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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
4hpa-A-201	`sad. +0.30 ruf. -0.52 dom. +0.02 bre. -0.12`	HIS	chainID: A, resSeq: 59, molecule: Nitrophorin-4	oxidoreductase oligomeric count: 1 pocket vol.: 468.0 Å³ d(Fe-oop): 0.013 Å
4hpa-A-201	`sad. +0.30 ruf. -0.52 dom. +0.02 bre. -0.12`	H2S	chainID: A, resSeq: 202, molecule: HYDROSULFURIC ACID