Genetic Variant STEAP3:p.Arg51Cys (chr2-119245617-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_182915.3(STEAP3):c.151C>T(p.Arg51Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000323 in 1,609,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

STEAP3
NM_182915.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.07

Variant links:

Genes affected

STEAP3 (HGNC:24592): (STEAP3 metalloreductase) This gene encodes a multipass membrane protein that functions as an iron transporter. The encoded protein can reduce both iron (Fe3+) and copper (Cu2+) cations. This protein may mediate downstream responses to p53, including promoting apoptosis. Deficiency in this gene can cause anemia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2015]

STEAP3 links:

STEAP3-AS1 (HGNC:41053): (STEAP3 antisense RNA 1)

STEAP3-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.888

BS2

High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STEAP3	NM_182915.3 link	c.151C>T	p.Arg51Cys	missense_variant	Exon 3 of 6	ENST00000393110.7	NP_878919.2	Q658P3-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STEAP3	ENST00000393110.7 link	c.151C>T	p.Arg51Cys	missense_variant	Exon 3 of 6	1	NM_182915.3	ENSP00000376822.2		Q658P3-2

Frequencies

GnomAD3 genomes

AF:

0.0000525

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000399

AC:

AN:

250930

Hom.:

AF XY:

0.0000516

AC XY:

AN XY:

135688

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000529

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000302

AC:

AN:

1457240

Hom.:

Cov.:

AF XY:

0.0000387

AC XY:

AN XY:

723822

show subpopulations

Gnomad4 AFR exome

AF:

0.0000599

Gnomad4 AMR exome

AF:

0.0000672

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000253

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000208

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152360

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74518

show subpopulations

Gnomad4 AFR

AF:

0.0000722

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

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:

0.0000579

Hom.:

Bravo

AF:

0.000132

ExAC

AF:

0.0000576

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 08, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.151C>T (p.R51C) alteration is located in exon 3 (coding exon 2) of the STEAP3 gene. This alteration results from a C to T substitution at nucleotide position 151, causing the arginine (R) at amino acid position 51 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Pathogenic

0.18

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.31

.;T;.;T

Eigen

Pathogenic

0.72

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;.;D;D

M_CAP

Benign

0.057

MetaRNN

Pathogenic

0.89

D;D;D;D

MetaSVM

Uncertain

-0.17

MutationAssessor

Pathogenic

3.6

.;H;.;H

PrimateAI

Uncertain

0.58

PROVEAN

Pathogenic

-6.0

D;D;D;D

REVEL

Uncertain

0.48

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Pathogenic

0.0010

D;D;D;D

Polyphen

1.0

D;D;D;D

Vest4

0.87

MVP

0.62

MPC

0.78

ClinPred

0.99

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.84

gMVP

0.83

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over