Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Stephen V. Kolaczkowski"'
Publikováno v:
Photochemistry and Photobiology. 56:157-162
— Hypericin has been found to exhibit a variety of photodynamic effects. To correlate biological activity with molecular structure, complete physical characterization of hypericin is required. The vibrational spectrum has been determined and resona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::718f9c485ed71b310545c2d182a1288b
https://doi.org/10.1111/j.1751-1097.1992.tb02142.x
https://doi.org/10.1111/j.1751-1097.1992.tb02142.x
Autor:
David E. Budil, Francis Johnson, Stephen V. Kolaczkowski, Phyllis R. Strauss, Alex Perry, Andres Mckenzie
Publikováno v:
Biochemical and biophysical research communications. 288(3)
We report the first observation of a spin-labeled ds 23-mer oligonucleotide by high-field electron spin resonance (ESR) and demonstrate that it interacts with AP endonuclease, the key enzyme in DNA abasic site repair. The spin labeled 23-mer with a U
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8423fab4f729ba1c3701540b3d9c3a74
https://pubmed.ncbi.nlm.nih.gov/11676503
https://pubmed.ncbi.nlm.nih.gov/11676503
Publikováno v:
Science (New York, N.Y.). 260(5104)
Structural modification of photosynthetic reaction centers is an important approach for understanding their charge-separation processes. An unprecedented persistent structural transformation of the special pair (dimer) of bacteriochlorophyll molecule
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15c4f5e8f570e5a4f56286c6f1c2cb36
https://pubmed.ncbi.nlm.nih.gov/17793534
https://pubmed.ncbi.nlm.nih.gov/17793534
Publikováno v:
The Photosynthetic Bacterial Reaction Center II ISBN: 9781461363309
Spectral hole burning has revealed the structure underlying the broad (~ 100–500 cm-1) Qy -absorption band of chlorophylls and other cofactors in a wide variety of antenna and reaction center (RC) complexes (for reviews see refs. 1 and 2). It is no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a428cf5ee3224e7060c57ca103a94b69
https://doi.org/10.1007/978-1-4615-3050-3_21
https://doi.org/10.1007/978-1-4615-3050-3_21
Publikováno v:
Biochemistry. 29(26)
Electron paramagnetic resonance (EPR) has been used to investigate the cation and triplet states of Rhodobacter capsulatus reaction centers (RCs) containing amino acid substitutions affecting the primary donor, monomeric bacteriochlorophylls (Bchls),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::097112d54ecabe1e2f1ca7c845d2d9a2
https://pubmed.ncbi.nlm.nih.gov/2169865
https://pubmed.ncbi.nlm.nih.gov/2169865
Publikováno v:
Molecular Biology of Membrane-Bound Complexes in Phototrophic Bacteria ISBN: 9781475708950
One of the exciting new techniques available to photosynthetic researchers is the ability to perform site-directed mutagenesis on the photosynthetic apparatus. The X-ray crystal structures of reaction centers (RCs) can be used to identify important a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cbb40b4bd1b8c77c454ffec0580925c
https://doi.org/10.1007/978-1-4757-0893-6_36
https://doi.org/10.1007/978-1-4757-0893-6_36
Autor:
Francis Johnson, Stephen V. Kolaczkowski, Chamakura V.N.S. Varaprasad, Alex Perry, David E. Budil, Phyllis R. Strauss
Publikováno v:
Biophysical Journal. (1):430-438
The dynamics of a newly synthesized cytosine spin-label and the spin-labeled pentamer TTC*TT have been observed by high-frequency (220GHz) electron paramagnetic resonance (EPR) in aqueous solution at ambient temperature using only nanomolar amounts o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adf1d98567ed101d1cd48fe34384f879
Publikováno v:
Photosynthesis research. 22(1)
We have measured the extent of flash-induced electron transfer from the bacteriochlorophyll dimer, P, to the bacteriopheophytin in the M-subunit, HM, in reaction centers of Rhodopseudomonas viridis. This has been done by measuring the transient state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::911f18456ae29272af6b4bb01e96e887
https://pubmed.ncbi.nlm.nih.gov/24424678
https://pubmed.ncbi.nlm.nih.gov/24424678
Publikováno v:
Antennas and Reaction Centers of Photosynthetic Bacteria ISBN: 9783642826900
A time domain of particular interest in the study of photosynthetic charge separation is from 5 to 100 ns after the initiation of primary photochemistry within the reaction center. This regime is especially significant to the magnetic resonance spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::912b96ce38eacac74da363725268511c
https://doi.org/10.1007/978-3-642-82688-7_28
https://doi.org/10.1007/978-3-642-82688-7_28
Autor:
Michael K. Bowman, Kenneth R. Miller, Stephen V. Kolaczkowski, Ursula H. Smith, Jules S. Jacob
Publikováno v:
Archives of microbiology. 146(2)
The basic cellular organization of Heliobacterium chlorum is described using the freeze-etching technique. Internal cell membranes have not been observed in most cells, leading to the conclusion that the photosynthetic apparatus of these organisms mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c3a08d3749ae77fc9ea459f43cdca15
https://pubmed.ncbi.nlm.nih.gov/3800552
https://pubmed.ncbi.nlm.nih.gov/3800552