WHY DOES NATURE NOT USE THE PORPHYRIN LIGAND IN VITAMIN-B12

[1] Abeles R. H., 1979, Vitamin B12, P373

[2] Babior B. M., 1982, B12, V2, P263

[3] MECHANISM OF COBALAMIN-DEPENDENT REARRANGEMENTS [J]. ACCOUNTS OF CHEMICAL RESEARCH, 1975, 8 (11) : 376 - 384

[4] BABIOR BM, 1979, VITAMIN B12, P461

[5] RELATION BETWEEN COBALT-CARBON BOND LENGTHENING AND CONFORMATIONAL-CHANGES IN OCTAHEDRAL NEOPENTYLCOBALOXIMES - CRYSTAL AND MOLECULAR-STRUCTURE OF BIS(DIMETHYLGLYOXIMATO)-NEOPENTYL(TRIMETHYLPHOSPHINE)COBALT(III) [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1982, (12): : 2549 - 2551

[6] THE CHEMISTRY OF VITAMIN-B12 .17. THE EFFECT OF STERIC DISTORTION OF THE COBALT-CARBON BOND ON THE PK VALUES AND SPECTRA OF ORGANOCOBALAMINS [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1980, (11): : 2259 - 2266

[7] THE CHEMISTRY OF VITAMIN-B12 .18. NATURE OF THE EQUILIBRIA EXHIBITED BY ORGANOCOBALAMINS [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1980, (11): : 2267 - 2273

[8] THE CHEMISTRY OF VITAMIN-B12 .19. LABILIZATION OF THE COBALT-CARBON BOND IN ORGANOCOBALAMINS BY STERIC DISTORTIONS - NEOPENTYLCOBALAMIN AS A MODEL FOR LABILIZATION OF THE VITAMIN-B12 COENZYMES [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1980, (11): : 2274 - 2281

[9] RADICAL MECHANISM FOR THE DECOMPOSITION OF RUOEP(CH2CH3)2 - DETERMINATION OF THE METAL-CARBON BOND-DISSOCIATION ENERGY [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1986, 108 (06) : 1332 - 1333

[10] ENERGY PRODUCTION IN ANAEROBIC ORGANISMS [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1970, 9 (02) : 138 - +

[1] Abeles R. H., 1979, Vitamin B12, P373

[2] Babior B. M., 1982, B12, V2, P263

[3] MECHANISM OF COBALAMIN-DEPENDENT REARRANGEMENTS [J]. ACCOUNTS OF CHEMICAL RESEARCH, 1975, 8 (11) : 376 - 384

[4] BABIOR BM, 1979, VITAMIN B12, P461

[5] RELATION BETWEEN COBALT-CARBON BOND LENGTHENING AND CONFORMATIONAL-CHANGES IN OCTAHEDRAL NEOPENTYLCOBALOXIMES - CRYSTAL AND MOLECULAR-STRUCTURE OF BIS(DIMETHYLGLYOXIMATO)-NEOPENTYL(TRIMETHYLPHOSPHINE)COBALT(III) [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1982, (12): : 2549 - 2551

[6] THE CHEMISTRY OF VITAMIN-B12 .17. THE EFFECT OF STERIC DISTORTION OF THE COBALT-CARBON BOND ON THE PK VALUES AND SPECTRA OF ORGANOCOBALAMINS [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1980, (11): : 2259 - 2266

[7] THE CHEMISTRY OF VITAMIN-B12 .18. NATURE OF THE EQUILIBRIA EXHIBITED BY ORGANOCOBALAMINS [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1980, (11): : 2267 - 2273

[8] THE CHEMISTRY OF VITAMIN-B12 .19. LABILIZATION OF THE COBALT-CARBON BOND IN ORGANOCOBALAMINS BY STERIC DISTORTIONS - NEOPENTYLCOBALAMIN AS A MODEL FOR LABILIZATION OF THE VITAMIN-B12 COENZYMES [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1980, (11): : 2274 - 2281

[9] RADICAL MECHANISM FOR THE DECOMPOSITION OF RUOEP(CH2CH3)2 - DETERMINATION OF THE METAL-CARBON BOND-DISSOCIATION ENERGY [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1986, 108 (06) : 1332 - 1333

[10] ENERGY PRODUCTION IN ANAEROBIC ORGANISMS [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1970, 9 (02) : 138 - +