chr2-31525140-C-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000348.4(SRD5A2):​c.*1056G>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0431 in 220,364 control chromosomes in the GnomAD database, including 354 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.044 ( 264 hom., cov: 32)
Exomes 𝑓: 0.042 ( 90 hom. )

Consequence

SRD5A2
NM_000348.4 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.59
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 2-31525140-C-G is Benign according to our data. Variant chr2-31525140-C-G is described in ClinVar as [Benign]. Clinvar id is 335807.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.121 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SRD5A2NM_000348.4 linkuse as main transcriptc.*1056G>C 3_prime_UTR_variant 5/5 ENST00000622030.2
SRD5A2XM_011533069.3 linkuse as main transcriptc.*1056G>C 3_prime_UTR_variant 5/5
SRD5A2XM_011533072.3 linkuse as main transcriptc.*1056G>C 3_prime_UTR_variant 7/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SRD5A2ENST00000622030.2 linkuse as main transcriptc.*1056G>C 3_prime_UTR_variant 5/51 NM_000348.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0438
AC:
6652
AN:
152042
Hom.:
260
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0115
Gnomad AMI
AF:
0.0932
Gnomad AMR
AF:
0.125
Gnomad ASJ
AF:
0.0216
Gnomad EAS
AF:
0.00308
Gnomad SAS
AF:
0.0369
Gnomad FIN
AF:
0.0181
Gnomad MID
AF:
0.0380
Gnomad NFE
AF:
0.0533
Gnomad OTH
AF:
0.0426
GnomAD4 exome
AF:
0.0416
AC:
2840
AN:
68210
Hom.:
90
Cov.:
0
AF XY:
0.0409
AC XY:
1289
AN XY:
31550
show subpopulations
Gnomad4 AFR exome
AF:
0.00884
Gnomad4 AMR exome
AF:
0.125
Gnomad4 ASJ exome
AF:
0.0241
Gnomad4 EAS exome
AF:
0.000297
Gnomad4 SAS exome
AF:
0.0554
Gnomad4 FIN exome
AF:
0.0556
Gnomad4 NFE exome
AF:
0.0510
Gnomad4 OTH exome
AF:
0.0479
GnomAD4 genome
AF:
0.0438
AC:
6665
AN:
152154
Hom.:
264
Cov.:
32
AF XY:
0.0434
AC XY:
3230
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.0114
Gnomad4 AMR
AF:
0.125
Gnomad4 ASJ
AF:
0.0216
Gnomad4 EAS
AF:
0.00289
Gnomad4 SAS
AF:
0.0376
Gnomad4 FIN
AF:
0.0181
Gnomad4 NFE
AF:
0.0533
Gnomad4 OTH
AF:
0.0436
Alfa
AF:
0.0470
Hom.:
112
Bravo
AF:
0.0494
Asia WGS
AF:
0.0340
AC:
120
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

3-Oxo-5 alpha-steroid delta 4-dehydrogenase deficiency Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.23
DANN
Benign
0.39

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: rs28383085; hg19: chr2-31750210; API