An Intermediate Conformational State during Ligand Binding to Cytochrome c Oxidase Detected by Time-resolved Resonance Raman Analyses of Heme Peripheral Groups

A time-resolved resonance Raman analysis shows that the vinyl stretching band (1629 cm−1) of the O2-binding heme of cytochrome c oxidase shifts to 1627 cm−1 instantaneously upon photolysis of CO and remains for at least 5 ms before reaching the static band (1626 cm−1). Within the same time scale, an...

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Veröffentlicht in:	Chemistry letters 2012-02, Vol.41 (2), p.178-180
Hauptverfasser:	Ishigami, Izumi, Nishigaki, Takeshi, Shinzawa-Itoh, Kyoko, Yoshikawa, Shinya, Nakashima, Satoru, Ogura, Takashi
Format:	Artikel
Sprache:	eng
Schlagworte:	Bending Binding Cytochromes Ligands Oxidase Photolysis Stretching Time
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description	A time-resolved resonance Raman analysis shows that the vinyl stretching band (1629 cm−1) of the O2-binding heme of cytochrome c oxidase shifts to 1627 cm−1 instantaneously upon photolysis of CO and remains for at least 5 ms before reaching the static band (1626 cm−1). Within the same time scale, an intermediate vinyl bending mode of another heme appears at 435 cm−1. These results suggest that both hemes cooperatively control O2 binding by forming an intermediate conformation for effective proton pumping.
doi_str_mv	10.1246/cl.2012.178
format	Article
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Within the same time scale, an intermediate vinyl bending mode of another heme appears at 435 cm−1. These results suggest that both hemes cooperatively control O2 binding by forming an intermediate conformation for effective proton pumping.</description><subject>Bending</subject><subject>Binding</subject><subject>Cytochromes</subject><subject>Ligands</subject><subject>Oxidase</subject><subject>Photolysis</subject><subject>Stretching</subject><subject>Time</subject><issn>0366-7022</issn><issn>1348-0715</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNptkc9u1DAQxiMEEkvhxAv4iISy2HHsOMdlgbbSSkWlnKPZyaTrVWIH20HkaXhVvGqPnOaPfvONZr6ieC_4VlS1_oTjtuKi2orGvCg2Qtam5I1QL4sNl1qXDa-q18WbGM-cc9PKalP83Tl26xKFiXoLidjeu8GHCZL1Dkb2I12a_RKse2QH-wiuZ5-t6y9l8my_Jo-n4CdiyO7-2B4isS-UCBP17LiyBztRGSj68Xdu3OfEgUNi9zCBY7u8Yo0UmR_YDWWR7xTsfKKQN18Hv8zxbfFqgDHSu-d4Vfz89vVhf1Me7q5v97tDicK0qjQtIDQ6H8-NAiTZaANakyYlNaJEqetW1eo49FTjEeUA2PaNqkBwrASXV8WHJ905-F8LxdRNNiKNIzjyS-xEU9faKKNURj8-oRh8jIGGbg52grB2gncXGzocu4sNechk2jzTJ5os5hs8WkrrGWZw3dkvIf8g_nf0H0_1kF8</recordid><startdate>20120205</startdate><enddate>20120205</enddate><creator>Ishigami, Izumi</creator><creator>Nishigaki, Takeshi</creator><creator>Shinzawa-Itoh, Kyoko</creator><creator>Yoshikawa, Shinya</creator><creator>Nakashima, Satoru</creator><creator>Ogura, Takashi</creator><general>The Chemical Society of Japan</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20120205</creationdate><title>An Intermediate Conformational State during Ligand Binding to Cytochrome c Oxidase Detected by Time-resolved Resonance Raman Analyses of Heme Peripheral Groups</title><author>Ishigami, Izumi ; Nishigaki, Takeshi ; Shinzawa-Itoh, Kyoko ; Yoshikawa, Shinya ; Nakashima, Satoru ; Ogura, Takashi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1895-89aca76201085ace3768a66e6e536cc3c3649545bfde4cbc3fac9d752a10c2103</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Bending</topic><topic>Binding</topic><topic>Cytochromes</topic><topic>Ligands</topic><topic>Oxidase</topic><topic>Photolysis</topic><topic>Stretching</topic><topic>Time</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ishigami, Izumi</creatorcontrib><creatorcontrib>Nishigaki, Takeshi</creatorcontrib><creatorcontrib>Shinzawa-Itoh, Kyoko</creatorcontrib><creatorcontrib>Yoshikawa, Shinya</creatorcontrib><creatorcontrib>Nakashima, Satoru</creatorcontrib><creatorcontrib>Ogura, Takashi</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Chemistry letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ishigami, Izumi</au><au>Nishigaki, Takeshi</au><au>Shinzawa-Itoh, Kyoko</au><au>Yoshikawa, Shinya</au><au>Nakashima, Satoru</au><au>Ogura, Takashi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An Intermediate Conformational State during Ligand Binding to Cytochrome c Oxidase Detected by Time-resolved Resonance Raman Analyses of Heme Peripheral Groups</atitle><jtitle>Chemistry letters</jtitle><addtitle>Chemistry Letters</addtitle><date>2012-02-05</date><risdate>2012</risdate><volume>41</volume><issue>2</issue><spage>178</spage><epage>180</epage><pages>178-180</pages><issn>0366-7022</issn><eissn>1348-0715</eissn><abstract>A time-resolved resonance Raman analysis shows that the vinyl stretching band (1629 cm−1) of the O2-binding heme of cytochrome c oxidase shifts to 1627 cm−1 instantaneously upon photolysis of CO and remains for at least 5 ms before reaching the static band (1626 cm−1). 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source	Oxford University Press Journals All Titles (1996-Current)
subjects	Bending Binding Cytochromes Ligands Oxidase Photolysis Stretching Time
title	An Intermediate Conformational State during Ligand Binding to Cytochrome c Oxidase Detected by Time-resolved Resonance Raman Analyses of Heme Peripheral Groups
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