2-31526257-T-G

Variant names:

• chr2-31526257-T-G
• NM_000348.4:c.704A>C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_000348.4(SRD5A2):​c.704A>C​(p.Tyr235Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000701 in 1,425,548 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: SRD5A2 NM_000348.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.00

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.855

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SRD5A2	NM_000348.4	c.704A>C	p.Tyr235Ser	missense_variant	Exon 5 of 5	ENST00000622030.2	NP_000339.2
SRD5A2	XM_011533069.3	c.482A>C	p.Tyr161Ser	missense_variant	Exon 5 of 5		XP_011531371.1
SRD5A2	XM_011533072.3	c.449A>C	p.Tyr150Ser	missense_variant	Exon 7 of 7		XP_011531374.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SRD5A2	ENST00000622030.2	c.704A>C	p.Tyr235Ser	missense_variant	Exon 5 of 5	1	NM_000348.4	ENSP00000477587.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.01e-7 AC: 1 AN: 1425548 Hom.: 0 Cov.: 28 AF XY: 0.00000142 AC XY: 1 AN XY: 706398

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000123

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.72
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.17
CADD	Pathogenic	29
DANN	Benign	0.89
FATHMM_MKL	Pathogenic	0.99	D
MetaRNN	Pathogenic	0.86	D
PrimateAI	Uncertain	0.66	T
Sift4G	Uncertain	0.0040	D
Vest4		0.92
MVP		0.59
GERP RS		5.8
gMVP		0.99

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-31751327;