1. Natural Product and Drug Discovery Centre, Malaysian Institute of Pharmaceuticals and Nutraceuticals, Ministry of Science, Technology and Innovation, Gelugor, Malaysia;
2. Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia;
3. Protein Expression and Purification Unit, Malaysia Genome Institute, Kajang, Malaysia;
4. Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Malaysia;
5. Faculty of Biotechnology, International Manipal University, Nilai, Malaysia;
6. School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden, Malaysia