Thiamine pyrophosphate (TPP) family, BZL_OCoD_HPCL subfamily, TPP-binding module; composed of proteins similar to benzaldehyde lyase (BZL), oxalyl-CoA decarboxylase (OCoD) and 2-hydroxyphytanoyl-CoA lyase (2-HPCL). Pseudomonas fluorescens biovar I BZL cleaves the acyloin linkage of benzoin producing 2 molecules of benzaldehyde and enabling the Pseudomonas to grow on benzoin as the sole carbon and energy source. OCoD has a role in the detoxification of oxalate, catalyzing the decarboxylation of oxalyl-CoA to formate. 2-HPCL is a peroxisomal enzyme which plays a role in the alpha-oxidation of 3-methyl-branched fatty acids, catalyzing the cleavage of 2-hydroxy-3-methylacyl-CoA into formyl-CoA and a 2-methyl-branched fatty aldehyde. All these enzymes depend on Mg2+ and TPP for activity.
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