Assembly Instructions for Polypeptide Models. Academic by Edward J. Barrett

By Edward J. Barrett

Meeting directions for Polypeptide versions presents meeting strategies for? polypeptide chains and for modeling the ?-helix and the parallel and antiparallel ?-pleated sheets.

This textual content is split into 9 chapters and starts off with a quick advent to the elemental unit of polypeptide or protein constitution, that is the amino acid. the following chapters care for the parts of the version process, together with the torsion angles and the uneven ?-carbon atom. the rest chapters current particular directions for the development of loose amino acids, polypeptide finish teams, facet chain teams, secondary constructions, and aspect chain torsion angles.

This publication will end up valuable to protein and peptide scientists, natural chemists, and biochemists.

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Assembly Instructions for Polypeptide Models. Academic Press/Molecular Design Inc. Precision Molecular Models

Meeting directions for Polypeptide versions presents meeting systems for? polypeptide chains and for modeling the ? -helix and the parallel and antiparallel ? -pleated sheets. this article is split into 9 chapters and starts off with a quick creation to the fundamental unit of polypeptide or protein constitution, that's the amino acid.

Additional info for Assembly Instructions for Polypeptide Models. Academic Press/Molecular Design Inc. Precision Molecular Models

Sample text

The model of this structure in Figure 15 also depicts polyglycine in this form, using space-filling hydrogen atoms at the a -carbons.

Remember to align the strands in different directions, as shown schematically below. Figure 14 shows a model of this structure with space-filling hydrogen atoms at each a -carbon, making polyglycine strands. o H3N~ C II /C, a /~ H 0 H J II J /N, N C • • • • • • 'II H 0 /c, /~ Co N /N, /COO- I C II • • • • • • H C-terminus Co 0 N-terminus THE PARALLEL P -PLEATED SHEET To construct a model of the P -parallel pleated sheet, at least two strands must be constructed. In these polypeptides the 0 angles are -119° ( ~O fastener) and the'" angles, +113° ( / 5) • Again, use silicone tubing for the hydrogen bonds connecting the strands 0 In this case the two connected strands run in the same direction.

8cm) long to form the hydrogen bonds connecting the two strands. Remember to align the strands in different directions, as shown schematically below. Figure 14 shows a model of this structure with space-filling hydrogen atoms at each a -carbon, making polyglycine strands. o H3N~ C II /C, a /~ H 0 H J II J /N, N C • • • • • • 'II H 0 /c, /~ Co N /N, /COO- I C II • • • • • • H C-terminus Co 0 N-terminus THE PARALLEL P -PLEATED SHEET To construct a model of the P -parallel pleated sheet, at least two strands must be constructed.

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