
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Benign	0.79	T
M_CAP	Benign	0.0032	T
MetaRNN	Benign	0.072	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.34	N
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	-0.73	N
REVEL	Benign	0.13
Sift	Benign	0.62	T
Sift4G	Benign	0.80	T
Polyphen		0.0	B
Vest4		0.24
MutPred		0.32		Loss of disorder (P = 0.114);
MVP		0.043
MPC		0.38
ClinPred		0.34	T
GERP RS		-0.31
Varity_R		0.15
gMVP		0.49

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: rs947768947; hg19: chr4-85717900;