Syndecan-4

Rat WI, also known as Wistar (outbred) IgG2a, κ

BCB10 mouse pre-B cell line

The KY/8.2 mAb reacts with mouse syndecan-4, a cell-surface heparan sulfate proteoglycan. Although the ligand(s) for this molecule is unknown, syndecans are known to interact with the heparin-binding domain of growth factors, chemokines, and extracellular matrix components. Accordingly, heparin inhibits the binding of syndecan-4 to the pre-B cell line BC7.12. Syndecan-4 is localized to focal adhesions and binds protein-kinase Cα. Thus, it is involved in cytoskeletal organization and signaling. Syndecan-4 is expressed on stromal cells and B-lymphocyte precursors in bone marrow, in addition to most splenic B cells and a small population of T lymphocytes. It is highly expressed on activated B lymphocytes, but is downregulated in isotype-switched memory B cells. The ectodomain of syndecan-4 is shed from cell surfaces constitutively and in response to specific physiological signals, and the resulting soluble fragments are functional. Immobilized KY/8.2 mAb induced the formation of dendritic  processes on syndecan-4-transfected cells and on anti-CD40-activated splenic B cells. Other methods of activating B cells have not produced the same effect. This antibody recognizes an epitope in the N-terminus of syndecan-4, regardless of post-translational modifications.

KY/8.2 The KY/8.2 mAb reacts with mouse syndecan-4, a cell-surface heparan sulfate proteoglycan. Although the ligand(s) for this molecule is unknown, syndecans are known to interact with the heparin-binding domain of growth factors, chemokines, and extracellular matrix components. Accordingly, heparin inhibits the binding of syndecan-4 to the pre-B cell line BC7.12. Syndecan-4 is localized to focal adhesions and binds protein-kinase Cα. Thus, it is involved in cytoskeletal organization and signaling. Syndecan-4 is expressed on stromal cells and B-lymphocyte precursors in bone marrow, in addition to most splenic B cells and a small population of T lymphocytes. It is highly expressed on activated B lymphocytes, but is downregulated in isotype-switched memory B cells. The ectodomain of syndecan-4 is shed from cell surfaces constitutively and in response to specific physiological signals, and the resulting soluble fragments are functional. Immobilized KY/8.2 mAb induced the formation of dendritic  processes on syndecan-4-transfected cells and on anti-CD40-activated splenic B cells. Other methods of activating B cells have not produced the same effect. This antibody recognizes an epitope in the N-terminus of syndecan-4, regardless of post-translational modifications.

Rat WI, also known as Wistar (outbred) IgG2a, κ

克隆 KY/8.2 (RUO)

0.5 mg/ml

Flow cytometry (Routinely Tested), ELISA (Reported)

Mouse (QC Testing)

Syndecan-4

Aqueous buffered solution containing ≤0.09% sodium azide.

研发参考(4) 1. Fitzgerald ML, Wang Z, Park PW, Murphy G, Bernfield M. Shedding of syndecan-1 and -4 ectodomains is regulated by multiple signaling pathways and mediated by a TIMP-3-sensitive metalloproteinase. J Cell Biol. 2000; 148(4):811-824. (Biology). 2. Rapraeger AC, Ott VL. Molecular interactions of the syndecan core proteins. Curr Opin Cell Biol. 1998; 10(5):620-628. (Biology). 3. Woods A, Couchman JR. Syndecan-4 and focal adhesion function. Curr Opin Cell Biol. 2001; 13(5):578-583. (Biology). 4. Yamashita Y, Oritani K, Miyoshi EK, Wall R, Bernfield M, Kincade PW. Syndecan-4 is expressed by B lineage lymphocytes and can transmit a signal for formation of dendritic processes. J Immunol. 1999; 162(10):5940-5948. (Immunogen: ELISA).