The metabolism of biphenyl structures in lignin by the soil bacterium (Pseudomonas paucimobilis SYK‐6)

FEBS Letters

Katayama, Y.¹  Haraguchi, T.¹  Murayama, A.¹  Nishikawa, S.¹  Morohoshi, N.¹  Yamasaki, M.¹ 

[1] Faculty of Agriculture, Tokyo Noko University, Fuchu, Tokyo, Faculty of Agriculture, Tokyo University, Bunkyo-ku, Tokyo Japan

关键词: Lignin metabolism;    Biphenyl structure;    Syringic acid;    Aromatic ring fission;    Protocatechuate-4;    5-dioxygenase;    (Pseudomonas paucimobilis SYK-6);    DDVA;    2;    2′-dihydroxy-3;    3′-dimethoxy-5;    5′-dicarboxybiphenyl;    OHDDVA;    2;    2′;    3-trihydroxy-3′-methoxy-5;    5′-dicarboxybiphenyl;    DDV;    2;    2′-dihydroxy-3;    3′-dimethoxy-5;    5′-diformylbiphenyl;   

DOI  :  10.1016/0014-5793(88)81369-3

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

In the soil bacterium (Pseudomonas paucimobilis SYK-6), the metabolism of DDVA (biphenyl structure of lignin) and syringic acid (characteristic aromatic ring in hardwood lignin) proceeds via a common intermediate, 3-methylgallic acid. Protocatechuate is also an intermediate in the metabolism of vanillate and p-hydroxybenzoic acid. 3-Methylgallic acid and protocatechuate are the final aromatic intermediates in lignin microbial degradation and these compounds are substrates of protocatechuate-4,5-dioxygenase, which is a key enzyme in obtaining metabolic energy from various structures of lignin in this bacterium.

【 授权许可】

Unknown