Updated annotation (from data): unsaturated glucuronide lyase acting on chondroitin/heparin disaccharides (EC 3.2.1.180) Rationale: Specifically important in carbon source Hyaluronic acid sodium salt from Streptococcus equi; carbon source Chondroitin sulfate A sodium salt from bovine trachea; carbon source Heparin sodium salt from porcine intestinal mucosa. It is 51% identical to C6Y0D8 which preferentially cleaves 1,4-type unsaturated glucuronides that arise during heparin degradation (PMC3931040). B. thetaiotaomicron is believed to degrade chondroitin sulfate via unsaturated 1,3-glucoronides (PMID:25041429). This in combination with the mutant phenotypes suggest that BT3348 has a broader specificity. Original annotation: putative unsaturated glucuronyl hydrolase (NCBI ptt file) Type 1: Protein-coding gene Located on scaffold 241, + strand, nucleotides 4,316,255 to 4,317,457 See nucleotide sequence around BT3348 or for all of scaffold 241