chr7-88279598-A-C

Variant names:

• chr7-88279598-A-C
• NM_024636.4:c.1180T>G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_024636.4(STEAP4):​c.1180T>G​(p.Cys394Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: STEAP4 NM_024636.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.94

Genes affected

STEAP4 (HGNC:21923): (STEAP4 metalloreductase) The protein encoded by this gene belongs to the STEAP (six transmembrane epithelial antigen of prostate) family, and resides in the golgi apparatus. It functions as a metalloreductase that has the ability to reduce both Fe(3+) to Fe(2+) and Cu(2+) to Cu(1+), using NAD(+) as acceptor. Studies in mice and human suggest that this gene maybe involved in adipocyte development and metabolism, and may contribute to the normal biology of the prostate cell, as well as prostate cancer progression. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2011]

ENSG00000228113 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STEAP4	NM_024636.4	c.1180T>G	p.Cys394Gly	missense_variant	Exon 5 of 5	ENST00000380079.9	NP_078912.2
STEAP4	NM_001205315.2	c.1180T>G	p.Cys394Gly	missense_variant	Exon 6 of 6		NP_001192244.1
STEAP4	NM_001205316.2	c.652T>G	p.Cys218Gly	missense_variant	Exon 4 of 4		NP_001192245.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STEAP4	ENST00000380079.9	c.1180T>G	p.Cys394Gly	missense_variant	Exon 5 of 5	1	NM_024636.4	ENSP00000369419.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Feb 13, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1180T>G (p.C394G) alteration is located in exon 5 (coding exon 4) of the STEAP4 gene. This alteration results from a T to G substitution at nucleotide position 1180, causing the cysteine (C) at amino acid position 394 to be replaced by a glycine (G). 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	Uncertain	0.36
BayesDel_addAF	Uncertain	0.032	T
BayesDel_noAF	Benign	-0.19
CADD	Pathogenic	26
DANN	Uncertain	0.98
DEOGEN2	Benign	0.040	T;.
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.57
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.90	D;D
M_CAP	Benign	0.022	T
MetaRNN	Uncertain	0.70	D;D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.0	M;.
PrimateAI	Uncertain	0.69	T
PROVEAN	Pathogenic	-4.4	D;D
REVEL	Benign	0.28
Sift	Benign	0.46	T;D
Sift4G	Benign	0.67	T;T
Polyphen		0.99	D;D
Vest4		0.70
MutPred		0.59		Loss of stability (P = 0.0081);.;
MVP		0.57
MPC		0.68
ClinPred		0.98	D
GERP RS		5.8
Varity_R		0.74
gMVP		0.86

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: chr7-87908913;