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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
2zxw-A-515	`sad. -0.48 ruf. -0.14 dom. +0.18 bre. -0.21`	HIS	chainID: A, resSeq: 61, molecule: Cytochrome c oxidase subunit 1	oxidoreductase oligomeric count: 13 pocket vol.: 560.0 Å³ d(Fe-oop): 0.073 Å
2zxw-A-515	`sad. -0.48 ruf. -0.14 dom. +0.18 bre. -0.21`	HIS	chainID: A, resSeq: 378, molecule: Cytochrome c oxidase subunit 1
2zxw-A-516	`sad. -0.39 ruf. -0.13 dom. +0.42 bre. -0.42`	HIS	chainID: A, resSeq: 376, molecule: Cytochrome c oxidase subunit 1	oxidoreductase oligomeric count: 13 pocket vol.: 723.0 Å³ d(Fe-oop): 0.148 Å
2zxw-A-516	`sad. -0.39 ruf. -0.13 dom. +0.42 bre. -0.42`	PER	chainID: A, resSeq: 520, molecule: PEROXIDE ION
2zxw-N-515	`sad. -0.57 ruf. -0.04 dom. +0.19 bre. -0.28`	HIS	chainID: N, resSeq: 61, molecule: Cytochrome c oxidase subunit 1	oxidoreductase oligomeric count: 13 pocket vol.: 603.0 Å³ d(Fe-oop): 0.053 Å
2zxw-N-515	`sad. -0.57 ruf. -0.04 dom. +0.19 bre. -0.28`	HIS	chainID: N, resSeq: 378, molecule: Cytochrome c oxidase subunit 1
2zxw-N-516	`sad. -0.23 ruf. -0.06 dom. +0.39 bre. -0.37`	HIS	chainID: N, resSeq: 376, molecule: Cytochrome c oxidase subunit 1	oxidoreductase oligomeric count: 13 pocket vol.: 715.0 Å³ d(Fe-oop): 0.161 Å
2zxw-N-516	`sad. -0.23 ruf. -0.06 dom. +0.39 bre. -0.37`	PER	chainID: N, resSeq: 520, molecule: PEROXIDE ION