Test

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Restricted view
A B Z All
A B Z Bases
A B Z Sgr/Phsph
A B Z Min Bckbn A B Z Base Pair

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Colors
A B Z CPK
A B Z Base/Sgr/Ph

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A B Z Wireframe
A B Z Spacefill

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Views
A B Z Down Helix
A B Z Along Helix

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Smaller view
A B Z Full Turn
A B Z Dinucl step