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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
4u74-A-501	`sad. +0.70 ruf. -0.12 dom. -0.20 bre. +0.04`	HIS	chainID: A, resSeq: 346, molecule: Indoleamine 2,3-dioxygenase 1	oxidoreductase oligomeric count: 1 pocket vol.: 525.0 Å³ d(Fe-oop): 0.024 Å
4u74-A-501	`sad. +0.70 ruf. -0.12 dom. -0.20 bre. +0.04`	PIM	chainID: A, resSeq: 502, molecule: 4-PHENYL-1H-IMIDAZOLE
4u74-B-501	`sad. +0.69 ruf. -0.20 dom. -0.27 bre. +0.04`	HIS	chainID: B, resSeq: 346, molecule: Indoleamine 2,3-dioxygenase 1	oxidoreductase oligomeric count: 1 pocket vol.: 517.0 Å³ d(Fe-oop): 0.026 Å
4u74-B-501	`sad. +0.69 ruf. -0.20 dom. -0.27 bre. +0.04`	PIM	chainID: B, resSeq: 502, molecule: 4-PHENYL-1H-IMIDAZOLE