Polysaccharide alternating, list

The common atomic coordinate files for 3D structure in biochemistry is PDB format. The pdb files of polysaccharides, proteins, and nucleic acids can be retrieved from the Protein Data Bank at RCSB (http //www.rcsb.org/pdb/). On the home page (Figure 4.15), enter PDB ID (check the box query by PDB id only ) or keywords (check the box match exact word ) and click Find a structure button. Alternatively, initiate search/retrieval by selecting SearchLite. On the query page, enter the keyword (e.g., the name of ligand or biomacromolecule) and click Search button. Select the desired entry from the list of hits to access Summary information of the selected molecule. From the Summary information, select Download/Display file and then PDB Text and PDB noncompression format to retrieve the pdb file. In order to display 3D structure online, choose View structure followed by selecting one of 3D display options. The display can be saved in. jpg or. gif image format. 

Table IV lists those yeasts (other than the aforementioned Sporobolomyces sp.) that synthesize polysaccharide-like 0 -phos-phonoglycans along with the various a-g-glycose 1-phosphate end groups found thus far (50). A new aspect of the phosphomannan story is introduced in this table When grown in the absence of added orthophosphate, almost all such yeasts alternatively synthesize neutral a-D-mannans and glucoraannans. Common biogenetic origin of the neutral and phosphorylated mannans and glucomannans is evidenced by similar amounts of g-glucose or its absence in the biopolymers produced by a given strain of yeast.

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