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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1fsl-A-144	`sad. +0.33 ruf. -0.76 dom. -0.10 bre. -0.03`	HIS	chainID: A, resSeq: 92, molecule: LEGHEMOGLOBIN A	oxygen carrier oligomeric count: 1 pocket vol.: 573.0 Å³ d(Fe-oop): 0.247 Å
1fsl-A-144	`sad. +0.33 ruf. -0.76 dom. -0.10 bre. -0.03`	NIO	chainID: A, resSeq: 145, molecule: NICOTINIC ACID
1fsl-B-144	`sad. +0.26 ruf. -0.63 dom. -0.28 bre. -0.08`	HIS	chainID: B, resSeq: 92, molecule: LEGHEMOGLOBIN A	oxygen carrier oligomeric count: 1 pocket vol.: 584.0 Å³ d(Fe-oop): 0.089 Å
1fsl-B-144	`sad. +0.26 ruf. -0.63 dom. -0.28 bre. -0.08`	NIO	chainID: B, resSeq: 145, molecule: NICOTINIC ACID