title: Structure and antigenicity analysis of the IgG gene for Nyctereutes procyonoides.
abstract: OBJECTIVE
  Nyctereutes procyonoides immunoglobulin G (IgG) gene is partially cloned.
  
  
  METHODS
  In order to obtain a certain length (966bp) of Nyctereutes procyonoides immunoglobulin G (IgG), two pairs of primers are designed according to the conserved nucleotide sequence of canine (GenBank:AF354265, AF354265, AF354266, AF354267) and mink (GenBank: L07789). Using Bioinformatics technology and Western-blot to analyze antigenicity of Nyctereutes procyonoides IgG-B gene.
  
  
  RESULTS
  The homology for nucleotide sequence of IgG between Nyctereutes procyonoides and canine (IgG A, IgG B, IgG C, IgG D), mink, Homo sapiens, Oryctolagus cuniculus, Mus musculus, Anas platyrhynchos and gallus were respectively (88.1%, 93.6%, 85.4%, 87.2%), 83.7%, 74.8%, 71.8%, 69.2%, 51.6%, 48.4%. It can be seen that there was high homology of aminoacid sequence between IgG of Nyctereutes procyonoides and IgG (A, B, C, D) of canine. And the serum antibody of Nyctereutes procyonoides had obviously cross-reaction with HRP conjugated rabbit anti-dog IgG, compared with those of canine, oryctolagus cuniculus, mus musculus, mink, gallus.
  
  
  CONCLUSIONS
  We successfully got Nyctereutes procyonoides immuneglobulin G (IgG) gene (Gen- Bank: KM010191). There is the closest ties of consanguinity of IgG exist between Nyctereutes procyonoides and canine among the mammal through the genetic evolution. The detection and treament of canine distemper can be used on Nyctereutes procyonoides.
authors.affiliation: College of Animal Science and Veterinary Medicine, Shandong Agricultural University; Shandong Province, 61 Daizong Road, Tai'an City 271000, Shandong Province, China.
authors.forename: Cui
authors.initials: C
authors.lastname: Zhao
authors.affiliation: College of Animal Science and Veterinary Medicine, Shandong Agricultural University; Shandong Province, 61 Daizong Road, Tai'an City 271000, Shandong Province, China.
authors.forename: Shuyuan
authors.initials: S
authors.lastname: Guo
authors.affiliation: College of Animal Science and Veterinary Medicine, Shandong Agricultural University; Shandong Province, 61 Daizong Road, Tai'an City 271000, Shandong Province, China.
authors.forename: Xiaoru
authors.initials: X
authors.lastname: Pang
authors.affiliation: BinzhouVeterinary Research Institute Binzhou, 256600, Shandong Province, China.
authors.forename: Daozhen
authors.initials: D
authors.lastname: Song
authors.affiliation: BinzhouVeterinary Research Institute Binzhou, 256600, Shandong Province, China.
authors.forename: Shijun
authors.initials: S
authors.lastname: Fu
authors.affiliation: College of Animal Science and Veterinary Medicine, Shandong Agricultural University; Shandong Province, 61 Daizong Road, Tai'an City 271000, Shandong Province, China.
authors.forename: Weishan
authors.initials: W
authors.lastname: Chang
keywords: IgG; gene cloning; genetic evolution analysis; nyctereutes procyonoides; western blot