Next page protein structure

DNA is one type of nucleic acid. The other type of nucleic acid is called RNA (short for ribonucleic acid). RNA is present throughout a cell. It works closely with DNA to produce the proteins in the body. Table 2.3, on the next page, shows the structures of RNA and DNA. 

The probable structure of one of the components of RNR and its mode of action leading to the formation of the tyrosinyl radical 122 (TyO") bound to the protein are represented on the next page (left part). The right part of the scheme concerns the hydroxylation of methane (RH = CH4). Note that the active species has the Fe =0 structure that is very similar to the one of cyctochrome P450 in the hemic series. 

The Structure of DNA Elucidation of the three-dimensional structure of DNA helped researchers understand how this molecule conveys information that can be faithfully replicated from one generation to the next. Tb see the secondary structure of double-stranded DNA, go to the Protein Data Bank website (www.rcsb.org pdb). Use the PDB identifiers listed below to retrieve the data pages for the two forms of DNA... 

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