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spinqualitylabelsall models 1ACJ Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

Let us color the main forms of regular secondary in this protein. Alpha helix appears red, beta sheet in yellow.

Point added for a correct answer:
Points for an incorrect answer:
Ignore the questions' coefficients:

How many alpha helices are in this structure?

	None
	One
	Four