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GeneBe

rs2305880

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_025193.4(HSD3B7):ā€‹c.1068T>Cā€‹(p.Arg356=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.602 in 1,605,016 control chromosomes in the GnomAD database, including 302,080 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.53 ( 23616 hom., cov: 33)
Exomes š‘“: 0.61 ( 278464 hom. )

Consequence

HSD3B7
NM_025193.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -1.85
Variant links:
Genes affected
HSD3B7 (HGNC:18324): (hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 7) This gene encodes an enzyme which is involved in the initial stages of the synthesis of bile acids from cholesterol and a member of the short-chain dehydrogenase/reductase superfamily. The encoded protein is a membrane-associated endoplasmic reticulum protein which is active against 7-alpha hydrosylated sterol substrates. Mutations in this gene are associated with a congenital bile acid synthesis defect which leads to neonatal cholestasis, a form of progressive liver disease. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 16-30988141-T-C is Benign according to our data. Variant chr16-30988141-T-C is described in ClinVar as [Benign]. Clinvar id is 261870.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-30988141-T-C is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-1.86 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.885 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HSD3B7NM_025193.4 linkuse as main transcriptc.1068T>C p.Arg356= synonymous_variant 7/7 ENST00000297679.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HSD3B7ENST00000297679.10 linkuse as main transcriptc.1068T>C p.Arg356= synonymous_variant 7/71 NM_025193.4 P1Q9H2F3-1
ENST00000624286.1 linkuse as main transcriptn.130A>G non_coding_transcript_exon_variant 1/1
HSD3B7ENST00000262520.10 linkuse as main transcriptc.*314T>C 3_prime_UTR_variant 6/62 Q9H2F3-2

Frequencies

GnomAD3 genomes
AF:
0.529
AC:
80507
AN:
152070
Hom.:
23600
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.278
Gnomad AMI
AF:
0.630
Gnomad AMR
AF:
0.571
Gnomad ASJ
AF:
0.690
Gnomad EAS
AF:
0.906
Gnomad SAS
AF:
0.308
Gnomad FIN
AF:
0.668
Gnomad MID
AF:
0.737
Gnomad NFE
AF:
0.626
Gnomad OTH
AF:
0.593
GnomAD3 exomes
AF:
0.587
AC:
141223
AN:
240682
Hom.:
44486
AF XY:
0.581
AC XY:
75975
AN XY:
130876
show subpopulations
Gnomad AFR exome
AF:
0.263
Gnomad AMR exome
AF:
0.564
Gnomad ASJ exome
AF:
0.674
Gnomad EAS exome
AF:
0.910
Gnomad SAS exome
AF:
0.325
Gnomad FIN exome
AF:
0.659
Gnomad NFE exome
AF:
0.638
Gnomad OTH exome
AF:
0.611
GnomAD4 exome
AF:
0.610
AC:
886154
AN:
1452828
Hom.:
278464
Cov.:
60
AF XY:
0.604
AC XY:
436546
AN XY:
722678
show subpopulations
Gnomad4 AFR exome
AF:
0.265
Gnomad4 AMR exome
AF:
0.567
Gnomad4 ASJ exome
AF:
0.673
Gnomad4 EAS exome
AF:
0.910
Gnomad4 SAS exome
AF:
0.333
Gnomad4 FIN exome
AF:
0.654
Gnomad4 NFE exome
AF:
0.629
Gnomad4 OTH exome
AF:
0.610
GnomAD4 genome
AF:
0.529
AC:
80568
AN:
152188
Hom.:
23616
Cov.:
33
AF XY:
0.531
AC XY:
39477
AN XY:
74398
show subpopulations
Gnomad4 AFR
AF:
0.279
Gnomad4 AMR
AF:
0.571
Gnomad4 ASJ
AF:
0.690
Gnomad4 EAS
AF:
0.906
Gnomad4 SAS
AF:
0.309
Gnomad4 FIN
AF:
0.668
Gnomad4 NFE
AF:
0.626
Gnomad4 OTH
AF:
0.590
Alfa
AF:
0.624
Hom.:
35471
Bravo
AF:
0.520
Asia WGS
AF:
0.547
AC:
1907
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Feb 25, 2016- -
not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJul 05, 2018- -
Benign, criteria provided, single submitterclinical testingInvitaeFeb 01, 2024- -
Congenital bile acid synthesis defect 1 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabAug 10, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
11
DANN
Benign
0.63
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs2305880; hg19: chr16-30999462; COSMIC: COSV52679757; COSMIC: COSV52679757; API