Cmr, chloramphenicol resistance cys, cystemne DACM, N-(7-dimethylamino-4-methyl-coumarinyl)-maemd DCCD, dicyclohexylcarbodiimide Su2z, the second co-helix in the epsilon (s) subunit ECD, 1-ethyl-3 [3 -dimethylamino]propyl carbodiimide ECL, enhanced electrochemiluminescence EDTA, ethylenediaminetetraacetic acid FPLC, fast polynucleotide liquid chromatography FRET, fluorescence resonance energy transfer g, gravitational force gln, glutamine glu, glutamate GFP, green fluorescent protein HA, peptide epitope of hemagglutinin protein of human influenza virus ICBR, Interdisciplinary Center for Biotechnology Research IPTG, isopropyl-1 -thio-P-D-galactopyranoside kb, kilobase kD, kilodalton LB, Luria Bertani medium LBG, Luria Bertani media supplemented with 0.2% glucose LDAO, lauryldimethylamine oxide LSB, Laemmli sample buffer mG, milligram