Tom Wydrzynski
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Explore the profile of Tom Wydrzynski including associated specialties, affiliations and a list of published articles.
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Citations
301
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Recent Articles
11.
Hillier W, McConnell I, Badger M, Boussac A, Klimov V, Dismukes G, et al.
Biochemistry
. 2006 Feb;
45(7):2094-102.
PMID: 16475798
On the basis of equilibrium isotopic distribution experiments using (18)O-labeled water, it is generally accepted that water is the sole substrate for O(2) production by photosystem II (PSII). Nevertheless, recent...
12.
Razeghifard M, Chen M, Hughes J, Freeman J, Krausz E, Wydrzynski T
Biochemistry
. 2005 Aug;
44(33):11178-87.
PMID: 16101302
Photosystem II (PSII) electron transfer (ET) in the chlorophyll d-containing cyanobacterium Acaryochloris marina (A. marina) was studied by time-resolved electron paramagnetic resonance (EPR) spectroscopy at room temperature, chlorophyll fluorescence, and...
13.
Hay S, Wydrzynski T
Biochemistry
. 2005 Jan;
44(1):431-9.
PMID: 15628885
A mutant of the Escherichia coli cytochrome b(562) has been created in which the heme-ligating methionine (Met) at position 7 has been replaced with a histidine (His) (M7H). This protein...
14.
Hay S, Wallace B, Smith T, Ghiggino K, Wydrzynski T
Proc Natl Acad Sci U S A
. 2004 Dec;
101(51):17675-80.
PMID: 15585583
The central photochemical reaction in photosystem II of green algae and plants and the reaction center of some photosynthetic bacteria involves a one-electron transfer from a light-activated chlorin complex to...
15.
Freeman J, Hendry G, Wydrzynski T
Methods Mol Biol
. 2004 Jun;
274:205-15.
PMID: 15187281
Manganese (Mn) and calcium (Ca) are both metal cofactors required for photosynthetic oxygen evolution. The functional roles for these ions in the O2-evolving reactions are not completely known. They are...
16.
Hendry G, Wydrzynski T
Biochemistry
. 2003 May;
42(20):6209-17.
PMID: 12755624
Direct evidence is presented to show that calcium is inherently involved in the binding of one of the two substrate-water molecules to the oxygen-evolving complex in photosystem II. Previous rapid...
17.
Razeghifard M, Wydrzynski T
Biochemistry
. 2003 Jan;
42(4):1024-30.
PMID: 12549923
We have used a two histidine-containing synthetic peptide (Sharp et al. (1998) Proc. Natl. Acad. Sci. U.S.A. 95, 10465-10470) as a scaffold to bind Zn(II) chlorin e6 (ZnCe6) through histidine...
18.
Hendry G, Wydrzynski T
Biochemistry
. 2002 Oct;
41(44):13328-34.
PMID: 12403635
The first direct evidence which shows that both substrate-water molecules are bound to the O(2)-evolving catalytic site in the S(2) state of photosystem II (PSII) is presented. Rapid (18)O isotope...
19.
Clarke S, Funk C, Hendry G, Shand J, Wydrzynski T, Eaton-Rye J
Plant Mol Biol
. 2002 Oct;
50(3):563-72.
PMID: 12369631
The Photosystem II (PSII) core antenna chlorophyll a-binding protein, CP47, contains six membrane-spanning alpha-helices separated by five hydrophilic loops: A-E. To identify important hydrophilic cytosolic regions, oligonucleotide-directed mutagenesis was employed...
20.
Smith P, Peterson S, Masters V, Wydrzynski T, Styring S, Krausz E, et al.
Biochemistry
. 2002 Feb;
41(6):1981-9.
PMID: 11827545
Preparation of a minimum PSII core complex from spinach is described, containing four Mn per reaction center (RC) and exhibiting high O2 evolving activity [approximately 4000 micromol of O2 (mg...