rs587776899

Variant names:

• chr19-36104604-C-CT
• rs587776899
• NM_001083961.2:c.4241dupT

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_001083961.2(WDR62):​c.4241dupT​(p.Ser1415GlufsTer40) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,758 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. L1414L) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: WDR62 NM_001083961.2 frameshift
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 2.31
• Publications: 8 publications found

Genes affected

WDR62 (HGNC:24502): (WD repeat domain 62) This gene is proposed to play a role in cerebral cortical development. Mutations in this gene have been associated with microencephaly, cortical malformations, and cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2011]

WDR62 Gene-Disease associations (from GenCC):

• microcephaly 2, primary, autosomal recessive, with or without cortical malformations

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Ambry Genetics, Laboratory for Molecular Medicine, G2P, ClinGen
• autosomal recessive primary microcephaly

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 19-36104604-C-CT is Pathogenic according to our data. Variant chr19-36104604-C-CT is described in ClinVar as Pathogenic. ClinVar VariationId is 31036.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001083961.2. 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
	WDR62	NM_001083961.2	MANE Select	c.4241dupT	p.Ser1415GlufsTer40	frameshift	Exon 31 of 32	NP_001077430.1	O43379-4
	WDR62	NM_001411145.1		c.4226dupT	p.Ser1410GlufsTer40	frameshift	Exon 31 of 32	NP_001398074.1	A0A7P0TAK3
	WDR62	NM_173636.5		c.4226dupT	p.Ser1410GlufsTer40	frameshift	Exon 31 of 32	NP_775907.4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WDR62	ENST00000401500.7	TSL:1 MANE Select	c.4241dupT	p.Ser1415GlufsTer40	frameshift	Exon 31 of 32	ENSP00000384792.1	O43379-4
	WDR62	ENST00000587391.6	TSL:1	n.*4101dupT		non_coding_transcript_exon	Exon 29 of 30	ENSP00000465525.1	O43379-2
	WDR62	ENST00000587391.6	TSL:1	n.*4101dupT		3_prime_UTR	Exon 29 of 30	ENSP00000465525.1	O43379-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461758 Hom.: 0 Cov.: 34 AF XY: 0.00000413 AC XY: 3 AN XY: 727194

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53298

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112008

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Microcephaly 2, primary, autosomal recessive, with or without cortical malformations (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.3
Mutation Taster		=7/193	disease causing (ClinVar)

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: rs587776899; hg19: chr19-36595506;