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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
6q2u-A-201	`sad. +0.26 ruf. -0.09 dom. -0.13 bre. -0.09`	HIS	chainID: A, resSeq: 18, molecule: Cytochrome c4	electron transporter oligomeric count: 1 pocket vol.: 374.0 Å³ d(Fe-oop): 0.046 Å
6q2u-A-201	`sad. +0.26 ruf. -0.09 dom. -0.13 bre. -0.09`	MET	chainID: A, resSeq: 57, molecule: Cytochrome c4
6q2u-A-202	`sad. +0.08 ruf. -0.56 dom. -0.08 bre. -0.08`	HIS	chainID: A, resSeq: 114, molecule: Cytochrome c4	electron transporter oligomeric count: 1 pocket vol.: 377.0 Å³ d(Fe-oop): 0.033 Å
6q2u-A-202	`sad. +0.08 ruf. -0.56 dom. -0.08 bre. -0.08`	MET	chainID: A, resSeq: 158, molecule: Cytochrome c4