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GeneBe

12-120997588-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_000545.8(HNF1A):c.1424C>G(p.Pro475Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,613,720 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. P475L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

HNF1A
NM_000545.8 missense

Scores

5
10
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.83
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.794

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HNF1ANM_000545.8 linkuse as main transcriptc.1424C>G p.Pro475Arg missense_variant 7/10 ENST00000257555.11
HNF1ANM_001306179.2 linkuse as main transcriptc.1424C>G p.Pro475Arg missense_variant 7/10
HNF1AXM_024449168.2 linkuse as main transcriptc.1424C>G p.Pro475Arg missense_variant 7/9
HNF1ANM_001406915.1 linkuse as main transcriptc.1309+846C>G intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HNF1AENST00000257555.11 linkuse as main transcriptc.1424C>G p.Pro475Arg missense_variant 7/101 NM_000545.8 P4

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152222
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461498
Hom.:
0
Cov.:
38
AF XY:
0.00000275
AC XY:
2
AN XY:
727078
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152222
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.20
Cadd
Uncertain
25
Dann
Uncertain
1.0
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.45
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.87
D;D;D;D;D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.79
D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationTaster
Benign
1.0
D;D;D;N
PrimateAI
Uncertain
0.52
T
PROVEAN
Uncertain
-3.7
D;.;.;.;D;D
REVEL
Pathogenic
0.77
Sift
Uncertain
0.0010
D;.;.;.;D;D
Sift4G
Uncertain
0.0090
D;D;D;D;D;D
Polyphen
1.0
.;.;.;.;.;D
Vest4
0.79
MutPred
0.53
Loss of glycosylation at P475 (P = 0.0396);Loss of glycosylation at P475 (P = 0.0396);.;.;Loss of glycosylation at P475 (P = 0.0396);Loss of glycosylation at P475 (P = 0.0396);
MVP
0.88
MPC
0.50
ClinPred
0.99
D
GERP RS
4.5
gMVP
0.90

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: rs193922580; hg19: chr12-121435391; API