chr17-37744838-AG-A

Variant names:

• chr17-37744838-AG-A
• rs587776771
• NM_000458.4:c.46delC

Variant summary

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

The NM_000458.4(HNF1B):​c.46delC​(p.Leu16CysfsTer2) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: HNF1B NM_000458.4 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 4.07
• Publications: 3 publications found

Genes affected

HNF1B (HGNC:11630): (HNF1 homeobox B) This gene encodes a member of the homeodomain-containing superfamily of transcription factors. The protein binds to DNA as either a homodimer, or a heterodimer with the related protein hepatocyte nuclear factor 1-alpha. The gene has been shown to function in nephron development, and regulates development of the embryonic pancreas. Mutations in this gene result in renal cysts and diabetes syndrome and noninsulin-dependent diabetes mellitus, and expression of this gene is altered in some types of cancer. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]

HNF1B Gene-Disease associations (from GenCC):

• renal cysts and diabetes syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, Orphanet, ClinGen
• diabetes mellitus, noninsulin-dependent

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• permanent neonatal diabetes mellitus

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• transient neonatal diabetes mellitus

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• medullary sponge kidney

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• renal dysplasia, bilateral

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• renal dysplasia, unilateral

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• renal hypomagnesemia 2

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• unilateral multicystic dysplastic kidney

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 254 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 17-37744838-AG-A is Pathogenic according to our data. Variant chr17-37744838-AG-A is described in ClinVar as Pathogenic. ClinVar VariationId is 12648.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000458.4. 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
	HNF1B	NM_000458.4	MANE Select	c.46delC	p.Leu16CysfsTer2	frameshift	Exon 1 of 9	NP_000449.1	P35680-1
	HNF1B	NM_001411100.1		c.46delC	p.Leu16CysfsTer2	frameshift	Exon 1 of 8	NP_001398029.1	A0A087WZC2
	HNF1B	NM_001165923.4		c.46delC	p.Leu16CysfsTer2	frameshift	Exon 1 of 9	NP_001159395.1	E0YMJ6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HNF1B	ENST00000617811.5	TSL:1 MANE Select	c.46delC	p.Leu16CysfsTer2	frameshift	Exon 1 of 9	ENSP00000480291.1	P35680-1
	HNF1B	ENST00000621123.4	TSL:1	c.46delC	p.Leu16CysfsTer2	frameshift	Exon 1 of 9	ENSP00000482711.1	P35680-2
	HNF1B	ENST00000613727.4	TSL:1	c.46delC	p.Leu16CysfsTer2	frameshift	Exon 1 of 7	ENSP00000477524.1	A0A0C4DGS8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Chromophobe renal cell carcinoma (1)
1	-	-	Renal cysts and diabetes syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		4.1
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

Other links and lift over

dbSNP: rs587776771; hg19: chr17-36104829;