Rat SFTPD/SP-D Gene ORF cDNA clone expression plasmid,N terminal Myc tag

Gene

Species

Rat

NCBI Ref Seq

NM_012878.2

RefSeq ORF Size

1125bp

Gene Synonym

SPD, SP-D, Sftpd

Sequence Description

Identical with the Gene Bank Ref. ID sequence.

Description

Full length Clone DNA of Rat surfactant protein D Gene ORF cDNA clone expression plasmid,N terminal Myc tag

Plasmid

Promoter

Enhanced CMV mammalian cell promoter

Vector

pCMV3-N-Myc

Restriction Site

Protein Tag

Myc

Tag Sequence

GAGCAGAAACTCATCTCAGAAGAGGATCTG

Sequencing Primers

Forward:T7(TAATACGACTCACTATAGGG) Reverse:BGH(TAGAAGGCACAGTCGAGG)

Quality Control

The plasmid is confirmed by full-length sequencing.

Myc Tag Information

A myc tag is a polypeptide protein tag derived from the c-myc gene product that can be added to a protein using recombinant DNA technology. It can be used for affinity chromatography, then used to separate recombinant, overexpressed protein from wild type protein expressed by the host organism. It can also be used in the isolation of protein complexes with multiple subunits.

A myc tag can be used in many different assays that require recognition by an antibody. If there is no antibody against the studied protein, adding a myc-tag allows one to follow the protein with an antibody against the Myc epitope. Examples are cellular localization studies by immunofluorescence or detection by Western blotting.

The peptide sequence of the myc-tag is: N-EQKLISEEDL-C (1202 Da). It can be fused to the C-terminus and the N-terminus of a protein. It is advisable not to fuse the tag directly behind the signal peptide of a secretory protein, since it can interfere with translocation into the secretory pathway.

Screening

Antibiotic in E.coli

Kanamycin

Antibiotic in Mammalian cell

Hygromycin

Application

Stable or Transient mammalian expression

Storage & Shipping

Shipping

Each tube contains lyophilized plasmid.

Storage

The lyophilized plasmid can be stored at ambient temperature for three months.

Other Life Science vendor

Natural small molecules manufacturer | Biological Research Reagents Manufacturer

Background Information

Surfactant pulmonary-associated protein D, also known as SFTPD and SP-D, is a member of the collectin family of C-type lectins that is synthesized in many tissues including respiratory epithelial cells in the lung, and contains one C-type lectin domain and one collagen-like domain. The polymorphic variation in the N-terminal domain of the SP-D molecule influences oligomerization, function, and the concentration of the molecule in serum. SFTPD is produced primarily by alveolar type II cells and nonciliated bronchiolar cells in the lung and is constitutively secreted into the alveoli where it influences surfactant homeostasis, effector cell functions, and host defense. It is upregulated in a variety of inflammatory and infectious conditions including Pneumocystis pneumonia and asthma. SFTPD is humoral molecules of the innate immune system, and is considered a functional candidate in chronic periodontitis. 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 SFTPD. Thus, recombinant SFTPD has been proposed as a therapeutical option for cystic fibrosis, neonatal lung disease and smoking-induced emphysema. Furthermore, SFTPD serum levels can be used as disease activity markers for interstitial lung diseases.

References

Leth-Larsen R, et al. (2005) A common polymorphism in the SFTPD gene influences assembly, function, and concentration of surfactant protein D. J Immunol. 174(3): 1532-8.

Moran AP, et al. (2005) Role of surfactant protein D (SP-D) in innate immunity in the gastric mucosa: evidence of interaction with Helicobacter pylori lipopolysaccharide. J Endotoxin Res. 11(6): 357-62.

Hartl D, et al. (2006) Surfactant protein D in human lung diseases. Eur J Clin Invest. 36(6): 423-35.

Krueger M, et al. (2006) Amino acid variants in Surfactant protein D are not associated with bronchial asthma. Pediatr Allergy Immunol. 17(1): 77-81.

Glas J, et al. (2008) Increased plasma concentration of surfactant protein D in chronic periodontitis independent of SFTPD genotype: potential role as a biomarker. Tissue Antigens. 72(1): 21-8.

Catalog Number:HGG998-NM