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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
4u9g-A-201	`sad. -0.29 ruf. -0.49 dom. +0.83 bre. -0.37`	HIS	chainID: A, resSeq: 103, molecule: NO-binding heme-dependent sensor protein	unclassified oligomeric count: 1 pocket vol.: 454.0 Å³ d(Fe-oop): 0.064 Å
4u9g-A-201	`sad. -0.29 ruf. -0.49 dom. +0.83 bre. -0.37`	CMO	chainID: A, resSeq: 203, molecule: CARBON MONOXIDE
4u9g-B-201	`sad. -0.36 ruf. -0.77 dom. +0.65 bre. -0.18`	HIS	chainID: B, resSeq: 103, molecule: NO-binding heme-dependent sensor protein	unclassified oligomeric count: 1 pocket vol.: 448.0 Å³ d(Fe-oop): 0.147 Å
4u9g-B-201	`sad. -0.36 ruf. -0.77 dom. +0.65 bre. -0.18`	Not assigned.