リコンビナントタンパク質_精製したリコンビナントタンパク質 » SP-D, Human

SP-D, Human

Surfactant protein D is a member of the collectin family of innate immune modulators. It is constitutively secreted by alveolar lining cells and epithelium associated with tubular structures, that contains a N-terminal collagen-like domain and a C-terminal lectin domain that are characteristic of members of the collectin family of proteins, and also shows calcium-dependent binding to specific saccharides. Besides it is involved in the development of acute and chronic inflammation of the lung. Several human lung diseases are characterized by decreased levels of bronchoalveolar SP-D.
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Product Introduction
Species Human
Protein Construction
SP-D (Ala21-Phe375)
Accession # P35247
Purity > 98% as analyzed by SDS-PAGE
Endotoxin Level < 0.2 EU/μg of protein by gel clotting method
Expression System HEK 293
Apparent Molecular Weight 40~45kDa, on SDS-PAGE under reducing conditions.
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in ddH₂O or PBS up to 100 μg/ml.
Storage & Stability Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.

Background
Target Background Surfactant protein D is a member of the collectin family of innate immune modulators. It is constitutively secreted by alveolar lining cells and epithelium associated with tubular structures, that contains a N-terminal collagen-like domain and a C-terminal lectin domain that are characteristic of members of the collectin family of proteins, and also shows calcium-dependent binding to specific saccharides. Besides it is involved in the development of acute and chronic inflammation of the lung. Several human lung diseases are characterized by decreased levels of bronchoalveolar SP-D.
Synonyms SP-D; SFTPD; PSP-D; COLEC7; PSPD; SFTP4

For laboratory research use only. Direct human use, including taking orally and injection and clinical use are forbidden.