Table 1 Barrel packing topologies observed in heme-binding members of the ferredoxin α + β barrel superfamily
From: Evolutionary relationships between heme-binding ferredoxin α + β barrels
Arrangement of ferredoxin-like domains in the barrels | Heme-binding ferredoxin α + β barrel family representatives | Barrel topology | β-strand of the ferredoxin-like domain involved in barrel packing |
|---|---|---|---|
Homo-dimerization | IsdG and IsdI-like (PDB identifiers 2ZDO, 2ZDP, 3LGM, 3LGN, 3QGP, 4FNH, 4FNI) | Type-1 | β2---β4; β4---β2 |
MhuD (PDB identifiers 3HX9, 4NL5) | |||
Hetero-dimerization | Siroheme decarboxylase (PDB identifier 4UN1) | ||
Dimerization of tandemly duplicated and fused domains | HmoB (PDB identifiers 4FVC, 4JOU, 4OZ5), Chlorite dismutase (PDB identifiers 2VXH, 3NN1, 3NN2, 3NN3, 3NN4, 3Q08, 3Q09, 3QPI, 4 M05, 4 M06, 4 M07, 4 M08, 4 M09), Dyp-type peroxidase (PDB identifier 2D3Q, 2IIZ 3AFV, 3MM1, 3MM2, 3MM3, 3QNR, 3QNS, 3VEC, 3VED, 3VEF, 3VEG, 3VXI, 3VXJ, 4 AU9, 4G2C, 4GRC, 4GS1, 4GT2, 4GU7, 4HOV, 4UZI, 4W7J, 4W7K, 4W7L, 4W7M, 4W7N, 4W7O), EfeB (PDB identifiers 2Y4E, 2Y4F, 3O72), Siroheme decarboxylase (PDB identifier 4CZC) | ||
Aldoxime dehydratase (PDB identifiers 3A15, 3A16, 3A17, 3A18, 3 W08) | Type-2 | β2---β2; β4---β4 |