rs201175894
Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PM5PP5
The NM_000348.4(SRD5A2):c.271T>G(p.Tyr91Asp) variant causes a missense change. The variant allele was found at a frequency of 0.0000363 in 1,569,840 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y91H) has been classified as Likely pathogenic.
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 37)
Exomes 𝑓: 0.000039 ( 0 hom. )
Consequence
SRD5A2
NM_000348.4 missense
NM_000348.4 missense
Scores
1
4
3
Clinical Significance
Conservation
PhyloP100: 5.10
Genes affected
SRD5A2 (HGNC:11285): (steroid 5 alpha-reductase 2) This gene encodes a microsomal protein expressed at high levels in androgen-sensitive tissues such as the prostate. The encoded protein is active at acidic pH and is sensitive to the 4-azasteroid inhibitor finasteride. Deficiencies in this gene can result in male pseudohermaphroditism, specifically pseudovaginal perineoscrotal hypospadias (PPSH). [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 7 ACMG points.
PM1
?
In a chain 3-oxo-5-alpha-steroid 4-dehydrogenase 2 (size 253) in uniprot entity S5A2_HUMAN there are 57 pathogenic changes around while only 18 benign (76%) in NM_000348.4
PM2
?
Very rare variant in population databases, with high coverage;
PM5
?
Other missense variant is known to change same aminoacid residue: Variant chr2-31580630-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 492899.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP5
?
Variant 2-31580630-A-C is Pathogenic according to our data. Variant chr2-31580630-A-C is described in ClinVar as [Pathogenic]. Clinvar id is 492898.Status of the report is no_assertion_criteria_provided, 0 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SRD5A2 | NM_000348.4 | c.271T>G | p.Tyr91Asp | missense_variant | 1/5 | ENST00000622030.2 | |
SRD5A2 | XM_011533072.3 | c.27-46864T>G | intron_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SRD5A2 | ENST00000622030.2 | c.271T>G | p.Tyr91Asp | missense_variant | 1/5 | 1 | NM_000348.4 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152252Hom.: 0 Cov.: 37
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GnomAD3 exomes AF: 0.0000808 AC: 16AN: 197920Hom.: 0 AF XY: 0.0000557 AC XY: 6AN XY: 107712
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GnomAD4 exome AF: 0.0000388 AC: 55AN: 1417588Hom.: 0 Cov.: 57 AF XY: 0.0000427 AC XY: 30AN XY: 701928
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152252Hom.: 0 Cov.: 37 AF XY: 0.0000134 AC XY: 1AN XY: 74380
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ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
3-Oxo-5 alpha-steroid delta 4-dehydrogenase deficiency Pathogenic:1
Pathogenic, no assertion criteria provided | clinical testing | Clinical Molecular Genetics Laboratory, Johns Hopkins All Children's Hospital | Sep 27, 2010 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Pathogenic
Dann
Benign
FATHMM_MKL
Uncertain
D
MetaRNN
Uncertain
D
PrimateAI
Uncertain
T
Sift4G
Uncertain
D
Vest4
MVP
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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