rs121918674
Variant summary
Our verdict is Pathogenic. Variant got 20 ACMG points: 20P and 0B. PS1_ModeratePM1PM2PM5PP3_StrongPP5_Very_Strong
The NM_000458.4(HNF1B):c.443C>T(p.Ser148Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely pathogenic in UniProt. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S148W) has been classified as Likely pathogenic.
Frequency
Consequence
NM_000458.4 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Pathogenic. Variant got 20 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
HNF1B | ENST00000617811.5 | c.443C>T | p.Ser148Leu | missense_variant | Exon 2 of 9 | 1 | NM_000458.4 | ENSP00000480291.1 | ||
HNF1B | ENST00000621123.4 | c.443C>T | p.Ser148Leu | missense_variant | Exon 2 of 9 | 1 | ENSP00000482711.1 | |||
HNF1B | ENST00000613727.4 | c.443C>T | p.Ser148Leu | missense_variant | Exon 2 of 7 | 1 | ENSP00000477524.1 | |||
HNF1B | ENST00000614313.4 | c.443C>T | p.Ser148Leu | missense_variant | Exon 2 of 8 | 5 | ENSP00000482529.1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0AN: 1461858Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 727232
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Renal cysts and diabetes syndrome Pathogenic:4
PM1, PM2, PM5, PP2, PP3, PP5 -
- -
PM2_Supporting+PS4_Moderate+PS2+PP3_Strong -
- -
not provided Pathogenic:2
Not observed at significant frequency in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 28215227, 21767339, 26876668, 21380624, 25741167, 18249217, 23306198, 28844315, 15930087, 31844813, 31825128, 28324003, 33663443, 32708349, 33532864) -
This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 148 of the HNF1B protein (p.Ser148Leu). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with renal cysts and diabetes syndrome (PMID: 15930087, 18249217, 21380624, 31825128, 32708349, 33663443). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 635698). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on HNF1B protein function. For these reasons, this variant has been classified as Pathogenic. -
Congenital anomaly of kidney and urinary tract Pathogenic:1
This patient is heterozygous for a de novo pathogenic variant, c. 443C>T (p.Ser148Leu), in the HNF1B gene. This variant was initially reported in a 13yo with renal dysplasia (diagnosed at birth) and diabetes (Edghill et al., J Med Genet 2006;43:84-90). It has subsequently been reported as a common cause of renal hypodysplasia (Thomas et al., Pediatr Nephrol, 2011; 26: 897-903) and has also been reported in a 3 month old Turkish child with bilateral hypoplastic kidneys and renal failure (Gonc et al., Paediatric Diabetes, 2012: 13: e1-e5). Testing of parental samples have indicated that this variant is de novo in this patient which adds further support for the pathogenicity of this variant (see MG-14-06539 and MG-14-06540). -
Type 2 diabetes mellitus;C0431693:Renal cysts and diabetes syndrome;CN074294:Nonpapillary renal cell carcinoma Pathogenic:1
- -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.