NM_000413.4:c.146C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_000413.4(HSD17B1):​c.146C>T​(p.Ala49Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000093 in 1,613,500 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

HSD17B1
NM_000413.4 missense

Scores

6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.549

Publications

0 publications found
Variant links:
Genes affected
HSD17B1 (HGNC:5210): (hydroxysteroid 17-beta dehydrogenase 1) This gene encodes a member of the 17beta-hydroxysteroid dehydrogenase family of short-chain dehydrogenases/reductases. It has a dual function in estrogen activation and androgen inactivation and plays a major role in establishing the estrogen E2 concentration gradient between serum and peripheral tissues. The encoded protein catalyzes the last step in estrogen activation, using NADPH to convert estrogens E1 and E2 and androgens like 4-androstenedione, to testosterone. It has an N-terminal short-chain dehydrogenase domain with a cofactor binding site, and a narrow, hydrophobic C-terminal domain with a steroid substrate binding site. This gene is expressed primarily in the placenta and ovarian granulosa cells, and to a lesser extent, in the endometrium, adipose tissue, and prostate. Polymorphisms in this gene have been linked to breast and prostate cancer. A pseudogene of this gene has been identified. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]
HSD17B1-AS1 (HGNC:55314): (HSD17B1 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2681157).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000413.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HSD17B1
NM_000413.4
MANE Select
c.146C>Tp.Ala49Val
missense
Exon 2 of 6NP_000404.2P14061
HSD17B1
NM_001330219.3
c.146C>Tp.Ala49Val
missense
Exon 2 of 6NP_001317148.1A0A0A0MQS7
HSD17B1
NR_144397.2
n.157C>T
non_coding_transcript_exon
Exon 2 of 5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HSD17B1
ENST00000585807.6
TSL:1 MANE Select
c.146C>Tp.Ala49Val
missense
Exon 2 of 6ENSP00000466799.1P14061
HSD17B1
ENST00000225929.5
TSL:2
c.146C>Tp.Ala49Val
missense
Exon 2 of 6ENSP00000225929.5A0A0A0MQS7
HSD17B1
ENST00000587280.1
TSL:2
n.157C>T
non_coding_transcript_exon
Exon 2 of 2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152230
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000402
AC:
10
AN:
248842
AF XY:
0.0000370
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000891
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461270
Hom.:
0
Cov.:
36
AF XY:
0.0000110
AC XY:
8
AN XY:
726942
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.000157
AC:
7
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52924
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111918
Other (OTH)
AF:
0.00
AC:
0
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000197
AC:
3
AN:
152230
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74394
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41464
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.0000941
AC:
1
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0136242), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.392
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000450
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000330
AC:
4

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D
Eigen
Benign
-0.11
Eigen_PC
Benign
-0.18
FATHMM_MKL
Benign
0.76
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.27
T
MetaSVM
Uncertain
-0.21
T
MutationAssessor
Benign
0.66
N
PhyloP100
0.55
PrimateAI
Uncertain
0.49
T
PROVEAN
Uncertain
-2.9
D
REVEL
Benign
0.24
Sift
Uncertain
0.025
D
Sift4G
Benign
0.071
T
Polyphen
0.99
D
Vest4
0.42
MutPred
0.59
Gain of MoRF binding (P = 0.0999)
MVP
0.90
MPC
0.56
ClinPred
0.24
T
GERP RS
2.2
PromoterAI
-0.046
Neutral
Varity_R
0.26
gMVP
0.54
Mutation Taster
=70/30
polymorphism

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

Other links and lift over

dbSNP: rs765000099; hg19: chr17-40705190; API