Azurin from " P aeruginosa " is a type I blue copper protein with a molecular mass of 14 kDa, while cytochrome c551 ( 9 kDa ) is a haem-containing cytochrome.
42.
Here he worked with the Professor of Chemical Pathology, Claude Rimmington, in learning the techniques which were to underpin his future research studies on the blood pigment haem and its relation to the disease porphyria.
43.
The theory has been rebuffed medically as suggestions that porphyria sufferers crave the haem in human blood, or that the consumption of blood might ease the symptoms of porphyria, are based on a misunderstanding of the disease.
44.
"' Haem peroxidases "'( or "'heme peroxidases "') are haem-containing enzymes that use hydrogen peroxide as the electron acceptor to catalyse a number of oxidative reactions.
45.
"' Haem peroxidases "'( or "'heme peroxidases "') are haem-containing enzymes that use hydrogen peroxide as the electron acceptor to catalyse a number of oxidative reactions.
46.
"' Heme O "'( or "'haem O "') differs from the closely related heme A by having a methyl group at ring position 8 instead of the formyl group.
47.
"' Haem "'or "'Heme carrier protein 1 "'( HCP1 ) was originally identified as mediating heme-Fe transport although it later emerged that it was a folate transporter.
48.
Haem reversibly binds O 2 with an affinity similar to that of the carotid body, suggesting that haem containing proteins may have a role in O 2, potentially this could be one of the complexes involved in oxidative-phosphorylation.
49.
Haem reversibly binds O 2 with an affinity similar to that of the carotid body, suggesting that haem containing proteins may have a role in O 2, potentially this could be one of the complexes involved in oxidative-phosphorylation.
50.
Confirming this thesis is the fact that the cysteine unit in hemoglobin has remained unchanged in mammals and birds, though all the other amino acids except the one that holds the haem-cradled iron have changed in the course of evolution.
