rs3822430

Positions:

• chr5-6651857-A-G

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Strong BP7 BA1

The NM_001047.4(SRD5A1):​c.309A>G​(p.Pro103Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.358 in 1,606,288 control chromosomes in the GnomAD database, including 106,157 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.35 (9385 hom., cov: 32)
  • Exomes 𝑓: 0.36 (96772 hom.)
• Consequence: SRD5A1 NM_001047.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.96

Genes affected

SRD5A1 (HGNC:11284): (steroid 5 alpha-reductase 1) Steroid 5-alpha-reductase (EC 1.3.99.5) catalyzes the conversion of testosterone into the more potent androgen, dihydrotestosterone (DHT). Also see SRD5A2 (MIM 607306).[supplied by OMIM, Mar 2008]

SRD5A1 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -13 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP7: Synonymous conserved (PhyloP=-1.96 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.37 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SRD5A1	NM_001047.4	c.309A>G	p.Pro103Pro	synonymous_variant	2/5	ENST00000274192.7	NP_001038.1
SRD5A1	NM_001324323.2	c.90A>G	p.Pro30Pro	synonymous_variant	3/6		NP_001311252.1
SRD5A1	NM_001324322.2	c.320-4221A>G		intron_variant			NP_001311251.1
SRD5A1	NR_136739.2	n.446A>G		non_coding_transcript_exon_variant	2/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SRD5A1	ENST00000274192.7	c.309A>G	p.Pro103Pro	synonymous_variant	2/5	1	NM_001047.4	ENSP00000274192.5

Frequencies

GnomAD3 genomes AF: 0.347 AC: 52741 AN: 151948 Hom.: 9373 Cov.: 32

Gnomad AFR AF: 0.336

Gnomad AMI AF: 0.471

Gnomad AMR AF: 0.355

Gnomad ASJ AF: 0.454

Gnomad EAS AF: 0.160

Gnomad SAS AF: 0.216

Gnomad FIN AF: 0.307

Gnomad MID AF: 0.421

Gnomad NFE AF: 0.374

Gnomad OTH AF: 0.368

GnomAD3 exomes AF: 0.329 AC: 82069 AN: 249338 Hom.: 14334 AF XY: 0.327 AC XY: 44080 AN XY: 134770

Gnomad AFR exome AF: 0.333

Gnomad AMR exome AF: 0.332

Gnomad ASJ exome AF: 0.461

Gnomad EAS exome AF: 0.170

Gnomad SAS exome AF: 0.217

Gnomad FIN exome AF: 0.311

Gnomad NFE exome AF: 0.374

Gnomad OTH exome AF: 0.358

GnomAD4 exome AF: 0.359 AC: 521525 AN: 1454222 Hom.: 96772 Cov.: 34 AF XY: 0.355 AC XY: 256507 AN XY: 722868

Gnomad4 AFR exome AF: 0.342

Gnomad4 AMR exome AF: 0.336

Gnomad4 ASJ exome AF: 0.460

Gnomad4 EAS exome AF: 0.163

Gnomad4 SAS exome AF: 0.220

Gnomad4 FIN exome AF: 0.315

Gnomad4 NFE exome AF: 0.378

Gnomad4 OTH exome AF: 0.354

GnomAD4 genome AF: 0.347 AC: 52793 AN: 152066 Hom.: 9385 Cov.: 32 AF XY: 0.341 AC XY: 25349 AN XY: 74340

Gnomad4 AFR AF: 0.336

Gnomad4 AMR AF: 0.355

Gnomad4 ASJ AF: 0.454

Gnomad4 EAS AF: 0.160

Gnomad4 SAS AF: 0.218

Gnomad4 FIN AF: 0.307

Gnomad4 NFE AF: 0.374

Gnomad4 OTH AF: 0.369

Alfa AF: 0.376 Hom.: 21883

Bravo AF: 0.354

Asia WGS AF: 0.190 AC: 664 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	0.17
DANN	Benign	0.62

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

Other links and lift over

dbSNP: rs3822430; hg19: chr5-6651970; COSMIC: COSV57013381;