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. Author manuscript; available in PMC: 2013 Feb 21.
Published in final edited form as: Biochemistry. 2012 Feb 8;51(7):1518–1531. doi: 10.1021/bi2018305

Table 2.

MCD features of ferric and ferrous holo-Rv0203-His compared to six-coordinate, bis-His-ligated cytochrome b5 in both oxidation states.

Protein (ref.) Ligands Ox. State Soret/nm (Δε/H/(mM cm T)-1) Visible/nm (Δε/H/(mM cm T)-1)
Rv0203-His (this work) His, His Fe(III) 402 (32.2), 421 (-36.4) 551 (4.6), 570 (-5.1)
Rv0203-His (this work) His, His Fe(II) 430 (18.2) 549 (59.1), 558 (-60.8)
Cytochrome b5 (32) His, His Fe(III) 405 (68.4), 418 (-98.0) 553 (9.0), 571 (-14.5)
Cytochrome b5 (32) His, His Fe(II) 425 (15.0) 552 (160.1), 561 (-171.0)