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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
2ibj-A-201	`sad. +0.61 ruf. -0.18 dom. +0.03 bre. -0.08`	HIS	chainID: A, resSeq: 39, molecule: Cytochrome b5	electron transporter oligomeric count: 1 pocket vol.: 537.0 Å³ d(Fe-oop): 0.030 Å
2ibj-A-201	`sad. +0.61 ruf. -0.18 dom. +0.03 bre. -0.08`	HIS	chainID: A, resSeq: 63, molecule: Cytochrome b5