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GeneBe

7-90225570-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001244944.2(STEAP2):c.488G>A(p.Arg163Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000303 in 1,584,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R163W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

STEAP2
NM_001244944.2 missense

Scores

8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.57
Variant links:
Genes affected
STEAP2 (HGNC:17885): (STEAP2 metalloreductase) This gene is a member of the STEAP family and encodes a multi-pass membrane protein that localizes to the Golgi complex, the plasma membrane, and the vesicular tubular structures in the cytosol. A highly similar protein in mouse has both ferrireductase and cupric reductase activity, and stimulates the cellular uptake of both iron and copper in vitro. Increased transcriptional expression of the human gene is associated with prostate cancer progression. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2779206).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
STEAP2NM_001244944.2 linkuse as main transcriptc.488G>A p.Arg163Gln missense_variant 3/6 ENST00000394621.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
STEAP2ENST00000394621.7 linkuse as main transcriptc.488G>A p.Arg163Gln missense_variant 3/61 NM_001244944.2 P1Q8NFT2-1

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152044
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000290
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000314
AC:
7
AN:
222606
Hom.:
0
AF XY:
0.0000332
AC XY:
4
AN XY:
120494
show subpopulations
Gnomad AFR exome
AF:
0.000131
Gnomad AMR exome
AF:
0.0000353
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:
0.0000384
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000202
AC:
29
AN:
1432306
Hom.:
0
Cov.:
33
AF XY:
0.0000169
AC XY:
12
AN XY:
710656
show subpopulations
Gnomad4 AFR exome
AF:
0.000187
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:
0.0000191
Gnomad4 OTH exome
AF:
0.0000338
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.000175
AC XY:
13
AN XY:
74396
show subpopulations
Gnomad4 AFR
AF:
0.000289
Gnomad4 AMR
AF:
0.000393
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:
0.0000918
Hom.:
0
Bravo
AF:
0.000140
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 04, 2022The c.488G>A (p.R163Q) alteration is located in exon 2 (coding exon 1) of the STEAP2 gene. This alteration results from a G to A substitution at nucleotide position 488, causing the arginine (R) at amino acid position 163 to be replaced by a glutamine (Q). 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
0.089
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.33
Cadd
Pathogenic
27
Dann
Uncertain
1.0
DEOGEN2
Benign
0.14
T;T;T;.;T;.;T;.
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.90
D;.;D;.;.;D;D;D
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.28
T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.99
T
MutationTaster
Benign
0.95
D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-3.1
D;D;D;D;D;D;D;D
REVEL
Benign
0.25
Sift
Uncertain
0.0090
D;D;D;D;D;D;D;D
Sift4G
Benign
0.11
T;D;D;D;D;D;D;D
Polyphen
0.97, 0.92
.;D;D;.;D;.;P;.
Vest4
0.48, 0.49, 0.49, 0.50, 0.48, 0.49
MVP
0.31
MPC
0.12
ClinPred
0.75
D
GERP RS
5.6
Varity_R
0.39
gMVP
0.76

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.

Other links and lift over

dbSNP: rs145671164; hg19: chr7-89854884; COSMIC: COSV55288991; COSMIC: COSV55288991; API