| D | d4bfld2 | Alpha and beta proteins (a/b) | Flavodoxin-like | Class I glutamine amidotransferase-like | Catalase, C-terminal domain | Catalase, C-terminal domain | (Escherichia coli BL21(DE3) ) [TaxId: 469008 ], | SCOPe (2.08) |
| D | d4bfld1 | Multi-domain proteins (alpha and beta) | Heme-dependent catalase-like | Heme-dependent catalase-like | Heme-dependent catalases | Catalase II | (Escherichia coli BL21(DE3) ) [TaxId: 469008 ], | SCOPe (2.08) |
| C | d4bflc2 | Alpha and beta proteins (a/b) | Flavodoxin-like | Class I glutamine amidotransferase-like | Catalase, C-terminal domain | Catalase, C-terminal domain | (Escherichia coli BL21(DE3) ) [TaxId: 469008 ], | SCOPe (2.08) |
| C | d4bflc1 | Multi-domain proteins (alpha and beta) | Heme-dependent catalase-like | Heme-dependent catalase-like | Heme-dependent catalases | Catalase II | (Escherichia coli BL21(DE3) ) [TaxId: 469008 ], | SCOPe (2.08) |
| B | d4bflb2 | Alpha and beta proteins (a/b) | Flavodoxin-like | Class I glutamine amidotransferase-like | Catalase, C-terminal domain | Catalase, C-terminal domain | (Escherichia coli BL21(DE3) ) [TaxId: 469008 ], | SCOPe (2.08) |
| B | d4bflb1 | Multi-domain proteins (alpha and beta) | Heme-dependent catalase-like | Heme-dependent catalase-like | Heme-dependent catalases | Catalase II | (Escherichia coli BL21(DE3) ) [TaxId: 469008 ], | SCOPe (2.08) |
| A | d4bfla2 | Alpha and beta proteins (a/b) | Flavodoxin-like | Class I glutamine amidotransferase-like | Catalase, C-terminal domain | Catalase, C-terminal domain | (Escherichia coli BL21(DE3) ) [TaxId: 469008 ], | SCOPe (2.08) |
| A | d4bfla1 | Multi-domain proteins (alpha and beta) | Heme-dependent catalase-like | Heme-dependent catalase-like | Heme-dependent catalases | Catalase II | (Escherichia coli BL21(DE3) ) [TaxId: 469008 ], | SCOPe (2.08) |