dbSNP rs112986697: HNF1A:c.*5G>A (chr12-121001197-G-A) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_000545.8(HNF1A):c.*5G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000387 in 1,613,844 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). The gene HNF1A is included in the ClinGen Criteria Specification Registry.

Frequency

Genomes: 𝑓 0.0022 ( 4 hom., cov: 33)

Exomes 𝑓: 0.00020 ( 1 hom. )

Consequence

HNF1A
NM_000545.8 3_prime_UTR

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 2.56

Publications

2 publications found

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 links:

C12orf43 (HGNC:25719): (chromosome 12 open reading frame 43) Predicted to be involved in Spemann organizer formation and negative regulation of Wnt signaling pathway. Predicted to be located in nuclear envelope. [provided by Alliance of Genome Resources, Apr 2022]

C12orf43 links:

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ACMG classification

Specifications for HNF1A are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.53).

BP6

Variant 12-121001197-G-A is Benign according to our data. Variant chr12-121001197-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 377966.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00217 (330/152300) while in subpopulation AFR AF = 0.00755 (314/41574). AF 95% confidence interval is 0.00687. There are 4 homozygotes in GnomAd4. There are 165 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 330 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000545.8. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
HNF1A	NM_000545.8	MANE Select	c.*5G>A	3_prime_UTR	Exon 10 of 10	NP_000536.6
C12orf43	NM_022895.3	MANE Select	c.*2956C>T	3_prime_UTR	Exon 6 of 6	NP_075046.1
HNF1A	NM_001306179.2		c.*5G>A	3_prime_UTR	Exon 10 of 10	NP_001293108.2	F5H0K0

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
HNF1A	ENST00000257555.11	TSL:1 MANE Select	c.*5G>A	3_prime_UTR	Exon 10 of 10	ENSP00000257555.5	P20823-1
C12orf43	ENST00000288757.7	TSL:1 MANE Select	c.*2956C>T	3_prime_UTR	Exon 6 of 6	ENSP00000288757.5	Q96C57
HNF1A	ENST00000544413.2	TSL:1	c.*5G>A	3_prime_UTR	Exon 10 of 10	ENSP00000438804.1	F5H0K0

Frequencies

GnomAD3 genomes

AF:

0.00214

AC:

326

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00748

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000786

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:

0.00143

GnomAD2 exomes

AF:

0.000524

AC:

131

AN:

250210

AF XY:

0.000399

show subpopulations

Gnomad AFR exome

AF:

0.00753

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000885

Gnomad OTH exome

AF:

0.000491

GnomAD4 exome

AF:

0.000201

AC:

294

AN:

1461544

Hom.:

Cov.:

AF XY:

0.000172

AC XY:

125

AN XY:

727046

show subpopulations

African (AFR)

AF:

0.00711

AC:

238

AN:

33478

American (AMR)

AF:

0.000246

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53210

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000899

AC:

AN:

1111918

Other (OTH)

AF:

0.000546

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00217

AC:

330

AN:

152300

Hom.:

Cov.:

AF XY:

0.00222

AC XY:

165

AN XY:

74472

show subpopulations

African (AFR)

AF:

0.00755

AC:

314

AN:

41574

American (AMR)

AF:

0.000785

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68024

Other (OTH)

AF:

0.00142

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00244

Hom.:

Bravo

AF:

0.00262

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (3)

Maturity-onset diabetes of the young (2)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.53

CADD

Benign

(source)

DANN

Benign

0.78

PhyloP100

2.6

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over