Detects human Semaphorin 4D/CD100 in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human Semaphorin 4B, 4C, 4G, or recombinant mouse Semaphorin 4D is observed. In Western blots, no cross-reactivity with rhSemaphorin 4A, 6A, or 6C is observed.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG₁

Scientific Data Images for Human Semaphorin 4D/CD100 Antibody

Detection of Human Semaphorin 4D/CD100 by Western Blot.

Western blot shows lysates of IMR-32 human neuroblastoma cell line and Y-79 human retinoblastoma cell line. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Semaphorin 4D/CD100 Monoclonal Antibody (Catalog # MAB74701) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for Semaphorin 4D/CD100 at approximately 150 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Detection of Semaphorin 4D/ CD100 in Jurkat Human Cell Line by Flow Cytometry.

Jurkat human acute T cell leukemia cell line was stained with Mouse Anti-Human Semaphorin 4D/CD100 Monoclonal Antibody (Catalog # MAB74701, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B).

Applications for Human Semaphorin 4D/CD100 Antibody

Application

Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

2.5 µg/10⁶ cells
Sample: Jurkat human acute T cell leukemia cell line

Western Blot

2 µg/mL
Sample: IMR‑32 human neuroblastoma cell line and Y‑79 human retinoblastoma cell line

Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL. For liquid material, refer to CoA for concentration.

Formulation

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.

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: Semaphorin 4D/CD100

Semaphorin 4D (Sema4D/CD100, previously sem J, G or C-like 2) is a widely expressed 150 kDa type I transmembrane glycoprotein of the Class 4 Semaphorin family with activity in the immune and nervous systems. The 861 amino acid (aa) Semaphorin 4D contains a 710 aa extracellular domain (ECD) with a sema domain and an immunoglobulin-like domain. Within the ECD region used as an immunogen, mouse Semaphorin 4D shares 87% and 93% aa identity with human and rat Semaphorin 4D, respectively. A soluble, active 120 kDa form is produced proteolytically upon activation of B and T cells. Semaphorin 4D binds CD72 on B and dendritic cells and Plexin B1 elsewhere. In developing neurons, Semaphorin 4D assists in guidance. Semaphorin 4D is proangiogenic when expressed by tumor‑associated macrophages.

Alternate Names

A8, BB18, CD100, COLL-4, M-sema-G, SEMA4D, SEMAJ

Entrez Gene IDs

10507 (Human); 20354 (Mouse); 306790 (Rat)

Gene Symbol

SEMA4D

UniProt

Q92854

Additional Semaphorin 4D/CD100 Products

Product Documents for Human Semaphorin 4D/CD100 Antibody

Product Datasheets

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COA

SDS

Download SDS

Product Specific Notices for Human Semaphorin 4D/CD100 Antibody

For research use only

Citations
Reviews

Calculators
Flow Cytometry

Human Semaphorin 4D/CD100 Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB74701

Key Product Details

Species Reactivity

Applications

Label

Antibody Source

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Product Specifications

Immunogen

Specificity