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Volumn 106, Issue 7, 2002, Pages 1799-1808

Comparison of M-side electron transfer in Rb. sphaeroides and Rb. capsulatus reaction centers

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRON TRANSFER; RESONANCE RAMAN STUDIES;

EID: 0037149090     PISSN: 10895647     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp013264w     Document Type: Article
Times cited : (55)

References (93)
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    • note
    • -) Similarly, electron transfer to QA is slowed because of the larger distance involved.
  • 41
    • 0011080438 scopus 로고    scopus 로고
    • note
    • L is replaced by a BChl (β) via mutagenesis, is replaced by another pigment via chemical treatment or has a Asp residue placed nearby.
  • 42
    • 0034705174 scopus 로고    scopus 로고
    • L with such water molecules should not contribute significantly because such bonding is not commensurate with the vibrational data on wt RCs or the G(M201)D mutant (at least when P is neutral). (b) Fyfe, P.K.; Ridge, J.P.; McAuley, K.E.; Cogdell, R.J.; Isaacs, N.W.; Jones, M.R Biochemistry 2000, 39, 5953-5960. (c) Lutz, M.; Robert, B. In Biological Applications or Raman Spectroscopy; Spiro, T.G., Ed.; Wiley: New York, 1988; Vol 3, pp 347-411. (d) Lutz, M.; Mantele, W. In Chlorophylls; Scheer, H., Ed.; CRC Press: Boca Raton, FL, 1991; pp 855-902. (e) Lutz, M. Biospectroscopy 1995, 1, 313-327. (f) Palanniappan, V.; Bocian, D.F. J. Am. Chem. Soc. 1995, 117, 3647-3648.
    • (2000) Biochemistry , vol.39 , pp. 5953-5960
    • Fyfe, P.K.1    Ridge, J.P.2    McAuley, K.E.3    Cogdell, R.J.4    Isaacs, N.W.5    Jones, M.R.6
  • 43
    • 0001534465 scopus 로고
    • Spiro, T.G., Ed.; Wiley: New York
    • L with such water molecules should not contribute significantly because such bonding is not commensurate with the vibrational data on wt RCs or the G(M201)D mutant (at least when P is neutral). (b) Fyfe, P.K.; Ridge, J.P.; McAuley, K.E.; Cogdell, R.J.; Isaacs, N.W.; Jones, M.R Biochemistry 2000, 39, 5953-5960. (c) Lutz, M.; Robert, B. In Biological Applications or Raman Spectroscopy; Spiro, T.G., Ed.; Wiley: New York, 1988; Vol 3, pp 347-411. (d) Lutz, M.; Mantele, W. In Chlorophylls; Scheer, H., Ed.; CRC Press: Boca Raton, FL, 1991; pp 855-902. (e) Lutz, M. Biospectroscopy 1995, 1, 313-327. (f) Palanniappan, V.; Bocian, D.F. J. Am. Chem. Soc. 1995, 117, 3647-3648.
    • (1988) Biological Applications or Raman Spectroscopy , vol.3 , pp. 347-411
    • Lutz, M.1    Robert, B.2
  • 44
    • 0000885678 scopus 로고
    • Scheer, H., Ed.; CRC Press: Boca Raton, FL
    • L with such water molecules should not contribute significantly because such bonding is not commensurate with the vibrational data on wt RCs or the G(M201)D mutant (at least when P is neutral). (b) Fyfe, P.K.; Ridge, J.P.; McAuley, K.E.; Cogdell, R.J.; Isaacs, N.W.; Jones, M.R Biochemistry 2000, 39, 5953-5960. (c) Lutz, M.; Robert, B. In Biological Applications or Raman Spectroscopy; Spiro, T.G., Ed.; Wiley: New York, 1988; Vol 3, pp 347-411. (d) Lutz, M.; Mantele, W. In Chlorophylls; Scheer, H., Ed.; CRC Press: Boca Raton, FL, 1991; pp 855-902. (e) Lutz, M. Biospectroscopy 1995, 1, 313-327. (f) Palanniappan, V.; Bocian, D.F. J. Am. Chem. Soc. 1995, 117, 3647-3648.
    • (1991) Chlorophylls , pp. 855-902
    • Lutz, M.1    Mantele, W.2
  • 45
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    • L with such water molecules should not contribute significantly because such bonding is not commensurate with the vibrational data on wt RCs or the G(M201)D mutant (at least when P is neutral). (b) Fyfe, P.K.; Ridge, J.P.; McAuley, K.E.; Cogdell, R.J.; Isaacs, N.W.; Jones, M.R Biochemistry 2000, 39, 5953-5960. (c) Lutz, M.; Robert, B. In Biological Applications or Raman Spectroscopy; Spiro, T.G., Ed.; Wiley: New York, 1988; Vol 3, pp 347-411. (d) Lutz, M.; Mantele, W. In Chlorophylls; Scheer, H., Ed.; CRC Press: Boca Raton, FL, 1991; pp 855-902. (e) Lutz, M. Biospectroscopy 1995, 1, 313-327. (f) Palanniappan, V.; Bocian, D.F. J. Am. Chem. Soc. 1995, 117, 3647-3648.
    • (1995) Biospectroscopy , vol.1 , pp. 313-327
    • Lutz, M.1
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    • L with such water molecules should not contribute significantly because such bonding is not commensurate with the vibrational data on wt RCs or the G(M201)D mutant (at least when P is neutral). (b) Fyfe, P.K.; Ridge, J.P.; McAuley, K.E.; Cogdell, R.J.; Isaacs, N.W.; Jones, M.R Biochemistry 2000, 39, 5953-5960. (c) Lutz, M.; Robert, B. In Biological Applications or Raman Spectroscopy; Spiro, T.G., Ed.; Wiley: New York, 1988; Vol 3, pp 347-411. (d) Lutz, M.; Mantele, W. In Chlorophylls; Scheer, H., Ed.; CRC Press: Boca Raton, FL, 1991; pp 855-902. (e) Lutz, M. Biospectroscopy 1995, 1, 313-327. (f) Palanniappan, V.; Bocian, D.F. J. Am. Chem. Soc. 1995, 117, 3647-3648.
