Eschenmoser proposed a "s
Eschenmoser proposed a "scenario" named for this molecule in which it reacts with DHF to produce sugars in the primordial soup. This molecule's synthesis is achieved by an enzyme with the conserved motif K-K-C-G-H-M, which contains an active site cysteine found within a TIM barrel.  The processes of synthesizing and consuming this molecule take place within specialized peroxisomes named for it. With succinate, this molecule is synthesized by isocitrate lyase. This molecule and acetyl coA are consumed by malate synthase to produce malate, which re-enters the Krebs cycle. FTPE, name this two-carbon molecule that is produced when isocitrate is converted to succinate in its namesake cycle.
Eschenmoser proposed a "scenario" named for this molecule in which it reacts with DHF to produce sugars in the primordial soup.
glyoxylate or glyoxylic acid (accept oxoacetate or oxoacetic acid)