aMembrane Protein Biology Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, India

bDepartment of Physiology and Cell Biology, University of Arkansas for Medical Sciences

cDivision of Cardiology, University of Arkansas for Medical Sciences and the VA Medical Center, Little Rock, Arkansas, USA

dICGEB-Emory Vaccine Centre, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, India

Correspondence to Arulandu Arockiasamy, Membrane Protein Biology Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India. Tel: +91 11 26741358x172; fax: +91 11 26742316; e-mail: [email protected], [email protected]