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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
4u9b-A-201	`sad. -0.38 ruf. -0.75 dom. +0.63 bre. -0.13`	NO	chainID: A, resSeq: 202, molecule: NITRIC OXIDE	unclassified oligomeric count: 1 pocket vol.: 478.0 Å³ d(Fe-oop): 0.205 Å
4u9b-A-201	`sad. -0.38 ruf. -0.75 dom. +0.63 bre. -0.13`	Not assigned.