SFTPD His Tag Protein, Human
SKU: 73479143959

SFTPD His Tag Protein, Human

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Description

SFTPD His Tag Protein, HumanProduct Specification Species Human Synonyms SP D; PSP D; SFTP4; COLEC7 Accession P35247 Amino Acid Sequence Ala21 Phe375, with C terminal His Expression System HEK293 Molecular Weight 37 47kDa (Reducing) Purity 95% by SDS PAGE Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, pH7. 4. Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in ultrapure water after rapid

Product Specification


Species Human
Synonyms SP-D; PSP-D; SFTP4; COLEC7
Accession P35247
Amino Acid Sequence Ala21-Phe375, with C-terminal His
Expression System HEK293
Molecular Weight 37-47kDa (Reducing)
Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4.
Reconstitution Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.
Stability & Storage · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
· 3 months, -20 to -80℃ under sterile conditions after reconstitution.
· 1 week, 2 to 8℃ under sterile conditions after reconstitution.
· Please avoid repeated freeze-thaw cycles.
Reference

1.Kuroki Y, Voelker DR. Pulmonary surfactant proteins. J Biol Chem. 1994; 269:25943–25946.
2.Sano H, Kuroki Y. The lung collectins, SP-A and SP-D, modulate pulmonary innate immunity. Mol Immunol. 2005; 42:279–287.
3.Hu F, Ding G, Zhang Z, Gatto LA, Hawgood S, Poulain FR, et al. Innate immunity of surfactant proteins A and D in urinary tract infection with uropathogenic escherichia coli. J Innate Immun. 2015; 22:9–20.
4.Liu Z, Shi Q, Liu J, Abdel-Razek O, Xu Y, Cooney RN, et al. Innate immune molecule surfactant protein d attenuates sepsis-induced acute pancreatic injury through modulating apoptosis and NF-κB-mediated Inflammation. Sci Rep. 2015; 5:17798.
5.Stahlman MT, Gray ME, Hull WM, Whitsett JA. Immunolocalization of surfactant protein-D (SP-D) in human fetal, newborn, and adult tissues. J Histochem Cytochem. 2002; 50:651–660.

Background

Surfactant Protein D (SP-D, gene name: SFTPD) is a pattern recognition molecule belonging to the family of collections expressed in multiple human organ systems, including the lungs. SFTPD is located at the genomic position 10q22.2‐23.1. In addition to the respiratory system, SFTPD is also expressed in several other tissues/organs, such as the brain, pancreas, kidney, gut, endothelium, and reproductive system. SFTPD was initially identified to be expressed and secreted in lung alveolar epithelial type II cells and plays a crucial role in protecting the lung from inhaled microorganisms, organic antigens, and toxins by recruiting the innate immune system and consequently regulating inflammatory activities. SFTPD is a critical component of the innate immune system intrinsically linked to energy metabolism. SFTPD plays an important role in the innate immune system by binding bacteria, viruses, fungi, and parasites for clearance via opsonization in phagocytes, as well as aiding in the removal of allergens.

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SKU: 73479143959

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Gina
Carnegie, US
★★★★★ 5
Nice decorative shelves
Color: White, Size: 15.7 Inches, Color: White, Size: 15.7 Inches
Love these shelves! Nice, sturdy and decorative!
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Reviewed in the United States on May 29, 2026
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EEMD
Alexandria, US
★★★★★ 3
Quality Assurance Lacking
Color: White, Size: 15.7 Inches
The first set I ordered was great; super easy to install, no issues. The second set I ordered the holes on the bottom of the shelves did not match up with the holes on the bar that secures the shelves to the wall so it was impossible to attach the shelves correctly. I'm still trying to figure out a solution. TO SUMMARIZE: First set perfect; second set unusable
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Reviewed in the United States on May 2, 2026
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ron
Lowell, US
★★★★★ 5
Happy with my purchase
Style: Industrial / Rustic, Style: Industrial / Rustic
These shelves are fantastic! The quality is excellent, assembly was quick and easy, and they look great once installed. They have a much more expensive appearance than their price suggests. I’m very happy with my purchase and would highly recommend them.
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Reviewed in the United States on May 25, 2026
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Lisa Brown
Charlottesville, US
★★★★★ 5
Nice product
Style: 2 Tier with Tower Bar
Great quality, great material. Easy to install. Looks great on the wall.
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Reviewed in the United States on May 10, 2026
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HA
Grantham, US
★★★★★ 5
Great sturdy shelf, install can be a bit challenging
Style: 3 Tier with Tower Bar, Style: 3 Tier with Tower Bar
The shelf is great and does exactly what I wanted it to do. I will note that the instructions indicate you’re supposed to use a 6 mm drillbit to install the anchors which comes out to about a 15/64 size. I would recommend a quarter inch drillbit because I was really struggling to get those anchors in there. Several folks also said that it’s easiest to install with two people, but you don’t need two people if you have some way to prop the piece up while you’re marking the hole placements to drill (and I would definitely recommend having a level on it the entire time you’re working to make sure that it’s correct). Lastly, it is easiest to put it together first, and then mark the drill holes, put the piece aside and drill and install the anchors, and then screw it in. I will also caution folks to not overtighten the pipe connections, because the pipes will end up in a wonky direction in the end. Overall I am extremely happy with this piece and certainly for the price!!
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Reviewed in the United States on February 2, 2026

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