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select ligand

ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1f04-A-201	`sad. +0.27 ruf. +0.18 dom. -0.07 bre. -0.26`	HIS	chainID: A, resSeq: 39, molecule: CYTOCHROME B5	electron transporter oligomeric count: 1 pocket vol.: 542.0 Å³ d(Fe-oop): 0.016 Å
1f04-A-201	`sad. +0.27 ruf. +0.18 dom. -0.07 bre. -0.26`	HIS	chainID: A, resSeq: 63, molecule: CYTOCHROME B5