    • (1995) J. Am. Chem. Soc. , vol.117 , pp. 3647-3648
    • Palanniappan, V.1    Bocian, D.F.2
  • 48
    • 0011145423 scopus 로고    scopus 로고
    • note
    • Because of the different lengths of the M chains, residues M214Leu and M212Leu are structurally analogous in the RCs of Rb. sphaeroides and Rb. capsulatus, respectively. Likewise, residues M203Gly and M201Gly are analogous.
  • 59
    • 0011077572 scopus 로고    scopus 로고
    • note
    • (a) Care was taken to substitute codons preferred by Rhodobacter (e.g., CAC was used for M214His instead of CAT); however, GAT was used to encode Asp at M203 because it only required a single mismatch from the native Gly codon GGT and because it was the codon used to construct the analogous M201D substitution in the DH mutant of Rb. capsulatus. Although we note that GAT is a relatively rarely used Asp codon in the Rhodobacter photosynthetic gene cluster, its presence does not appear to affect the yield of recombinant protein.
  • 60
    • 0003693731 scopus 로고
    • Blankenship, R.E., Madigan, M.T., Bauer, C.E., Eds; Kluwer Academic Publishers: Dordrecht, The Netherlands
    • (b) Williams, J.C.; Taguchi, A.K.W. In: Anoxygenic Photosynthetic Bacteria; Blankenship, R.E., Madigan, M.T., Bauer, C.E., Eds; Kluwer Academic Publishers: Dordrecht, The Netherlands, 1995; pp 1029-1065.
    • (1995) Anoxygenic Photosynthetic Bacteria , pp. 1029-1065
    • Williams, J.C.1    Taguchi, A.K.W.2
  • 77
    • 0011154824 scopus 로고    scopus 로고
    • note
    • - formation in Rb. sphaeroides than Rb. capsulatus.
  • 78
    • 0011086428 scopus 로고    scopus 로고
    • note
    • - and thus its contribution at 3 ns, as noted previously for other mutants.
  • 79
    • 0011154825 scopus 로고    scopus 로고
    • note
    • Because the data extend to only 3.8 ns and this at best is about four 1/e times of the slower component, the error in the associated time constant for the longer-lived component in the anion-region and P-bleaching decay is much larger than indicated by simple best fits (1.0 ± 0.4 ns and 1.2 ± 0.4 ns, respectively). For example, in the anion region, holding the slow component fixed at 1.5, 2.0, 2.5, or 3.0 ns gives visually good fits to the anion region data in Figure 6, with the value of the faster time constant only marginally changed. The use of time constants longer than about 4 ns for the slow component gives poorer fits and unreasonable spectra at the asymptote of the decay. These considerations suggest that the time constant of the slower component is likely in the 1-4 ns range. This behavior parallels that previously observed for the DH and KDH mutants.
  • 80
    • 0011085823 scopus 로고    scopus 로고
    • note
    • (a) The amplitude spectra in Figure 6 (insets) were generated from fits in which the value of the longer component was held fixed at 2.5 ns. Varying this time constant between 1.0 and 3.5 ns does not appreciably affect the derived spectra.
  • 81
    • 0011145427 scopus 로고    scopus 로고
    • note
    • +.
  • 86
    • 0011145142 scopus 로고    scopus 로고
    • note
    • -). Such delayed P* stimulated emission was also found previously for the analogous Rb. capsulatus DH mutant at 77 K (lifetime 470 ± 80) ps.
  • 87
    • 0011145143 scopus 로고    scopus 로고
    • note
    • -1; not shown).
  • 88
    • 0011136908 scopus 로고    scopus 로고
    • note
    • -1 bands by a small amount.
  • 89
    • 0011085954 scopus 로고    scopus 로고
    • note
    • An effective rate constant for electron transfer to each branch is used in the simple kinetic model because one- and two-step mechanisms are operative in parallel to an extent depending on the branch and the RC.
  • 90
    • 0011119277 scopus 로고    scopus 로고
    • note
    • - drops below P* as a result of genetic manipulation of the RC.
  • 93
    • 0034610345 scopus 로고    scopus 로고
    • The absorption band of P can be shifted from ∼830 to ∼850 nm (corresponding to an ∼0.03 eV difference in the P* energy) by altering a series of nearby amino acid residues, with no measurable change in the rate constant for electron transfer to the L branch; Eastman, J.E.; Taguchi, A.K.W.; Lin, S.; Jackson, J.A.; Woodbury, N.W. Biochemistry 2000, 39, 14787-14789.
    • (2000) Biochemistry , vol.39 , pp. 14787-14789
    • Eastman, J.E.1    Taguchi, A.K.W.2    Lin, S.3    Jackson, J.A.4    Woodbury, N.W.5


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.