Color Change of Proteorhodopsin by a Single Amino Acid Replacement at a Distant Cytoplasmic Loop | Zendy

Yoshitsugu Maiko | Zendy; Shibata Mikihiro | Zendy; Ikeda Daisuke | Zendy; Furutani Yuji | Zendy; Kandori Hideki | Zendy

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Color Change of Proteorhodopsin by a Single Amino Acid Replacement at a Distant Cytoplasmic Loop

Author(s) -

Yoshitsugu Maiko,

Shibata Mikihiro,

Ikeda Daisuke,

Furutani Yuji,

Kandori Hideki

Publication year - 2008

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200705989

Subject(s) - rhodopsin , chromophore , loop (graph theory) , graph , cytoplasm , pigment , amino acid , nirenberg and matthaei experiment , biology , chemistry , biochemistry , genetics , retinal , photochemistry , combinatorics , mathematics , organic chemistry

Switching from red to pink : It has been believed that only the amino acids near the retinal chromophore are responsible for the color tuning of rhodopsins. Herein is reported a color change of proteorhodopsin, an archaeal‐type rhodopsin in marine bacteria, by mutation of Ala178 to Arg at the E–F loop. The red shift at a neutral pH value amounts to 20 nm (see graph).

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