Search Thermo Fisher Scientific
Search Thermo Fisher Scientific
NeoBiotechnologies
Antibody is stable for 24 months.
Positive Control: Epithelial cells of the lung, skin, small intestine or bladder. Cellular Localization: Secreted.
Specificity Comments: Pulmonary surfactant is primarily responsible for lowering the surface tension at the air-liquid interface in the alveoli, a process that is essential for normal respiration. Pulmonary surfactant is a mixture of phospholipids and proteins, including four distinct surfactant-associated proteins (SPs), SP-A, SP-B, SP-C, SP-D. SP-B and SP-C are predominantly hydrophobic proteins that associate with lipids to promote the absorption of surfactant phospholipids and to reduce the surface tension in the alveoli. SP-A and SP-D are large multimeric proteins belonging to the family of calcium-dependent lectins, designated Collectins, which contribute to the innate immune system. Both SP-A and SP-D have been shown to protect against microbial challenge through binding to the lipid components of the bacterial cell wall and facilitating the rapid removal of microbials.
Surfactant protein D (SP-D) is synthesized and secreted by lung epithelial cells. It belongs to group III of the family of C-type lectins and members of this group has overall structure consisting of multiple globular 'head' regions linked by triple-helical, collagen-like, strands. This group also includes SP-A and the serum proteins mannan-binding protein, conglutinin and collectin-43, all of which have been shown to bind to the C1q receptor found on a wide variety of cells. Both SP-D and SP-A have been shown to enhance oxygen radical production by alveolar macrophages.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Collectin-7; Collectin7; Lung surfactant protein D; PSP-D; PSP-D Surfactant protein D; pulmonary surfactant apoprotein; Pulmonary surfactant associated protein PSP-D; Pulmonary surfactant-associated protein D; SFTP 4; Surfactant associated protein pulmonary 4; surfactant-associated protein, pulmonary 4
Gene Aliases: COLEC7; PSP-D; PSPD; SFTP4; SFTPD; SP-D
UniProt ID: (Human) P35247
Entrez Gene ID: (Human) 6441
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
Learn moreGet expert recommendations for common problems or connect directly with an on staff expert for technical assistance related to applications, equipment and general product use.
Contact tech support