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fumarate hydratase C-terminal domain-containing protein
This family consists of the C terminal region of several bacterial fumarate hydratase proteins (FumA and FumB). Fumarase, or fumarate hydratase (EC 4.2.1.2), is a component of the citric acid cycle. In facultative anaerobes such as Escherichia coli, fumarase also engages in the reductive pathway from oxaloacetate to succinate during anaerobic growth [1]. [1]. 11133938. Oxygen- and growth rate-dependent regulation of Escherichia coli fumarase (FumA, FumB, and FumC) activity. Tseng CP, Yu CC, Lin HH, Chang CY, Kuo JT;. J Bacteriol 2001;183:461-467. (from Pfam)
L(+)-tartrate dehydratase subunit beta
L(+)-tartrate dehydratase (L-TTD) catalyzes the conversion from (R,R)-tartrate to oxaloacetate
Involved in the tartrate degradation pathway
FumA C-terminus/TtdB family hydratase beta subunit
A number of Fe-S cluster-containing hydro-lyases share a conserved motif, including argininosuccinate lyase, adenylosuccinate lyase, aspartase, class I fumarate hydratase (fumarase), and tartrate dehydratase (see PROSITE:PDOC00147). This model represents a subset of closely related proteins or modules, including the E. coli tartrate dehydratase beta chain and the C-terminal region of the class I fumarase (where the N-terminal region is homologous to the tartrate dehydratase alpha chain). The activity of archaeal proteins in this subfamily has not been established.
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