アーキロドプシン

バクテリアのレチナールタンパクの構造比較

抄録

Archaerhodopsin is a light-driven H⁺ pump of Halobacterium sp. aus-1. Amino acid sequence of archaerhodopsin deduced from the DNA sequence of the archaerhodpsin gene was 59% and 32% homologous to those of bacteriorhodopsin and halorhodopsin in Halobacterium halobium, respectively. The putative trans membrane structures of three retinal proteins were compared and the key residues for ion pumps which are conserved and face to the hydrophilic interior of proteins were suggested.