Genetic Variant NM_012449.3:c.187C>T (chr7-90160907-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_012449.3(STEAP1):c.187C>T(p.His63Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,650 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 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. H63D) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

STEAP1
NM_012449.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.763

Publications

0 publications found

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:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.051796973).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012449.3. 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
	STEAP1	NM_012449.3	MANE Select	c.187C>T	p.His63Tyr	missense	Exon 3 of 5	NP_036581.1	Q9UHE8
	STEAP2-AS1	NR_110029.2		n.424+48944G>A		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
STEAP1	ENST00000297205.7	TSL:1 MANE Select	c.187C>T	p.His63Tyr	missense	Exon 3 of 5	ENSP00000297205.2	Q9UHE8
STEAP1	ENST00000475789.1	TSL:1	n.306C>T		non_coding_transcript_exon	Exon 3 of 4
STEAP1	ENST00000892309.1		c.187C>T	p.His63Tyr	missense	Exon 4 of 6	ENSP00000562368.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461650

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727136

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111828

Other (OTH)

AF:

0.00

AC:

AN:

60376

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.67

CADD

Benign

9.8

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.038

Eigen

Benign

-0.59

Eigen_PC

Benign

-0.51

FATHMM_MKL

Benign

0.42

LIST_S2

Benign

0.58

M_CAP

Benign

0.0037

MetaRNN

Benign

0.052

MetaSVM

Benign

-0.88

MutationAssessor

Benign

1.5

PhyloP100

0.76

PrimateAI

Benign

0.34

PROVEAN

Benign

1.1

REVEL

Benign

0.082

Sift

Benign

0.23

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.12

MutPred

0.42

Loss of helix (P = 0.0237)

MVP

0.21

MPC

0.051

ClinPred

0.061

GERP RS

3.2

Varity_R

0.038

gMVP

0.42

Mutation Taster

=97/3

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over