Abstract submission
Where & What to Submit
ATTENTION: Before completing your
submission, read the instructions below carefully, and examine the sample
abstract below.
Click below for copies of the instructions
in:
Step by Step Instructions:
At the abstract submission website:
1. The presenting author should enter all contact information
and ensure that it is accurate.
2. Enter a title for your presentation in the title box. Rich text may
be used.
3. Enter the author information in the authors and author locations box.
Rich text may be used.
4. Enter your abstract in the abstract box (see abstract formatting
instructions below). You may type text directly into this box, or
copy and paste plain ASCII text and add any rich text formatting that you may
require.
5. Graphics will not be accepted for abstracts this year.
Instructions for authors and author locations:
1. List of authors, separated by commas: given name,
initial(s), surname. Underline the presenting author's name.
2. Numbered list of institutions/businesses and short addresses, with carriage
return after each institution. Indicate the address of each author by
placing the appropriate number (in superscript font) after that author's name
in the list (see sample abstract below).
Instructions for abstract structure:
1. Abstract text (no more than 300 words)
2. References/bibliography (optional) - citations to references in the text
should be made with superscripted numbers (see sample abstract below).
- Abstracts should be 300 words or less.
- Enter abstract text into the abstract box on the website: please use superscript, subscript, italics, bold and
underline where appropriate.
- Left justify everything. Do not use extra returns.
- Use upper and lower case lettering throughout. Do not use all caps unless
it is to identify a trade name, registered name or other name that mandates
all caps. In the title of the paper be sure to capitalize the first letter of
each word as needed.
- Keep the abstract text in one paragraph. If literature citations are
needed, indicate them in superscripted text. Footnotes should be
numbered accordingly. Credits, if any,
should be added at the end of the abstract, but not as a new paragraph.
- There are no graphics accepted for the abstract this year.
- In the event that you have trouble with the website, you may use Microsoft
Word or Text format. Keep the same point size throughout, and model your
abstract on the sample below. This abstract can be submitted by
attaching the file to the abstract submission page.
Sample abstract:
- Title (entered in title box):
Multi-Frequency EPR Analysis of Dipolar and Exchange Interactions
Between Managese and Tyrosine In The S2 Yz
State of Photosystems II
Authors and author locations (entered in authors box):
K.V. Lakshmi,1 Sandra S. Eaton2 and Harry A.
Frank.3
1. Yale University, Department of Chemistry, New Haven, CT 06520-8107
2. University of Denver, Department of Chemistry, Denver, CO 80208-2436
3. University of Connecticut, Department of Chemistry, Storrs, CT
06269-4060
- Abstract (entered in abstract box):
- Acetate-inhibited photosystem II, upon room temperature illumination,
exhibits a 240 G wide X-band EPR signal at 10 K.1
This EPR signal arises from an interaction between the S2
state of the Mn4 cluster and an oxidized
tyrosine residue, Yz.2
In the present study, the exchange and dipolar interactions
between the two paramagnetic species are simulated at X and Q-band
frequencies utilizing second-order perturbation theory.3
The positions and relative intensities of the hyperfine lines in the S = ½ S2
-state multiline EPR signal are accurately simulated by
including g-anisotropy and four sets of axially symmetric
55Mn hyperfine tensors. These parameters are
then used to simulate the dipolar and exchange interactions giving rise to
the broad experimental S2 Yz
EPR signal at X and Q-band frequencies. A precise distance determination
between the Mn4 Cluster and Yz
in the O2-evolving complex better enables us to elucidate the direct
involvement of Yz in water-oxidation
chemistry. Supported by NIH GM32715 and GM36442 (Yale) and NIH GM21156
(Denver).
- 1. Boussac and Rutherford, Biochem., 1988, 27, 3476.
- 2. Tang et al., J. Amer. Chem. Soc., 1996, 118, 7638.
- 3. Eaton et al., J. Magn. Res., 1983, 52, 435.
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