| Module | | M00165 | Reductive pentose phosphate cycle (Calvin cycle) | 
 | M00168 | CAM (Crassulacean acid metabolism), dark | 
 | M00169 | CAM (Crassulacean acid metabolism), light | 
 | M00170 | C4-dicarboxylic acid cycle, phosphoenolpyruvate carboxykinase type | 
 | M00171 | C4-dicarboxylic acid cycle, NAD - malic enzyme type | 
 | M00172 | C4-dicarboxylic acid cycle, NADP - malic enzyme type | 
 | M00377 | Reductive acetyl-CoA pathway (Wood-Ljungdahl pathway) | 
 | M00422 | Acetyl-CoA pathway, CO2 => acetyl-CoA | 
 | M00567 | Methanogenesis, CO2 => methane | 
 | M00621 | Glycine cleavage system | 
 | M00978 | Ornithine-ammonia cycle | 
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