chr1-119507502-C-G
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Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_000862.3(HSD3B1):āc.26C>Gā(p.Thr9Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: š 0.000020 ( 0 hom., cov: 32)
Exomes š: 6.8e-7 ( 0 hom. )
Consequence
HSD3B1
NM_000862.3 missense
NM_000862.3 missense
Scores
10
7
2
Clinical Significance
Conservation
PhyloP100: 2.84
Genes affected
HSD3B1 (HGNC:5217): (hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1) The protein encoded by this gene is an enzyme that catalyzes the oxidative conversion of delta-5-3-beta-hydroxysteroid precursors into delta-4-ketosteroids, which leads to the production of all classes of steroid hormones. The encoded protein also catalyzes the interconversion of 3-beta-hydroxy- and 3-keto-5-alpha-androstane steroids. [provided by RefSeq, Jun 2016]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.94
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
HSD3B1 | NM_000862.3 | c.26C>G | p.Thr9Arg | missense_variant | 2/4 | ENST00000369413.8 | NP_000853.1 | |
HSD3B1 | NM_001328615.1 | c.26C>G | p.Thr9Arg | missense_variant | 2/4 | NP_001315544.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
HSD3B1 | ENST00000369413.8 | c.26C>G | p.Thr9Arg | missense_variant | 2/4 | 1 | NM_000862.3 | ENSP00000358421.3 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152122Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000796 AC: 2AN: 251244Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135794
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GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461686Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 727148
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GnomAD4 genome AF: 0.0000197 AC: 3AN: 152122Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74314
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Dec 16, 2022 | The c.26C>G (p.T9R) alteration is located in exon 2 (coding exon 1) of the HSD3B1 gene. This alteration results from a C to G substitution at nucleotide position 26, causing the threonine (T) at amino acid position 9 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Pathogenic
D;D;D
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T;.;T
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
.;H;H
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D
REVEL
Pathogenic
Sift
Uncertain
D;D;D
Sift4G
Pathogenic
D;D;D
Polyphen
1.0
.;D;D
Vest4
0.90, 0.90
MVP
MPC
0.22
ClinPred
D
GERP RS
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gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at