Anti-Human CD47 [Clone B6H12] — Alexa Fluor® 647

Purified Recombinant Human CD47 (>98%)

This Alexa Fluor® 647 conjugate is formulated in 0.01 M phosphate buffered saline (150 mM NaCl) PBS pH 7.4, 1% BSA and 0.09% sodium azide as a preservative.
Alexa Fluor® is a trademark of Life Technologies Corporation.

Liquid

This Alexa Fluor® 647 conjugate is stable when stored at 2-8°C. Do not freeze.

Research Use Only

2-8°C Wet Ice

Red Laser (633 nm) Alexa Fluor® 647 has a maximum emission of 668 nm when it is excited at 633nm / 635nm.

Clone B6H12 recognizes an epitope on human CD47.

CD47 is a 50 kD transmembrane protein receptor to the Ig superfamily that can manifest in four isoforms, differing only in the length of their cytoplasmic tail. CD47 is involved in various cellular processes including apoptosis, proliferation, adhesion, and migration, and plays a key role in immune and angiogenic responses. CD47 was first identified as a tumor antigen on human ovarian cancer and its expression has subsequently been found on multiple human tumor types such as acute myeloid leukemia (AML), chronic myeloid leukemia, acute lymphoblastic leukemia (ALL), non-Hodgkin’s lymphoma (NHL), multiple myeloma (MM), bladder cancer, and pediatric and adult brain tumors. CD47 interacts with membrane integrins, TSP-1, and SIRPα. The CD47/SIRPα interaction results in the inhibition of phagocytosis by macrophages thus, allowing cancer cells to multiply unchecked. Anti-CD47 antibody is a potential therapeutic target in a variety of cancers and for the treatment of pulmonary fibrosis. Anti-CD47 antibody treatment not only facilitates macrophage phagocytosis of cancer, but also promotes the activation of cancer-specific lymphocytes by acting as a beacon, flagging cancer cells which now display altered proteins to which the immune system can react.

CD47 is expressed on leukocytes, platelets, erythrocytes, epithelial cells, endothelial cells, fibroblasts, and is overexpressed in ovarian cancer, as well as many different tumor cells.

Non-covalently associated with ß3 integrins CD51/CD61, CD41/CD61. Thrombospondin is a ligand for CD47.