title: [Construction and identification of 2 secreted human GAD65 fragment DNA vaccines].
abstract: OBJECTIVE
  To construct and identify 2 secreted human GAD65 fragment DNA vaccines.
  
  
  METHODS
  The GAD(190-315), GAD(490-570) cDNA and hIL-2 signal peptide cDNA were linked through overlapping PCR, respectively. The fusion gene was cloned into eukaryotic expression vector pBudCE4.1. After the DNA vaccine being determined to contain the correct target nucleotide sequence, the expression of fusion proteins was detected by Western blot.
  
  
  RESULTS
  The nucleotide sequence of the cloned gene was the same as the reported sequence, and their open reading fragment was correct. The products of these DNA vaccines were expressed and secreted in eukaryotic cell using Western blot.
  
  
  CONCLUSIONS
  The pBudCE4.1/SGAD(190-315) and pBudCE4.1/SGAD(490-570) secreted human GAD65 fragment DNA vaccines were successfully constructed, which is a foundation for immune prevention of type 1 diabetes.
authors.affiliation: Institute of Metabolism and Endocrinology, Diabetes Center, Second Xiangya Hospital, Central South University, Changsha 410011, China.
authors.forename: Song
authors.initials: S
authors.lastname: Zhang
authors.forename: Peng-cheng
authors.initials: PC
authors.lastname: Zhou
authors.forename: Gan
authors.initials: G
authors.lastname: Huang
authors.forename: Yi
authors.initials: Y
authors.lastname: Sun
authors.forename: Zhi-guang
authors.initials: ZG
authors.lastname: Zhou
mesh_terms: D001483:Base Sequence; D003001:Cloning, Molecular; D018076:DNA, Complementary; D005822:Genetic Vectors; D005968:Glutamate Decarboxylase / Q000145:classification / Q000235:genetics*; D006801:Humans; D016366:Open Reading Frames; D010446:Peptide Fragments / Q000235:genetics; D011993:Recombinant Fusion Proteins / Q000235:genetics; D019444:Vaccines, DNA / Q000096:biosynthesis* / Q000235:genetics*
chemical_list: D018076:DNA, Complementary; D010446:Peptide Fragments; D011993:Recombinant Fusion Proteins; D019444:Vaccines, DNA; D005968:Glutamate Decarboxylase