In the assembly of c-type cytochromes, essential for energy metabolism, for example, the cytochrome c maturation process requires ligation of heme (iron protoporphirin IX) to reduced thiols of the Cys-X-X-Cys-His motif of apocytochrome [ 2 ].

In shape it is a tiny square box of silver, studded outside with eight small balas-rubies.

I was having dinner with the village elders at the mukhiya's place when one of the servants announced that I had a visitor.

He had the same pile of curly hair, but he was clean-shaven with a heavy, obstinate jowl.