Chapter 6 Gene Expression: Translation
Date Issued
2000
Date
2000
Author(s)
Wang, Yue-Wen
DOI
246246/2006092815540061
Abstract
1. Proteins are built from amino acids held together by peptide bonds. The amino acids confer shape and properties to the protein.
2. Two or more polypeptide chains may associate to form a protein complex. Each cell type has characteristic proteins that are associated with its function.
3. All amino acids (except proline) have a common structure (Figure 6.1).
a. The α-carbon is bonded to:
i. An amino group (NH2), which is usually charged at cellular pH (NH3+).
ii. A carboxyl group (COOH), which is also usually charged at cellular pH (COO-).
iii. A hydrogen atom (H).
iv. An R group, which is different for each amino acid, and confers distinctive properties. The R groups in an amino acid chain give polypeptides their structural and functional properties.
Publisher
臺北市:國立臺灣大學農藝學系
Type
learning object
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