Literature DB >> 2271535

Role of tyrosine M210 in the initial charge separation of reaction centers of Rhodobacter sphaeroides.

U Finkele1, C Lauterwasser, W Zinth, K A Gray, D Oesterhelt.   

Abstract

Femtosecond spectroscopy was used in combination with site-directed mutagenesis to study the influence of tyrosine M210 (YM210) on the primary electron transfer in the reaction center of Rhodobacter sphaeroides. The exchange of YM210 to phenylalanine caused the time constant of primary electron transfer to increase from 3.5 +/- 0.4 ps to 16 +/- 6 ps while the exchange to leucine increased the time constant even more to 22 +/- 8 ps. The results suggest that tyrosine M210 is important for the fast rate of the primary electron transfer.

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Year:  1990        PMID： 2271535     DOI： 10.1021/bi00489a002

Source DB:  PubMed          Journal:  Biochemistry        ISSN： 0006-2960            Impact factor:   3.162


  9 in total

1.  Spectroscopic characterization of reaction centers of the (M)Y210W mutant of the photosynthetic bacterium Rhodobacter sphaeroides.

Authors:  S Shochat; T Arlt; C Francke; P Gast; P I van Noort; S C Otte; H P Schelvis; S Schmidt; E Vijgenboom; J Vrieze; W Zinth; A J Hoff
Journal:  Photosynth Res       Date:  1994-04       Impact factor: 3.573

2.  Reaction center and antenna processes in photosynthesis at low temperature.

Authors:  T J Aartsma; J Amesz
Journal:  Photosynth Res       Date:  1996-05       Impact factor: 3.573

3.  Kinetics, energetics, and electronic coupling of the primary electron transfer reactions in mutated reaction centers of Blastochloris viridis.

Authors:  P Huppman; T Arlt; H Penzkofer; S Schmidt; M Bibikova; B Dohse; D Oesterhelt; J Wachtveit; W Zinth
Journal:  Biophys J       Date:  2002-06       Impact factor: 4.033

4.  Photosynthetic reaction center variants made via genetic code expansion show Tyr at M210 tunes the initial electron transfer mechanism.

Authors:  Jared Bryce Weaver; Chi-Yun Lin; Kaitlyn M Faries; Irimpan I Mathews; Silvia Russi; Dewey Holten; Christine Kirmaier; Steven G Boxer
Journal:  Proc Natl Acad Sci U S A       Date:  2021-12-21       Impact factor: 12.779

5.  Primary electron transfer kinetics in bacterial reaction centers with modified bacteriochlorophylls at the monomeric sites BA,B.

Authors:  U Finkele; C Lauterwasser; A Struck; H Scheer; W Zinth
Journal:  Proc Natl Acad Sci U S A       Date:  1992-10-15       Impact factor: 11.205

6.  Putative hydrogen bond to tyrosine M208 in photosynthetic reaction centers from Rhodobacter capsulatus significantly slows primary charge separation.

Authors:  Miguel Saggu; Brett Carter; Xiaoxue Zhou; Kaitlyn Faries; Lynette Cegelski; Dewey Holten; Steven G Boxer; Christine Kirmaier
Journal:  J Phys Chem B       Date:  2014-06-06       Impact factor: 2.991

7.  Energetic insights into two electron transfer pathways in light-driven energy-converting enzymes.

Authors:  Keisuke Kawashima; Hiroshi Ishikita
Journal:  Chem Sci       Date:  2018-03-28       Impact factor: 9.825

8.  Acquirement of water-splitting ability and alteration of the charge-separation mechanism in photosynthetic reaction centers.

Authors:  Hiroyuki Tamura; Keisuke Saito; Hiroshi Ishikita
Journal:  Proc Natl Acad Sci U S A       Date:  2020-06-29       Impact factor: 11.205

9.  Mechanism of the formation of proton transfer pathways in photosynthetic reaction centers.

Authors:  Yu Sugo; Keisuke Saito; Hiroshi Ishikita
Journal:  Proc Natl Acad Sci U S A       Date:  2021-07-27       Impact factor: 11.205
  9 in total

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