Affiliations 

  • 1 Advanced Molecular Biology Laboratory, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
Trop Biomed, 2014 Dec;31(4):792-801.
PMID: 25776606 MyJurnal

Abstract

Malaysia first reported H5N1 poultry case in 2004 and subsequently outbreak in poultry population in 2007. Here, a recombinant gene encoding of peptide epitopes, consisting fragments of HA1, HA2 and a polybasic cleavage site of H5N1 strain Malaysia, was amplified and cloned into pET-47b(+) bacterial expression vector. DNA sequencing and alignment analysis confirmed that the gene had no alteration and in-frame to the vector. Then, His-tagged truncated HA protein was expressed in Escherichia coli BL21 (DE3) under 1 mM IPTG induction. The protein expression was optimized under a time-course induction study and further purified using Ni-NTA agarose under reducing condition. Migration size of protein was detected at 15 kDa by Western blot using anti-His tag monoclonal antibody and demonstrated no discrepancy compared to its calculated molecular weight.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.