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Human STEAP1 Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB55871

Recombinant Monoclonal Antibody.
R&D Systems, part of Bio-Techne
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MAB55871-100
MAB55871-SP

Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry, Simple Western, Western Blot

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Rabbit IgG Clone # 2959F

Product Specifications

Immunogen

E. coli-derived recombinant human STEAP1
Met1-Trp71
Accession # Q9UHE8

Specificity

Detects human STEAP1 in direct ELISA.

Clonality

Monoclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for Human STEAP1 Antibody

Detection of STEAP1 in HEK293 cells by Flow Cytometry.

HEK293 cells transfected with Human STEAP-1 and eGFP (A) vs irrelevant and eGFP (B) were stained with Rabbit Anti-Human STEAP1 Monoclonal Antibody (Catalog # MAB55871) followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). View our protocol for Staining Membrane-associated Proteins.

Detection of Human STEAP1 by Western Blot.

Western blot shows lysates of Human prostate cancer and LNCaP. PVDF membrane was probed with 0.5 µg/mL of Rabbit Anti-Human STEAP1 Monoclonal Antibody (Catalog # MAB55871) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for STEAP1 at approximately 36 kDa (as indicated). This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

Detection of Human STEAP1 by Simple WesternTM.

Simple Western lane view shows lysates of LNCaP human prostate cancer cells, loaded at 0.2 mg/mL. A specific band was detected for STEAP1 at approximately 39 kDa (as indicated) using 10 µg/mL of Rabbit Anti-Human STEAP1 Monoclonal Antibody (Catalog # MAB55871). This experiment was conducted under reducing conditions and using the 12-230kDa separation system.

Applications for Human STEAP1 Antibody

Application
Recommended Usage

Flow Cytometry

0.25 µg/106 cells
Sample: see below

Simple Western

10 µg/mL
Sample: LNCaP human prostate cancer cells

Western Blot

0.5 µg/mL
Sample: Human prostate cancer and LNCaP

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Reconstitution Buffer Available:
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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: STEAP1

STEAP1 (six-transmembrane epithelial antigen of the prostate-1) is a 40 kDa protein (predicted) of the STEAP family of metalloreductases. It is expressed mainly at cell‑cell junctions between prostate secretory epithelium, and up‑regulated in prostate and some bladder, colon and ovarian cancers and Ewing’s sarcomas. Human STEAP1 is 339 amino acids (aa) in length. It contains a ferric oxidoreductase domain (aa 119‑265) that includes transmembrane sequences (# 2, 3, 4, and part of 5, out of 6 sequences). Two splice forms diverge at aa 255, terminating after aa 58 or 259. Over aa 1‑71, human and mouse STEAP1 share 68% aa identity.

Long Name

Six Transmembrane Epithelial Antigen of the Prostate 1

Alternate Names

PRSS24

Entrez Gene IDs

26872 (Human); 70358 (Mouse); 297738 (Rat)

Gene Symbol

STEAP1

UniProt

Additional STEAP1 Products

Product Documents for Human STEAP1 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human STEAP1 Antibody

For research use only

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