MCQ on Helix-Loop-Helix (HLH) Domain




The helix-loop-helix (HLH) domain is a protein structural motif involved in DNA binding and protein dimerization. Commonly found in transcription factors, it consists of two alpha helices connected by a loop, enabling the formation of homo- or heterodimers essential for gene regulation and cellular processes. This is an MCQ on Helix-Loop-Helix (HLH) Domain Structure and Functions.

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1. 
The Helix-Loop-Helix (HLH) domain is a structural motif commonly found in:

2. 
The "Helix-Loop-Helix" name of this domain refers to its:

3. 
HLH domains are characterized by the presence of:

4. 
The primary function of HLH domains is to:

5. 
In an HLH domain, the alpha helices are typically involved in:

6. 
The loop region in the HLH domain often plays a crucial role in:

7. 
HLH domains are often involved in the regulation of:

8. 
The dimerization of HLH domains is important for:

9. 
Which of the following transcription factors contains HLH domains and is involved in the regulation of cell cycle and differentiation?

10. 
The alpha helices in the HLH domain are often separated by a loop containing approximately how many amino acids?

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MCQ on Helix-Loop-Helix (HLH) Domain






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