7-90225138-C-G

Variant names:

• chr7-90225138-C-G
• rs1292087990
• NM_001244944.2:c.56C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001244944.2(STEAP2):​c.56C>G​(p.Pro19Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,594 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P19L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: STEAP2 NM_001244944.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.01
• Publications: 0 publications found

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001244944.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	STEAP2	NM_001244944.2	MANE Select	c.56C>G	p.Pro19Arg	missense	Exon 3 of 6	NP_001231873.1	Q8NFT2-1
	STEAP2	NM_001040665.2		c.56C>G	p.Pro19Arg	missense	Exon 3 of 6	NP_001035755.1	Q8NFT2-1
	STEAP2	NM_152999.4		c.56C>G	p.Pro19Arg	missense	Exon 2 of 5	NP_694544.2	Q8NFT2-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	STEAP2	ENST00000394621.7	TSL:1 MANE Select	c.56C>G	p.Pro19Arg	missense	Exon 3 of 6	ENSP00000378119.2	Q8NFT2-1
	STEAP2	ENST00000287908.7	TSL:1	c.56C>G	p.Pro19Arg	missense	Exon 2 of 5	ENSP00000287908.3	Q8NFT2-1
	STEAP2	ENST00000394622.6	TSL:1	c.56C>G	p.Pro19Arg	missense	Exon 3 of 6	ENSP00000378120.2	Q8NFT2-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251166 AF XY: 0.00

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 6.84e-7 AC: 1 AN: 1461594 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727094

African (AFR) AF: 0.0000299 AC: 1 AN: 33464

American (AMR) AF: 0.00 AC: 0 AN: 44666

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53404

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111856

Other (OTH) AF: 0.00 AC: 0 AN: 60382

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Uncertain	0.086	D
BayesDel_noAF	Uncertain	0.070
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.058	T
Eigen	Uncertain	0.63
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.031	D
MetaRNN	Uncertain	0.54	D
MetaSVM	Benign	-0.81	T
MutationAssessor	Benign	0.90	L
PhyloP100		7.0
PrimateAI	Pathogenic	0.80	T
PROVEAN	Uncertain	-3.0	D
REVEL	Uncertain	0.33
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.022	D
Polyphen		1.0	D
Vest4		0.54
MutPred		0.31		Gain of MoRF binding (P = 7e-04)
MVP		0.66
MPC		0.28
ClinPred		0.83	D
GERP RS		5.8
Varity_R		0.21
gMVP		0.77
Mutation Taster		=48/52	disease causing

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

Other links and lift over

dbSNP: rs1292087990; hg19: chr7-89854452;