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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Biochim Biophys Acta. 2012 Sep 6;1829(1):20–28. doi: 10.1016/j.bbagrm.2012.08.009

Figure 2. Active site of yeast RNA polymerase II (2e2h).

Figure 2

Template DNA is cartoon grey, except for the templating nucleotide (black), RNA is cartoon light pink, except for the 3′ nucleotide (hot pink). Substrate GTP is orange sticks. Catalytic Mg2+ cations are solid magenta spheres, catalytic tetrad (Asp481, 483, 485, and 837) is red sticks. Trigger loop is green cartoon, residues Gln1078, Leu1081, and His1085 are green sticks. The rest of amino acids are light teal sticks.