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alpha-1 antitrypsin is...

`alpha-1` antitrypsin is

A

an antacid

B

an enzyme

C

used to treat arthritis

D

used to treat emphysema

Text Solution

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The correct Answer is:
### Step-by-Step Text Solution: 1. **Definition of Alpha-1 Antitrypsin**: Alpha-1 antitrypsin is a protein that functions primarily as a protease inhibitor. 2. **Classification**: This protein belongs to the Serpin superfamily, which is a class of proteins known for their ability to inhibit proteases. 3. **Genetic Encoding**: In humans, alpha-1 antitrypsin is encoded by the Serpina 1 gene. This gene provides the instructions for producing the alpha-1 antitrypsin protein. 4. **Function of Alpha-1 Antitrypsin**: As a protease inhibitor, alpha-1 antitrypsin plays a crucial role in protecting tissues from enzymes of inflammatory cells, which can contribute to respiratory complications. 5. **Clinical Relevance**: Alpha-1 antitrypsin is used in the treatment of certain diseases, including conditions like emphysema (often referred to as M5Cma in the transcript). It helps to inhibit enzymes that can cause damage to the lungs. 6. **Mechanism of Action**: By inhibiting these enzymes, alpha-1 antitrypsin prevents the degradation of lung tissue, thereby reducing respiratory complications associated with its deficiency. 7. **Conclusion**: Therefore, alpha-1 antitrypsin is a significant protein in the human body that helps manage inflammatory responses and protect lung function.
### Step-by-Step Text Solution: 1. **Definition of Alpha-1 Antitrypsin**: Alpha-1 antitrypsin is a protein that functions primarily as a protease inhibitor. 2. **Classification**: This protein belongs to the Serpin superfamily, which is a class of proteins known for their ability to inhibit proteases. 3. **Genetic Encoding**: In humans, alpha-1 antitrypsin is encoded by the Serpina 1 gene. This gene provides the instructions for producing the alpha-1 antitrypsin protein. ...
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