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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1i5u-A-201	`sad. -0.03 ruf. +0.29 dom. +0.03 bre. -0.27`	HIS	chainID: A, resSeq: 39, molecule: CYTOCHROME B5	electron transporter oligomeric count: 1 pocket vol.: 526.0 Å³ d(Fe-oop): 0.003 Å
1i5u-A-201	`sad. -0.03 ruf. +0.29 dom. +0.03 bre. -0.27`	HIS	chainID: A, resSeq: 63, molecule: CYTOCHROME B5