Here's an image from that same protein, zooming in on a beta turn and with four amino acids highlighted in ball and stick representation. I've drawn around one amino acid.
With respect to the beta turn, which statement describes the circled amino acid?

Question

Here's an image from that same protein, zooming in on a beta turn and with four amino acids highlighted in ball and stick representation. I've drawn around one amino acid.  
 With respect to the beta turn, which statement describes the circled amino acid?

Accepted Answer

In an N- to C- direction, this is the third amino acid. The arrowhead is position 1.

Answer

In an N- to C- direction, this is the second amino acid. The arrowhead is position 4.

Answer

In an N- to C- direction, this is the second amino acid. The arrowhead is position 1.

Answer

In an N- to C- direction, this is the third amino acid. The arrowhead is position 4.

Crowdly

Here's an image from that same protein, zooming in on a beta turn and with four ...

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