Biomaterial Database

The nitrogenase system of Spirillum lipoferum. 1978

P W Ludden, and Y Okon, and R H Burris

The nitrogenase system of Spirillum lipoferum was separated into three components, the normal Mo-Fe and Fe proteins as well as an activating factor for the Fe protein. The rate of activation is increased by Mn2+ or by an excess of Mg2+, and the process requires ATP.

UI	MeSH Term	Description	Entries
D008667	Metalloproteins	Proteins that have one or more tightly bound metal ions forming part of their structure. (Dorland, 28th ed)	Metalloprotein
D009591	Nitrogenase	An enzyme system that catalyzes the fixing of nitrogen in soil bacteria and blue-green algae (CYANOBACTERIA). EC 1.18.6.1.	Dinitrogenase,Vanadium Nitrogenase,Nitrogenase, Vanadium
D004789	Enzyme Activation	Conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1, activation by ions (activators); 2, activation by cofactors (coenzymes); and 3, conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme.	Activation, Enzyme,Activations, Enzyme,Enzyme Activations
D000114	Acetylene	The simplest two carbon alkyne with the formula HCCH.	Ethyne
D013139	Spirillum	A genus of gram-negative, curved and spiral-shaped bacteria found in stagnant, freshwater environments. These organisms are motile by bipolar tufts of flagella having a long wavelength and about one helical turn. Some species of Spirillum cause a form of RAT-BITE FEVER.