a pocket pair of kings

Pseudomonas stutzeri soluble nitrate reductase alphabeta-subunit is a soluble enzyme with a similar electronic structure at the active light site as the inner membrane-bound alphabetagamma holoenzyme.

[…] Eric stepped in front of Shala, unaware that he was blocking her view. […] “Let me see,” Shala demanded, trying to peer around him.

I mean to stride your steed.