rs1060501253

Variant names:

• chr11-32428030-CG-C
• rs1060501253
• NM_024426.6:c.812delC

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_024426.6(WT1):​c.812delC​(p.Pro271ArgfsTer20) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,457,446 control chromosomes in the GnomAD database, with no homozygous occurrence. There is a variant allele frequency bias in the population database for this variant (GnomAdExome4), which may indicate mosaicism or somatic mutations in the reference population data. Variant has been reported in ClinVar as Pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. P271P) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: WT1 NM_024426.6 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 9.19
• Publications: 1 publications found

Genes affected

WT1 (HGNC:12796): (WT1 transcription factor) This gene encodes a transcription factor that contains four zinc-finger motifs at the C-terminus and a proline/glutamine-rich DNA-binding domain at the N-terminus. It has an essential role in the normal development of the urogenital system, and it is mutated in a small subset of patients with Wilms tumor. This gene exhibits complex tissue-specific and polymorphic imprinting pattern, with biallelic, and monoallelic expression from the maternal and paternal alleles in different tissues. Multiple transcript variants have been described. In several variants, there is evidence for the use of a non-AUG (CUG) translation initiation codon upstream of, and in-frame with the first AUG. Authors of PMID:7926762 also provide evidence that WT1 mRNA undergoes RNA editing in human and rat, and that this process is tissue-restricted and developmentally regulated. [provided by RefSeq, Mar 2015]

WT1 Gene-Disease associations (from GenCC):

• Denys-Drash syndrome

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, G2P
• Wilms tumor 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen
• familial idiopathic steroid-resistant nephrotic syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Frasier syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 12 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 11-32428030-CG-C is Pathogenic according to our data. Variant chr11-32428030-CG-C is described in ClinVar as Pathogenic. ClinVar VariationId is 406680.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024426.6. 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
	WT1	NM_024426.6	MANE Select	c.812delC	p.Pro271ArgfsTer20	frameshift	Exon 3 of 10	NP_077744.4
	WT1	NM_024424.5		c.812delC	p.Pro271ArgfsTer20	frameshift	Exon 3 of 10	NP_077742.3	H0Y7K5
	WT1	NM_001407044.1		c.812delC	p.Pro271ArgfsTer20	frameshift	Exon 3 of 10	NP_001393973.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WT1	ENST00000452863.10	TSL:1 MANE Select	c.812delC	p.Pro271ArgfsTer20	frameshift	Exon 3 of 10	ENSP00000415516.5	P19544-7
	WT1	ENST00000639563.4	TSL:1	c.812delC	p.Pro271ArgfsTer20	frameshift	Exon 3 of 9	ENSP00000492269.3	P19544-8
	WT1	ENST00000332351.9	TSL:1	c.812delC	p.Pro271ArgfsTer20	frameshift	Exon 3 of 9	ENSP00000331327.5	J3KNN9

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000343 AC: 5 AN: 1457446 Hom.: 0 Cov.: 32 AF XY: 0.00000552 AC XY: 4 AN XY: 724510

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33412

American (AMR) AF: 0.00 AC: 0 AN: 44474

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

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39606

South Asian (SAS) AF: 0.00 AC: 0 AN: 85812

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52900

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5520

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1109650

Other (OTH) AF: 0.00 AC: 0 AN: 60094

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	11p partial monosomy syndrome;C0950121:Drash syndrome;C0950122:Frasier syndrome;CN033288:Wilms tumor 1 (1)
1	-	-	Drash syndrome;C0950122:Frasier syndrome;CN033288:Wilms tumor 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		9.2
Mutation Taster		=0/200	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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs1060501253;

hg19: chr11-32449576;