Sandbox Reserved 640: Difference between revisions

From Proteopedia
Jump to navigationJump to search
No edit summary
No edit summary
Line 8: Line 8:


Leghemoglobin is a 16 kD globin protein containing eight secondary alpha helices, constituted by a heme group(protoporphyrin XI) and a single polypeptide. In its ferrous (reduced state), Leghemoglobin binds oxygen for transportation. (Ref 5). It is hypothesized that Leghemoglobin can be formed by one of the two ways:
Leghemoglobin is a 16 kD globin protein containing eight secondary alpha helices, constituted by a heme group(protoporphyrin XI) and a single polypeptide. In its ferrous (reduced state), Leghemoglobin binds oxygen for transportation. (Ref 5). It is hypothesized that Leghemoglobin can be formed by one of the two ways:
#The Rhizobium bacteroid (Ref 2) is thought to synthesize the heme group in the root nodules of the legume, where it then gives the plant the heme to complete the synthesizing of the Lb <ref name=a />
#The Rhizobium bacteroid <ref name=b>Appleby, C. A. "Leghemoglobin and Rhizobium Respiration." Annual Review of Plant Physiology 35.1 (1984): 443-78. Print.</ref> is thought to synthesize the heme group in the root nodules of the legume, where it then gives the plant the heme to complete the synthesizing of the Lb <ref name=a />
#The plant itself has also been thought to possibly produce the heme itself, in the mytochondria of the plant cells. It then combines with the peptide sequence to complete the whole protein <ref name=a />
#The plant itself has also been thought to possibly produce the heme itself, in the mytochondria of the plant cells. It then combines with the peptide sequence to complete the whole protein <ref name=a />