490 INDEX
Infrared spectroscopy, 158, 178, 203,
450–451, 453
Inner-sphere:
electron transfer, 23, 23f
reaction rates, 11–12
Interchange mechanism, 10, 12
Introns, 58–59, 63, 238–261, 240f, 246f,
248t, 256f, 259t, 301
Inverted region, see electron transfer
and Marcus theory
Iodide ions, 7
Ion channels, see potassium (K+) ion
channels
Ion exchange chromatography, 40
Ionization chambers, X-ray absorption
spectrometry, 80
Ionophore(s), 190 –191t
Ion pump(s), see active transport,
potassium (K+) ion channels, 198f
Iridium (Ir), 11t, 16, 254
Iron (Fe):
abundance, 2–3, 2t, 343
characteristics of, 5t, 343
chelating agents for, see
ethylenediaminetetracetate
(EDTA)
cytochromes and, 4, 5t, 117–118, 166 –
167, 173, 360, 384f
cytochrome bc 1 and, 389–407, 393f,
406f
cytochrome b(6)f and, 382–388, 385f,
387t
cytochrome c and, 408–428, 412f,
421f
cytochrome c oxidase and, 129, 428–
454, 436f
cytochromeP450 and, 361–372, 364f,
370f
electron transfer, 5t, 23–24, 26, 58,
117, 129, 143–146, 350, 365, 378–
379, 378f, 383, 385–386, 385f,
388–391, 396–397, 399, 402, 405,
406f, 408, 410–411, 413–416, 420,
422, 424–427, 429–430, 437–439,
440f, 444f, 449–450, 453–454
enzymes and, 82
EPR studies, 17, 129, 137–139, 362–
364, 366–367, 376, 378–379, 387,
433, 447
essentiality, 2–3, 2t
ferritin and, 45, 458– 459
[FexSy] clusters, see also iron sulfur
clusters 4, 21–22, 21f, 24, 132,
136, 457f
heme(s) and, 117–118, 129, 166 –168,
343–345, 354, 357f, 359, 384f,
387t, 409f, 431f, 433f
hemerythrin, 459
hemoglobin/myoglobin and, 4, 5t, 17,
82, 343–359
high-spin, 17
hydrogenase and, 22, 172
low-spin, 17
M bCO and, 147–14 8, 358
methane monooxygenase and,
459–463
model compounds and, 90, 350 –359,
350f, 351t, 352t, 372–382, 439–
440, 442f, 446t, 448t
Mössbauer spectroscopy and, 22, 76,
132–139, 153
μ-oxo dimer, 346, 350, 353–355, 354f,
355f
nitrogenase and, 4, 5t, 22, 137–139,
188
organometallics, 20f
oxidation states, 14, 82, 134, 139, 168,
346, 359
porphyrins and, 17, 344f, 346, 353–
356, 355f, 356f, 357f, 359, 375f,
377f, 384f, 409f
redox potentials, 346
Rieske iron sulfur protein (ISP), 22,
167–168, 383–384, 385f, 386–387,
387t, 389–391, 394–396, 399,
406f, 408
storage and transport, 45, 189, 458,
465
Iron-oxo proteins, 458 – 465
ferritin, 45, 458–459
hemerythrin, 459
methane monooxygenase, 459– 463
transferrin, 458
Iron-sulfur clusters, 21–22, 136, 454–
455, 458
aconitase and, 21, 44, 132, 454–458,
455f
characteristics of, 135t, 136