Light-Induced Rearrangement of the β5 Strand in the BLUF Photoreceptor SyPixD (Slr1694).
Light-Induced Rearrangement of the β5 Strand in the BLUF Photoreceptor SyPixD (Slr1694).
复制标题
BLUF 感光器 SyPixD (Slr1694) 中 β5 链的光诱导重排
DOI:
10.1021/acs.jpclett.5b02245
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Mathes T
中科院分区:
文献类型:
--
作者:
Mehlhorn J;Lindtner T;Richter F;Glaß K;Steinocher H;Beck S;Hegemann P;Kennis JTM ;Mathes T
The structural changes that facilitate signal transduction in blue light sensors using FAD (BLUF) photoreceptors and confer the stability of the rearranged hydrogen bond network between flavin and protein in the signaling state are still poorly understood. Here, we investigate a semiconserved Trp residue in SyPixD (Slr1694) by isotope-edited vibrational spectroscopy and site-directed mutagenesis. In the signaling state, a β-sheet structure involving the backbone of W91 is formed without apparent change of environment of the W91 indole side chain. Mutation of W91, however, significantly influences the stability of the light-adapted state, suggesting that backbone rigidity rather than discrete side-chain conformations govern the stability of the light-adapted state. On the basis of computational and crystallographic models, we interpret these changes as a +1 register shift of the β2/β5 interaction with an unaffected indole side-chain conformation, rather than a +2 register shift accompanied by an indole side-chain flip that was previously proposed on the basis of X-ray structures.
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DOI:
10.1021/jp400437x
发表时间:
2013
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
A. Udvarhelyi;T. Domratcheva
通讯作者:
T. Domratcheva
影响因子:
3.7
作者:
Mehlhorn J;Steinocher H;Beck S;Kennis JT;Hegemann P;Mathes T
通讯作者:
Mathes T
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
Nakasone Yusuke;Ono Taka-aki;Ishii Asako;Shinji Masuda;Terazima Masahide;Nakasone Yusuke;小野高明;小野高明;小野高明
通讯作者:
小野高明
影响因子:
3.1
作者:
Richter, Florian;Scheib, Ulrike S.;Moeglich, Andreas
通讯作者:
Moeglich, Andreas
影响因子:
4.8
作者:
Mathes, Tilo;van Stokkum, Ivo H. M.;Kennis, John T. M.
通讯作者:
Kennis, John T. M.