Chapter 22, Problem 59P

Interpretation Introduction

(a)

Interpretation:

The effect of soraphen A and its varying concentration on the fatty acid synthesis should be determined.

Concept introduction:

Acetyl-CoA carboxylase (ACC) is a biotin-dependent enzyme, which catalyzes the conversion of acetyl-CoA into malonyl-CoA, in the presence of bicarbonate ion. It has two catalytic activities, carboxyltransferase and biotin carboxylase. This enzyme is found in the chloroplasts of the plants, and endoplasmic reticulum of the animals. The main motive of ACC is to synthesize malonyl CoA for the synthesis of fatty acids.

Interpretation Introduction

(b)

Interpretation:

The effect of soraphen A on fatty acid oxidation must be determined.

Concept introduction:

Acetyl-CoA carboxylase (ACC) is a biotin-dependent enzyme, which catalyzes the conversion of acetyl-CoA into malonyl-CoA, in the presence of bicarbonate ion. It has two catalytic activities, carboxyltransferase and biotin carboxylase. This enzyme is found in the chloroplasts of the plants, and endoplasmic reticulum of the animals. The main motive of ACC is to synthesize malonyl CoA for the synthesis of fatty acids.

Interpretation Introduction

(c)

Interpretation:

The results of graph B should be explained keeping in mind that sorpahen A inhibits acetyl CoA carboxylase.

Concept introduction:

Acetyl-CoA carboxylase (ACC) is a biotin-dependent enzyme, which catalyzes the conversion of acetyl-CoA into malonyl-CoA, in the presence of bicarbonate ion. It has two catalytic activities, carboxyltransferase and biotin carboxylase. This enzyme is found in the chloroplasts of the plants, and endoplasmic reticulum of the animals. The main motive of ACC is to synthesize malonyl CoA for the synthesis of fatty acids.

Interpretation Introduction

(d)

Interpretation:

The effect on phospholipid synthesis by inhibition of carboxylase must be determined.

Concept introduction:

Acetyl-CoA carboxylase (ACC) is a biotin-dependent enzyme, which catalyzes the conversion of acetyl-CoA into malonyl-CoA, in the presence of bicarbonate ion. It has two catalytic activities, carboxyltransferase and biotin carboxylase. This enzyme is found in the chloroplasts of the plants, and endoplasmic reticulum of the animals. The main motive of ACC is to synthesize malonyl CoA for the synthesis of fatty acids.

Interpretation Introduction

(e)

Interpretation:

The effect of phospholipid synthesis on cell’s viability must be determined.

Concept introduction:

Acetyl-CoA carboxylase (ACC) is a biotin-dependent enzyme, which catalyzes the conversion of acetyl-CoA into malonyl-CoA, in the presence of bicarbonate ion. It has two catalytic activities, carboxyltransferase and biotin carboxylase. This enzyme is found in the chloroplasts of the plants, and endoplasmic reticulum of the animals. The main motive of ACC is to synthesize malonyl CoA for the synthesis of fatty acids.

Interpretation Introduction

(f)

Interpretation:

The result of soraphen A on cancer cell viability should be determined.

Concept introduction:

Acetyl-CoA carboxylase (ACC) is a biotin-dependent enzyme, which catalyzes the conversion of acetyl-CoA into malonyl-CoA, in the presence of bicarbonate ion. It has two catalytic activities, carboxyltransferase and biotin carboxylase. This enzyme is found in the chloroplasts of the plants, and endoplasmic reticulum of the animals. The main motive of ACC is to synthesize malonyl CoA for the synthesis of fatty acids.