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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
2frf-A-154	`sad. +0.12 ruf. -0.09 dom. -0.19 bre. -0.11`	HIS	chainID: A, resSeq: 93, molecule: Myoglobin	oxygen carrier oligomeric count: 1 pocket vol.: 526.0 Å³ d(Fe-oop): 0.008 Å
2frf-A-154	`sad. +0.12 ruf. -0.09 dom. -0.19 bre. -0.11`	NO2	chainID: A, resSeq: 159, molecule: NITRITE ION