rs144834899

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 2P and 17B. PM2BP4_StrongBP6_Very_StrongBP7BS1

The NM_024592.5(SRD5A3):​c.672C>T​(p.Leu224=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000128 in 1,614,132 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00062 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000076 ( 0 hom. )

Consequence

SRD5A3
NM_024592.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.817
Variant links:
Genes affected
SRD5A3 (HGNC:25812): (steroid 5 alpha-reductase 3) The protein encoded by this gene belongs to the steroid 5-alpha reductase family, and polyprenol reductase subfamily. It is involved in the production of androgen 5-alpha-dihydrotestosterone (DHT) from testosterone, and maintenance of the androgen-androgen receptor activation pathway. This protein is also necessary for the conversion of polyprenol into dolichol, which is required for the synthesis of dolichol-linked monosaccharides and the oligosaccharide precursor used for N-linked glycosylation of proteins. Mutations in this gene are associated with congenital disorder of glycosylation type Iq. [provided by RefSeq, Mar 2011]
SRD5A3-AS1 (HGNC:44138): (SRD5A3 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 4-55367697-C-T is Benign according to our data. Variant chr4-55367697-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 389689.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.817 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000624 (95/152280) while in subpopulation AFR AF= 0.00205 (85/41560). AF 95% confidence interval is 0.00169. There are 1 homozygotes in gnomad4. There are 47 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SRD5A3NM_024592.5 linkuse as main transcriptc.672C>T p.Leu224= synonymous_variant 4/5 ENST00000264228.9 NP_078868.1
SRD5A3-AS1NR_037969.1 linkuse as main transcriptn.364-534G>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SRD5A3ENST00000264228.9 linkuse as main transcriptc.672C>T p.Leu224= synonymous_variant 4/51 NM_024592.5 ENSP00000264228 P1

Frequencies

GnomAD3 genomes
AF:
0.000624
AC:
95
AN:
152162
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00205
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000215
AC:
54
AN:
251384
Hom.:
0
AF XY:
0.000191
AC XY:
26
AN XY:
135870
show subpopulations
Gnomad AFR exome
AF:
0.00289
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000759
AC:
111
AN:
1461852
Hom.:
0
Cov.:
32
AF XY:
0.0000701
AC XY:
51
AN XY:
727228
show subpopulations
Gnomad4 AFR exome
AF:
0.00248
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.000624
AC:
95
AN:
152280
Hom.:
1
Cov.:
32
AF XY:
0.000631
AC XY:
47
AN XY:
74458
show subpopulations
Gnomad4 AFR
AF:
0.00205
Gnomad4 AMR
AF:
0.000458
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000756
Hom.:
0
Bravo
AF:
0.000744
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

SRD5A3-congenital disorder of glycosylation Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 15, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxDec 19, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
7.4
DANN
Benign
0.66
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
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: rs144834899; hg19: chr4-56233864; API