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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
4d1n-A-750	`sad. -0.52 ruf. -0.77 dom. +0.70 bre. +0.02`	CYS	chainID: A, resSeq: 420, molecule: NITRIC OXIDE SYNTHASE, BRAIN	oxidoreductase oligomeric count: 4 pocket vol.: 520.0 Å³ d(Fe-oop): 0.043 Å
4d1n-A-750	`sad. -0.52 ruf. -0.77 dom. +0.70 bre. +0.02`	Not assigned.
4d1n-B-750	`sad. -0.63 ruf. -0.66 dom. +0.69 bre. +0.05`	CYS	chainID: B, resSeq: 420, molecule: NITRIC OXIDE SYNTHASE, BRAIN	oxidoreductase oligomeric count: 4 pocket vol.: 503.0 Å³ d(Fe-oop): 0.037 Å
4d1n-B-750	`sad. -0.63 ruf. -0.66 dom. +0.69 bre. +0.05`	Not assigned.
4d1n-C-750	`sad. -0.60 ruf. -0.80 dom. +0.64 bre. +0.04`	CYS	chainID: C, resSeq: 420, molecule: NITRIC OXIDE SYNTHASE, BRAIN	oxidoreductase oligomeric count: 4 pocket vol.: 520.0 Å³ d(Fe-oop): 0.036 Å
4d1n-C-750	`sad. -0.60 ruf. -0.80 dom. +0.64 bre. +0.04`	Not assigned.
4d1n-D-750	`sad. -0.61 ruf. -0.58 dom. +0.66 bre. +0.05`	CYS	chainID: D, resSeq: 420, molecule: NITRIC OXIDE SYNTHASE, BRAIN	oxidoreductase oligomeric count: 4 pocket vol.: 524.0 Å³ d(Fe-oop): 0.036 Å
4d1n-D-750	`sad. -0.61 ruf. -0.58 dom. +0.66 bre. +0.05`	Not assigned.