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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: J Biol Inorg Chem. 2013 Jan 19;18(3):289–297. doi: 10.1007/s00775-012-0973-1

FIG. 1.

FIG. 1

Ser-41 introduces an additional H-bond in the network linking Ω loop 40-to-57 (yellow) to propionate 7 in Fe(II) cyt c. An additional H-bond between the γ-hydroxyl of Ser-41 and the δ-NH2 of Asn-52 is introduced to the H-bond network that also includes propionate 7 (cyan) of the heme (green) pyrrole ring A (A), Tyr-67, Met-80 and a water molecule (red sphere). Selected sidechains are labeled and shown as sticks with carbon in salmon, oxygen in red, nitrogen in blue and sulfur in yellow. The 71-to-85 Ω loop is shown in orange. Drawn from PDB entry 3NWV.