rs774637975

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 6P and 2B. PM1PM2PM5BP4_Moderate

The NM_000545.8(HNF1A):ā€‹c.29C>Gā€‹(p.Thr10Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,820 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T10M) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

HNF1A
NM_000545.8 missense

Scores

1
6
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.46
Variant links:
Genes affected
HNF1A (HGNC:11621): (HNF1 homeobox A) The protein encoded by this gene is a transcription factor required for the expression of several liver-specific genes. The encoded protein functions as a homodimer and binds to the inverted palindrome 5'-GTTAATNATTAAC-3'. Defects in this gene are a cause of maturity onset diabetes of the young type 3 (MODY3) and also can result in the appearance of hepatic adenomas. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2015]
HNF1A-AS1 (HGNC:26785): (HNF1A antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a helix (size 15) in uniprot entity HNF1A_HUMAN there are 12 pathogenic changes around while only 0 benign (100%) in NM_000545.8
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr12-120978797-C-T is described in Lovd as [Likely_pathogenic].
BP4
Computational evidence support a benign effect (MetaRNN=0.20703882).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HNF1ANM_000545.8 linkuse as main transcriptc.29C>G p.Thr10Arg missense_variant 1/10 ENST00000257555.11 NP_000536.6
HNF1ANM_001306179.2 linkuse as main transcriptc.29C>G p.Thr10Arg missense_variant 1/10 NP_001293108.2
HNF1ANM_001406915.1 linkuse as main transcriptc.29C>G p.Thr10Arg missense_variant 1/9 NP_001393844.1
HNF1AXM_024449168.2 linkuse as main transcriptc.29C>G p.Thr10Arg missense_variant 1/9 XP_024304936.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HNF1AENST00000257555.11 linkuse as main transcriptc.29C>G p.Thr10Arg missense_variant 1/101 NM_000545.8 ENSP00000257555 P4
HNF1A-AS1ENST00000619441.1 linkuse as main transcriptn.128+1847G>C intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460820
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726738
show subpopulations
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.040
CADD
Benign
20
DANN
Benign
0.88
DEOGEN2
Uncertain
0.48
.;T;T;T;T;.
Eigen
Benign
-0.64
Eigen_PC
Benign
-0.42
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.79
T;T;T;T;T;T
M_CAP
Uncertain
0.28
D
MetaRNN
Benign
0.21
T;T;T;T;T;T
MetaSVM
Uncertain
0.0025
D
MutationTaster
Benign
1.0
D;N;N;N;N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
0.22
N;.;.;.;N;N
REVEL
Uncertain
0.47
Sift
Benign
0.56
T;.;.;.;T;T
Sift4G
Benign
0.83
T;T;T;T;T;T
Polyphen
0.0040
.;.;.;.;.;B
Vest4
0.16
MutPred
0.51
Gain of MoRF binding (P = 0.0173);Gain of MoRF binding (P = 0.0173);Gain of MoRF binding (P = 0.0173);Gain of MoRF binding (P = 0.0173);Gain of MoRF binding (P = 0.0173);Gain of MoRF binding (P = 0.0173);
MVP
0.83
MPC
0.19
ClinPred
0.39
T
GERP RS
3.4
gMVP
0.71

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs774637975; hg19: chr12-121416600; API