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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1etp-A-199	`sad. +0.37 ruf. -0.62 dom. -0.04 bre. -0.16`	HIS	chainID: A, resSeq: 18, molecule: CYTOCHROME C4	electron transporter oligomeric count: 1 pocket vol.: 366.0 Å³ d(Fe-oop): 0.045 Å
1etp-A-199	`sad. +0.37 ruf. -0.62 dom. -0.04 bre. -0.16`	MET	chainID: A, resSeq: 66, molecule: CYTOCHROME C4
1etp-A-200	`sad. -0.01 ruf. -0.64 dom. +0.07 bre. -0.16`	HIS	chainID: A, resSeq: 123, molecule: CYTOCHROME C4	electron transporter oligomeric count: 1 pocket vol.: 357.0 Å³ d(Fe-oop): 0.005 Å
1etp-A-200	`sad. -0.01 ruf. -0.64 dom. +0.07 bre. -0.16`	MET	chainID: A, resSeq: 167, molecule: CYTOCHROME C4
1etp-B-199	`sad. +0.45 ruf. -0.50 dom. -0.07 bre. -0.20`	HIS	chainID: B, resSeq: 18, molecule: CYTOCHROME C4	electron transporter oligomeric count: 1 pocket vol.: 349.0 Å³ d(Fe-oop): 0.020 Å
1etp-B-199	`sad. +0.45 ruf. -0.50 dom. -0.07 bre. -0.20`	MET	chainID: B, resSeq: 66, molecule: CYTOCHROME C4
1etp-B-200	`sad. +0.06 ruf. -0.42 dom. +0.10 bre. -0.20`	HIS	chainID: B, resSeq: 123, molecule: CYTOCHROME C4	electron transporter oligomeric count: 1 pocket vol.: 375.0 Å³ d(Fe-oop): 0.019 Å
1etp-B-200	`sad. +0.06 ruf. -0.42 dom. +0.10 bre. -0.20`	MET	chainID: B, resSeq: 167, molecule: CYTOCHROME C4