Biomaterial Database

Degradation of non-phenolic beta-o-4 lignin substructure model compounds by Acinetobacter sp. 1992

N Vasudevan, and A Mahadevan

Centre for Advanced Studies in Botany, University of Madras, India.

Acinetobacter sp. utilized non-phenolic beta-o-4-model compounds, 2-methoxy-4-formylphenoxyacetic acid and veratrylglycerol-beta-guaiacyl ether (VGE) as sole carbon source. Vanillin, vanillic acid, protocatechuic acid and catechol were detected in the 2-methoxy-4-formylphenoxyacetic acid amended culture. Veratryl alcohol, veratraldehyde, veratric acid, vanillic acid, protocatechuic acid, catechol and guaiacol were identified from veratrylglycerol-beta-guaiacyl ether culture. Acinetobacter sp. produced catechol 1,2-dioxygenase and protocatechuate 3,4-dioxygenase that cleaved catechol and protocatechuic acid, respectively.

UI	MeSH Term	Description	Entries
D008031	Lignin	The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed)	Lignins
D010105	Oxygenases	Oxidases that specifically introduce DIOXYGEN-derived oxygen atoms into a variety of organic molecules.	Oxygenase
D011520	Protocatechuate-3,4-Dioxygenase	An enzyme that catalyzes the oxidation of protocatechuate to 3-carboxy-cis-cis-muconate in the presence of molecular oxygen. It contains ferric ion. EC 1.13.11.3.	Protocatechuate 3,4 Dioxygenase
D002396	Catechols	A group of 1,2-benzenediols that contain the general formula R-C6H5O2.	Pyrocatechols,o-Dihydroxybenzenes,ortho-Dihydroxybenzenes,o Dihydroxybenzenes,ortho Dihydroxybenzenes
D000150	Acinetobacter	A genus of gram-negative bacteria of the family MORAXELLACEAE, found in soil and water and of uncertain pathogenicity.	Herellea,Mima
D001592	Benzyl Alcohols	Alcohols derived from the aryl radical (C6H5CH2-) and defined by C6H5CHOH. The concept includes derivatives with any substituents on the benzene ring.	Phenylcarbinols,Phenylmethanols,Alcohols, Benzyl
D014641	Vanillic Acid	A flavoring agent. It is the intermediate product in the two-step bioconversion of ferulic acid to vanillin. (J Biotechnol 1996;50(2-3):107-13).	4-Hydroxy-3-methoxybenzoic Acid,p-Hydroxy-m-methoxy-benzoic Acid,4 Hydroxy 3 methoxybenzoic Acid,Acid, 4-Hydroxy-3-methoxybenzoic,Acid, Vanillic,Acid, p-Hydroxy-m-methoxy-benzoic,p Hydroxy m methoxy benzoic Acid
D049308	Dioxygenases	Non-heme iron-containing enzymes that incorporate two atoms of OXYGEN into the substrate. They are important in biosynthesis of FLAVONOIDS; GIBBERELLINS; and HYOSCYAMINE; and for degradation of AROMATIC HYDROCARBONS.	Dioxygenase
D050548	Catechol 1,2-Dioxygenase	An enzyme that catalyzes the oxidation of catechol to muconic acid with the use of Fe3+ as a cofactor. This enzyme was formerly characterized as EC 1.13.1.1 and EC 1.99.2.2.	Catechol 1,2-Oxygenase,Catechol-1,2-Oxygenase,Pyrocatechase,Pyrocatechol 1,2-Dioxygenase,1,2-Dioxygenase, Catechol,1,2-Dioxygenase, Pyrocatechol,1,2-Oxygenase, Catechol,Catechol 1,2 Dioxygenase,Catechol 1,2 Oxygenase,Pyrocatechol 1,2 Dioxygenase
D062385	Hydroxybenzoates	Benzoate derivatives substituted by one or more hydroxy groups in any position on the benzene ring.	Hydroxybenzoic Acids,Acids, Hydroxybenzoic