Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 6: Q13P (page 177)

Question: Classify the following proteins as α, β, or α/β:

(a) KcsAK+channel (Fig. 10-4)

(b) thioredoxin (Fig. 23-11)

Short Answer

Expert verified
  1. It is an alpha protein.
  2. It is alpha/ beta protein.

Step by step solution

01

Step 1: Function of alpha protein

The AFP's primary function is to transport heavy metal ions and different insoluble compounds, including copper and nickel, fatty acids, bilirubin, and medicines, through the fetus’ blood circulation.

02

 Classifying the protein  

a) TheKcsAK+ Channel is made up of four identical subunits that form a tetramer. There are two alpha units in each subunit.

Therefore, is an alpha protein.

03

Classification of thioredoxin protein

b) The alpha/beta protein thioredoxin is an example. Redox reactions are catalyzed.

Hence, thioredoxin is an alpha/beta protein.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Hydrophobic residues usually appear at the first and fourth positions in the seven-residue repeats of polypeptides that form coiled coils.

(a) Why do polar or charged residues usually appear in the remaining five positions?

(b) Why is the sequenceIle–Gln–Glu–Val–Glu–Arg–Asp more likely than the sequenceTrp–Gln–Glu–Tyr–Glu–Arg–Asp to appear in a coiled coil?

Question: Experiments in mice suggest that pyro glutamylation (see Problem 19 ) increases the rate of aggregation of amyloid-βprotein. Propose an explanation for this observation.

Helices can be described by the notation nm , wheren is the number of residues per helical turn andm is the number of atoms, includingH , in the ring that is closed by the hydrogen bond.

(a) What is this notation for the helix?

(b) Is the310 helix steeper or shallower than the helix?

The genetically engineered proteins that accumulate in bacterial inclusion bodies (Fig. 5-2) form amyloid structures. Such proteins are often difficult to recover in functional form from the bacteria. Explain.

Explain why a protein such as RNase A can be easily denatured and renatured in vitro, whereas most proteins that are denatured do not refold properly in vitro.
See all solutions

Recommended explanations on Biology Textbooks

Reproduction

Read Explanation

Control of Gene Expression

Read Explanation

Cell Cycle

Read Explanation

Ecology

Read Explanation

Biological Organisms

Read Explanation

Cell Communication

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free