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Rat CFH ORF mammalian expression plasmid, N-HA tag

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Rat CFH cDNA Clone Product Information
Gene_bank_ref_id:BC089845.1
RefSeq ORF Size:1182bp
cDNA Description:Full length Clone DNA of Rattus norvegicus complement factor H with N terminal HA tag.
Gene Synonym:Fh
Species:Rat
Vector:pCMV3-N-HA
Plasmid:
Restriction Site:
Tag Sequence:HA Tag Sequence: TATCCTTACGACGTGCCTGACTACGCC
Sequence Description:
Sequencing primers:T7(TAATACGACTCACTATAGGG) BGH(TAGAAGGCACAGTCGAGG)
Promoter:Enhanced CMV mammalian cell promoter
Application:Stable or Transient mammalian expression
Antibiotic in E.coli:Kanamycin
Antibiotic in mammalian cell:Hygromycin
Shipping_carrier:Each tube contains lyophilized plasmid.
Storage:The lyophilized plasmid can be stored at room temperature for three months.
HA Tag Info

Human influenza hemagglutinin (HA) is a surface glycoprotein required for the infectivity of the human virus. The HA tag is derived from the HA-molecule corresponding to amino acids 98-106 has been extensively used as a general epitope tag in expression vectors. Many recombinant proteins have been engineered to express the HA tag, which does not appear to interfere with the bioactivity or the biodistribution of the recombinant protein. This tag facilitates the detection, isolation, and purification of the proteins.

The actual HA tag is as follows: 5' TAC CCA TAC GAT GTT CCA GAT TAC GCT 3' or 5' TAT CCA TAT GAT GTT CCA GAT TAT GCT 3' The amino acid sequence is: YPYDVPDYA.

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Background

Complement factor H, also known as H factor 1, and CFH, is a sialic acid containing glycoprotein that plays an integral role in the regulation of the complement-mediated immune system that is involved in microbial defense, immune complex processing, and programmed cell death. Factor H protects host cells from injury resulting from unrestrained complement activation. CFH regulates complement activation on self cells by possessing both cofactor activity for the Factor I mediated C3b cleavage, and decay accelerating activity against the alternative pathway C3 convertase, C3bBb. CFH protects self cells from complement activation but not bacteria/viruses. Due to the central role that CFH plays in the regulation of complement, there are many clinical implications arrising from aberrant CFH activity. Mutations in the Factor H gene are associated with severe and diverse diseases including the rare renal disorders hemolytic uremic syndrome (HUS) and membranoproliferative glomerulonephritis (MPGN) also termed dense deposit disease (DDD), membranoproliferative glomuleronephritis type II or dense deposit disease, as well as the more frequent retinal disease age related macular degeneration (AMD). In addition to its complement regulatory activities, factor H has multiple physiological activities and 1) acts as an extracellular matrix component, 2) binds to cellular receptors of the integrin type, and 3) interacts with a wide selection of ligands, such as the C-reactive protein, thrombospondin, bone sialoprotein, osteopontin, and heparin.

References
  • Zipfel PF. (2001) Complement factor H: physiology and pathophysiology. Semin Thromb Hemost. 27(3): 191-9.
  • Zipfel PF, et al. (2008) The complement fitness factor H: role in human diseases and for immune escape of pathogens, like pneumococci. Vaccine. 26 Suppl 8: I67-74.
  • Ferreira VP, et al. (2010) Complement control protein factor H: the good, the bad, and the inadequate. Mol Immunol. 47(13): 2187-97.
  • Donoso LA, et al. (2010) The role of complement Factor H in age-related macular degeneration: a review. Surv Ophthalmol. 55(3): 227-46.
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    Catalog: RG81017-NY
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