rs766194496

Variant names:

• chr21-42850073-C-G
• rs766194496
• NM_018669.6:c.1215G>C

Your query was ambiguous. Multiple possible variants found:

• chr21-42850073-C-G
• chr21-42850073-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_018669.6(WDR4):​c.1215G>C​(p.Pro405Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000239 in 1,461,714 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P405P) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.000024 (0 hom.)
• Consequence: WDR4 NM_018669.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -5.99

Genes affected

WDR4 (HGNC:12756): (WD repeat domain 4) This gene encodes a member of the WD repeat protein family. WD repeats are minimally conserved regions of approximately 40 amino acids typically bracketed by gly-his and trp-asp (GH-WD), which may facilitate formation of heterotrimeric or multiprotein complexes. Members of this family are involved in a variety of cellular processes, including cell cycle progression, signal transduction, apoptosis, and gene regulation. This gene is excluded as a candidate for a form of nonsyndromic deafness (DFNB10), but is still a candidate for other disorders mapped to 21q22.3 as well as for the development of Down syndrome phenotypes. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, May 2012]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP7: Synonymous conserved (PhyloP=-5.99 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR4	NM_018669.6	c.1215G>C	p.Pro405Pro	synonymous_variant	Exon 11 of 11	ENST00000398208.3	NP_061139.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDR4	ENST00000398208.3	c.1215G>C	p.Pro405Pro	synonymous_variant	Exon 11 of 11	1	NM_018669.6	ENSP00000381266.2
WDR4	ENST00000330317.6	c.1215G>C	p.Pro405Pro	synonymous_variant	Exon 11 of 12	1		ENSP00000328671.2
WDR4	ENST00000476326.5	n.1130G>C		non_coding_transcript_exon_variant	Exon 11 of 11	1
WDR4	ENST00000492742.5	n.1358G>C		non_coding_transcript_exon_variant	Exon 11 of 11	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.0000239 AC: 35 AN: 1461714 Hom.: 0 Cov.: 30 AF XY: 0.0000220 AC XY: 16 AN XY: 727166

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

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: 0.0000315

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.043
DANN	Benign	0.53

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: rs766194496; hg19: chr21-44270183;