Recombinant Human SFTPD/SP-D Protein (Glu22Gly, His Tag)

SFTPD;SP-D

P35247

Surfactant Pulmonary-Associated Protein D (SP-D) is a 43 kDa member of the collectin family of innate immune modulators. Its principal components consist of a collagen-like region and a C-terminal carbohydrate recognition domain (CRD), a structure that places it in a subset of pattern recognition proteins termed defense collagens. SP-D is constitutively secreted by alveolar lining cells and epithelium associated with tubular structures and induced in cardiac smooth muscle and endothelial cells. It binds both secreted and transmembrane proteins that transduce its function. It binds human neutrophil defensins, modulating influenza anti-viral defense. It binds MD-2/LY96, a secreted protein that cooperates with Toll-like receptors (TLRs) in the response of macrophages to bacterial lipopolysaccharides (LPS) or cell wall components. It also binds macrophage CD14 and TLRs directly, blocking binding of LPS and down-regulating TNF-α secretion. SP-D binding of both SIRPα and the calreticulin/CD91 complex on macrophages allows for a graded response to environmental challenge.

36.5 kDa

< 1.0 EU per ug of the protein as determined by the LAL method.

HEK293 Cells

Lyophilized from a 0.2 um filtered solution of 20mM PB, 150mM NaCl, pH 7.2.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.

C-6His

45 kDa

> 95 % as determined by reducing SDS-PAGE.

Ala21-Phe375(Glu22Gly)

Pulmonary Surfactant-Associated Protein D;PSP-D;SP-D;Collectin-7;Lung Surfactant Protein D;SFTPD;COLEC7;PSPD;SFTP4;COLEC7;SFTP4

P35247