Mechanisms of Cytoplasmic Hemoglobin and Myoglobin Function

CYTOPLASMIC HEMOGLOBINS 2 1 8 Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 Occurrence . .. . . . .. .... 2 1 9 Plant Hemoglobins ..... 2 1 9 HEMOGLOBIN-DEPENDENT SySTEMS 22 1 Hemoglobins Function in States of Partial Oxygenation . 221 MYOGLOBIN-FACILiTATED OXYGEN DIFFUSION 224 MYOGLOBIN-MEDIATED OXIDATIVE PHOSPHORYLATION . . . . . . . . . . . . . 225 Isolated Cardiac Myocytes .... . . . . ... . .. .. . . . . . . . . .. . . . . . . ..... .. 225 Soybean Root Nodules 226 HEMOGLOBIN-MEDIATED SULFIDE UTILIZATION . . . ..... 227 HEMOGLOBINS AS POTENTIAL TERMINAL OXIDASES 228 Yeast Hemoglobin . . . . . . ...... .. . . . . . 228 Bacterial Hemoglobin . . . . . . . 228 Horseradish Peroxidase ......... . . . ..... 231 Myoglobin ... 232 Ferryl Hemoglobin in Tissue 232 MYOGLOBIN AND LEGHEMOGLOBIN-ASSOCIATED IRON 233 A Protein from Pigeon Breast Muscle '' ' ' ' ' ' ' ''''''''' ' ' ' ' ' ' ' ' ' ' ' ' ' ' '''''''''''''' ' ' ' ' '''''''''' ' ' ' ' ' ' ' 233 Chela ted Iron from Soybean Root Nodules 233 Chelated Iron/rom Symbiont-Harboring Mollusc Gills 234 PERIPLASMIC HEMOGLOBIN 234