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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

Scores

1
4
3

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 5.10
Variant links:
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]

Genome browser will be placed here

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
SRD5A2NM_000348.4 linkuse as main transcriptc.271T>G p.Tyr91Asp missense_variant 1/5 ENST00000622030.2
SRD5A2XM_011533072.3 linkuse as main transcriptc.27-46864T>G intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SRD5A2ENST00000622030.2 linkuse as main transcriptc.271T>G p.Tyr91Asp missense_variant 1/51 NM_000348.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152252
Hom.:
0
Cov.:
37
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
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:
0.00
GnomAD3 exomes
AF:
0.0000808
AC:
16
AN:
197920
Hom.:
0
AF XY:
0.0000557
AC XY:
6
AN XY:
107712
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00179
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000388
AC:
55
AN:
1417588
Hom.:
0
Cov.:
57
AF XY:
0.0000427
AC XY:
30
AN XY:
701928
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00178
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000365
Gnomad4 OTH exome
AF:
0.000102
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152252
Hom.:
0
Cov.:
37
AF XY:
0.0000134
AC XY:
1
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000523
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000335
AC:
4

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 providedclinical testingClinical Molecular Genetics Laboratory, Johns Hopkins All Children's HospitalSep 27, 2010- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.89
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
Cadd
Pathogenic
28
Dann
Benign
0.82
FATHMM_MKL
Uncertain
0.91
D
MetaRNN
Uncertain
0.67
D
PrimateAI
Uncertain
0.66
T
Sift4G
Uncertain
0.0020
D
Vest4
0.92
MVP
0.79
GERP RS
4.0
gMVP
0.96

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: rs201175894; hg19: chr2-31805700; API