Plexin B3 Antibody

Western blot shows lysates of mouse brain (thalamus/hypothalamus) tissue. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Mouse/Rat Plexin B3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6879) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Plexin B3 at approximately 180-190 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Neuro‑2A mouse neuroblastoma cell line was stained with Sheep Anti-Mouse/Rat Plexin B3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6879, filled histogram) or isotype control antibody (Catalog # 5-001-A, open histogram), followed by Allophycocyanin-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # F0127).

C6 rat glioma cell line was stained with Sheep Anti-Mouse/Rat Plexin B3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6879, filled histogram) or isotype control antibody (Catalog # 5-001-A, open histogram), followed by Allophycocyanin-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # F0127).

Plexin B3 was detected in perfusion fixed frozen sections of mouse brain using Sheep Anti-Mouse/Rat Plexin B3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6879) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; Catalog # NL010) and counterstained with DAPI (blue). Specific staining was localized to oligodendrocytes. View our protocol for Fluorescent IHC Staining of Frozen Tissue Sections.

• Reactivity: Mu, Rt
• Applications: WB, Flow, IHC, CyTOF-ready
• Clonality: Polyclonal
• Host: Sheep
• Conjugate: Unconjugated
• Concentration: LYOPH

Plexin B3 Antibody Summary

• Immunogen: Chinese hamster ovary cell line CHO-derived recombinant mouse Plexin B3
  His25-Gln1235
  Accession # Q9QY40
• Specificity: Detects mouse and rat Plexin B3 in direct ELISAs and Western blots. In direct ELISAs, approximately 38% cross-reactivity with recombinant human (rh) Plexin B3 is observed, and less than 1% cross-reactivity with rhPlexin B2 is observed.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Sheep
• Gene: PLXNB3
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • CyTOF-ready
  • Flow Cytometry 2.5 ug/10^6 cells
  • Immunohistochemistry 5-15 ug/mL
  • Western Blot 1 ug/mL

Packaging, Storage & Formulations

• 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.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Sterile PBS to a final concentration of 0.2 mg/mL.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Plexin B3 Antibody

• PLEXB3
• Plexin B3
• plexin-B3
• PLEXR
• PLXN6
• PLXNB3

Background

Plexin-B3 (also plexin-6) is a 260-270 kDa member of the plexin-B subfamily, plexin family of proteins. It is found on postnatal neurons and oligodendroglia, and appears to have opposing functions. In a context-dependent manner, plexin-B3 may block cell process extension and induce growth cone collapse by binding to Sema5. Conversely, it may engage in homophilic interactions in trans, promoting growth cone extension and axon elongation. The HGF receptor Met has been reported to complex with plexin-B3 in cis, and this interaction may contribute to its reported opposing effects. Mature mouse plexin-B3 is an 1868 amino acid (aa) type I transmembrane glycoprotein. It contains a 1211 aa extracellular domain (ECD) (aa 25-1892) plus a 636 aa cytoplasmic region. The ECD contains one Sema-domain (aa 25-451), two PSI domains (aa 454-646) and four IPT regions (aa 814-1224). There is one isoform variant that contains an alternative Met start site 10 aa upstream of the standard site. Based on human studies, proteolysis of mouse plexin-B3 likely occurs, generating 160 kDa and 140 kDa ECD fragments. Over aa 25-1235, mouse plexin-B3 shares 95% and 82% aa identity with rat and human plexin-B3, respectively.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Publications for Plexin B3 Antibody (AF6879)(1)

Publication using AF6879

• Zuo Q, Yang Y, Lyu Y, Yang C, Chen C, Salman S, Huang T, Wicks E, Jackson W, Datan E, Qin W, Semenza G Plexin-B3 expression stimulates MET signaling, breast cancer stem cell specification, and lung metastasis. Cell Rep, 2023-02-28;42(3):112164. 2023-02-28 [PMID: 36857181] (Western Blot, Human)

Bioinformatics

• Gene Symbol: PLXNB3
• Uniprot:
  • Q9QY40()