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

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

HNF1B
NM_000458.4 missense

Scores

12
2
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 9.60
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 20 ACMG points.

PS1
Transcript NM_000458.4 (HNF1B) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM1
In a helix (size 7) in uniprot entity HNF1B_HUMAN there are 11 pathogenic changes around while only 0 benign (100%) in NM_000458.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr17-37739541-G-C is described in Lovd as [Likely_pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.994
PP5
Variant 17-37739541-G-A is Pathogenic according to our data. Variant chr17-37739541-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 635698.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-37739541-G-A is described in Lovd as [Pathogenic]. Variant chr17-37739541-G-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HNF1BNM_000458.4 linkc.443C>T p.Ser148Leu missense_variant Exon 2 of 9 ENST00000617811.5 NP_000449.1 P35680-1Q6FHW6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HNF1BENST00000617811.5 linkc.443C>T p.Ser148Leu missense_variant Exon 2 of 9 1 NM_000458.4 ENSP00000480291.1 P35680-1
HNF1BENST00000621123.4 linkc.443C>T p.Ser148Leu missense_variant Exon 2 of 9 1 ENSP00000482711.1 P35680-2
HNF1BENST00000613727.4 linkc.443C>T p.Ser148Leu missense_variant Exon 2 of 7 1 ENSP00000477524.1 A0A0C4DGS8
HNF1BENST00000614313.4 linkc.443C>T p.Ser148Leu missense_variant Exon 2 of 8 5 ENSP00000482529.1 A0A087WZC2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1461858
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727232
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Renal cysts and diabetes syndrome Pathogenic:4
Sep 23, 2022
Laboratory of Medical Genetics, National & Kapodistrian University of Athens
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PM1, PM2, PM5, PP2, PP3, PP5 -

Jul 06, 2019
Institute of Human Genetics, FAU Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: literature only

- -

-
Juno Genomics, Hangzhou Juno Genomics, Inc
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PM2_Supporting+PS4_Moderate+PS2+PP3_Strong -

Feb 01, 2020
Molecular Biology Laboratory, Fundació Puigvert
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: research

- -

not provided Pathogenic:2
Nov 10, 2021
GeneDx
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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) -

Jun 22, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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
Apr 18, 2014
Sydney Genome Diagnostics, Children's Hospital Westmead
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: clinical testing

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
Jan 06, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.42
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.99
D;.;D;D;.;.
Eigen
Pathogenic
0.98
Eigen_PC
Pathogenic
0.95
FATHMM_MKL
Uncertain
0.97
D
M_CAP
Pathogenic
0.86
D
MetaRNN
Pathogenic
0.99
D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.9
M;M;.;.;.;.
PrimateAI
Pathogenic
0.86
D
Sift4G
Pathogenic
0.0
D;D;D;D;D;D
Polyphen
1.0
D;.;.;.;.;.
Vest4
0.99
MutPred
0.98
Loss of disorder (P = 0.0149);Loss of disorder (P = 0.0149);Loss of disorder (P = 0.0149);Loss of disorder (P = 0.0149);Loss of disorder (P = 0.0149);Loss of disorder (P = 0.0149);
MVP
0.99
ClinPred
0.99
D
GERP RS
6.1
Varity_R
0.83
gMVP
0.97

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-36099532; API