Mechanistic Studies of Agmatine Deiminase from Multiple Bacterial Species

Justin E. Jones; Christina J. Dreyton; Heather Flick; Corey P. Causey; Paul R. Thompson

doi:10.1021/bi101405y

Mechanistic Studies of Agmatine Deiminase from Multiple Bacterial Species

Biochemistry ◽

10.1021/bi101405y ◽

2010 ◽

Vol 49 (43) ◽

pp. 9413-9423 ◽

Cited By ~ 11

Author(s):

Justin E. Jones ◽

Christina J. Dreyton ◽

Heather Flick ◽

Corey P. Causey ◽

Paul R. Thompson

Keyword(s):

Bacterial Species ◽

Mechanistic Studies ◽

Agmatine Deiminase

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Mechanistic studies of the agmatine deiminase from Listeria monocytogenes

Biochemical Journal ◽

10.1042/bcj20160221 ◽

2016 ◽

Vol 473 (11) ◽

pp. 1553-1561 ◽

Cited By ~ 5

Author(s):

Charles A. Soares ◽

Bryan Knuckley

Keyword(s):

Listeria Monocytogenes ◽

Catalytic Mechanism ◽

Mechanistic Studies ◽

New Class ◽

Enzyme Superfamily ◽

Agmatine Deiminase ◽

Inhibition Studies

Mechanistic and inhibition studies of the agmatine deiminase found in Listeria monocytogenes reveal a novel catalytic mechanism for the guanidinium-modifying enzyme superfamily. The results of the present study suggest that a new class of mechanism-based inactivators is needed.

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Structural analysis of the photosynthetic membrane from Ectothiorhodospira halochloris

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010007727x ◽

1983 ◽

Vol 41 ◽

pp. 740-741

Author(s):

H. Engelhardt ◽

R. Guckenberger ◽

W. Baumeister

Keyword(s):

Lattice Structure ◽

Bacterial Species ◽

Hexagonal Lattice ◽

Reaction Centre ◽

Photosynthetic Membrane ◽

Rhodopseudomonas Viridis ◽

Photosynthetic Membranes ◽

Ectothiorhodospira Halochloris ◽

Main Components

Bacterial photosynthetic membranes contain, apart from lipids and electron transport components, reaction centre (RC) and light harvesting (LH) polypeptides as the main components. The RC-LH complexes in Rhodopseudomonas viridis membranes are known since quite seme time to form a hexagonal lattice structure in vivo; hence this membrane attracted the particular attention of electron microscopists. Contrary to previous claims in the literature we found, however, that 2-D periodically organized photosynthetic membranes are not a unique feature of Rhodopseudomonas viridis. At least five bacterial species, all bacteriophyll b - containing, possess membranes with the RC-LH complexes regularly arrayed. All these membranes appear to have a similar lattice structure and fine-morphology. The lattice spacings of the Ectothiorhodospira haloohloris, Ectothiorhodospira abdelmalekii and Rhodopseudomonas viridis membranes are close to 13 nm, those of Thiocapsa pfennigii and Rhodopseudomonas sulfoviridis are slightly smaller (∼12.5 nm).

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