A. Use Swiss PDBViewer (or your favorite structure viewer) to analyze the struct

Question

A. Use Swiss PDBViewer (or your favorite structure viewer) to analyze the structures and answer the following questions. A. Classify the folds of the following proteins. (Each is a single domain. If there is more than one chain or model, only examine one.) For each domain, classify the fold as all a (or mostly a), all b (or mostly b), a/b, or a+b.
1. Rabbit uteroglobin (1RUG)
2. Archaeal uridylate kinase (2AUK)
3. Streptomycal antibacterial polypeptide (3SAP)

B. Examine the following proteins and determine how many domains each polypeptide has. (If there is more than one chain or model, only examine one.) List the residues in each domain (e.g. 17-98, 141-169), and classify each domain (as in part 1).

1. One subunit of human branched chain aminotransferase (4HBA)

2. Escherichia carbenicillin-binding protein (5ECB) 3. One subunit of the enterobacterial ligand-gated ion channel (6ELC)

Explanation / Answer

Ans-A- 1 the folds of the rabbit uteroglobin protein are a/b in sturture as they have both a and b. But a are much more in number.

Ans-2 it has a/b configuration in it's structure.

Ans-3 it has a+b configuration in it's structure.

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