Genetic Variant STEAP1:p.Trp71Arg (chr7-90160931-T-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_012449.3(STEAP1):c.211T>C(p.Trp71Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000173 in 1,614,038 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 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

STEAP1
NM_012449.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.89

Variant links:

Genes affected

STEAP1 (HGNC:11378): (STEAP family member 1) This gene is predominantly expressed in prostate tissue, and is found to be upregulated in multiple cancer cell lines. The gene product is predicted to be a six-transmembrane protein, and was shown to be a cell surface antigen significantly expressed at cell-cell junctions. [provided by RefSeq, Jul 2008]

STEAP1 links:

STEAP2-AS1 (HGNC:40820): (STEAP2 antisense RNA 1)

STEAP2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.968

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STEAP1	NM_012449.3 link	c.211T>C	p.Trp71Arg	missense_variant	Exon 3 of 5	ENST00000297205.7	NP_036581.1	Q9UHE8
STEAP2-AS1	NR_110029.2 link	n.424+48920A>G		intron_variant	Intron 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
STEAP1	ENST00000297205.7 link	c.211T>C	p.Trp71Arg	missense_variant	Exon 3 of 5	1	NM_012449.3	ENSP00000297205.2	Q9UHE8
STEAP1	ENST00000475789.1 link	n.330T>C		non_coding_transcript_exon_variant	Exon 3 of 4	1
STEAP2-AS1	ENST00000478318.6 link	n.424+48920A>G		intron_variant	Intron 2 of 2	3

Frequencies

GnomAD3 genomes

AF:

0.0000919

AC:

AN:

152270

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000313

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000279

AC:

AN:

251156

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135730

show subpopulations

Gnomad AFR exome

AF:

0.000431

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000958

AC:

AN:

1461650

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727138

show subpopulations

Gnomad4 AFR exome

AF:

0.000418

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000919

AC:

AN:

152388

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74522

show subpopulations

Gnomad4 AFR

AF:

0.000313

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.000110

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 06, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.211T>C (p.W71R) alteration is located in exon 3 (coding exon 2) of the STEAP1 gene. This alteration results from a T to C substitution at nucleotide position 211, causing the tryptophan (W) at amino acid position 71 to be replaced by an arginine (R). 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

Pathogenic

0.98

BayesDel_addAF

Uncertain

0.036

BayesDel_noAF

Uncertain

0.12

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.63

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.80

M_CAP

Benign

0.028

MetaRNN

Pathogenic

0.97

MetaSVM

Benign

-0.46

MutationAssessor

Uncertain

2.3

PrimateAI

Uncertain

0.67

PROVEAN

Pathogenic

-12

REVEL

Uncertain

0.62

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.92

MutPred

0.79

Gain of disorder (P = 0.0141);

MVP

0.77

MPC

0.40

ClinPred

0.98

GERP RS

5.0

Varity_R

0.92

gMVP

0.82

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