NM_000458.4:c.1340-1276T>C

Variant names:

• chr17-37702453-A-G
• rs1008284
• NM_000458.4:c.1340-1276T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000458.4(HNF1B):​c.1340-1276T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.769 in 151,998 control chromosomes in the GnomAD database, including 45,071 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.77 (45071 hom., cov: 30)
• Consequence: HNF1B NM_000458.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.771
• Publications: 6 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: G2P, Orphanet, ClinGen, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• 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: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.806 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HNF1B	NM_000458.4	c.1340-1276T>C		intron_variant	Intron 6 of 8	ENST00000617811.5	NP_000449.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HNF1B	ENST00000617811.5	c.1340-1276T>C		intron_variant	Intron 6 of 8	1	NM_000458.4	ENSP00000480291.1
HNF1B	ENST00000621123.4	c.1262-1276T>C		intron_variant	Intron 6 of 8	1		ENSP00000482711.1
HNF1B	ENST00000613727.4	c.1261+2464T>C		intron_variant	Intron 6 of 6	1		ENSP00000477524.1
HNF1B	ENST00000614313.4	c.1340-1276T>C		intron_variant	Intron 6 of 7	5		ENSP00000482529.1

Frequencies

GnomAD3 genomes AF: 0.769 AC: 116851 AN: 151880 Hom.: 45047 Cov.: 30

Gnomad AFR AF: 0.813

Gnomad AMI AF: 0.848

Gnomad AMR AF: 0.691

Gnomad ASJ AF: 0.766

Gnomad EAS AF: 0.745

Gnomad SAS AF: 0.746

Gnomad FIN AF: 0.756

Gnomad MID AF: 0.715

Gnomad NFE AF: 0.765

Gnomad OTH AF: 0.765

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.769 AC: 116917 AN: 151998 Hom.: 45071 Cov.: 30 AF XY: 0.767 AC XY: 56936 AN XY: 74270

African (AFR) AF: 0.813 AC: 33712 AN: 41460

American (AMR) AF: 0.691 AC: 10561 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.766 AC: 2658 AN: 3468

East Asian (EAS) AF: 0.745 AC: 3841 AN: 5154

South Asian (SAS) AF: 0.746 AC: 3580 AN: 4802

European-Finnish (FIN) AF: 0.756 AC: 7983 AN: 10560

Middle Eastern (MID) AF: 0.718 AC: 211 AN: 294

European-Non Finnish (NFE) AF: 0.765 AC: 51998 AN: 67960

Other (OTH) AF: 0.758 AC: 1600 AN: 2110

Alfa AF: 0.771 Hom.: 26369

Bravo AF: 0.767

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	6.4
PhyloP100		-0.77

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1008284; hg19: chr17-36062458;