FACTOID # 6: Michigan is ranked 22nd in land area, but since 41.27% of the state is composed of water, it jumps to 11th place in total area.
 
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Encyclopedia > Epimer

In chemistry, an epimer is a stereoisomer that has a different configuration at only one of several stereogenic centers. For example, the sugars α-D-glucopyranose and α-D-galactopyranose are epimers. The -OH group on their fourth carbon has a different orientation.-1... Stereoisomerism is the arrangement of atoms in molecules whose connectivity remains the same but their arrangement in space is different in each isomer. ... In chemistry a stereogenic centre is a carbon atom covalently bonded to four atoms or groups, all of which have different atomic numbers. ...


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Relationships between Isomerised Cycloadduct and Epimers (186 words)
Relationships between the Cycloadduct, it's isomer, the epimeric Dihydroxytriones and the Ethynylcarbinols
The schemes below illustrate the relationships of the epimeric ketones and ethynlycarbinols formed in the sequences.
The end result, expectedly is that the same anthracycline (15) will be formed as the epimeric hydrogens at C-10a (as well as C-6a) are removed by lead tetra-acetate in the oxidation.
HIV Databases Review Article 1995 (4445 words)
The EpiMer algorithm predicted putative T cell epitopes from protein sequences for HIV-1 nef, gp160, gag p55, and tat that required fewer peptides and therefore fewer amino acid residues to be synthesized than either AMPHI-predicted peptides or overlapping peptides.
An additional application of EpiMer might be to evaluate the effect of pressure from the immune system of the individual on the HIV quasi-species of that individual.
The EpiMer peptides are shown in bold, and are slightly shorter than the stated predictions because the midpoint of the amino terminal 11-mer reading frame of the predicted peptide to the midpoint of the carboxy terminal 11-mer reading frame are designated in this picture, rather than the full length of the predicted peptide.
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