Methanogen homoaconitase (, ''methanogen HACN'') is an
enzyme with
systematic name ''(R)-2-hydroxybutane-1,2,4-tricarboxylate hydro-lyase ((1R,2S)-1-hydroxybutane-1,2,4-tricarboxylate-forming)''.
This enzyme
catalyses the following
chemical reaction
: (R)-2-hydroxybutane-1,2,4-tricarboxylate
(1R,2S)-1-hydroxybutane-1,2,4-tricarboxylate (overall reaction)
:: (1a) (''R'')-2-hydroxybutane-1,2,4-tricarboxylate
(''Z'')-but-1-ene-1,2,4-tricarboxylate + H
2O
:: (1b) (''Z'')-but-1-ene-1,2,4-tricarboxylate + H
2O
(1''R'',2''S'')-1-hydroxybutane-1,2,4-tricarboxylate
This enzyme catalyses several reactions in the pathway of
coenzyme-B biosynthesis in methanogenic
archaea
Archaea ( ; singular archaeon ) is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes. Archaea were initially classified as bacteria, receiving the name archaebacteria (in the Archaebac ...
.
References
External links
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