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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1n90-A-601	`sad. -0.30 ruf. -0.38 dom. +0.01 bre. +0.03`	HIS	chainID: A, resSeq: 51, molecule: NITRITE REDUCTASE	oxidoreductase oligomeric count: 2 pocket vol.: 389.0 Å³ d(Fe-oop): 0.062 Å
1n90-A-601	`sad. -0.30 ruf. -0.38 dom. +0.01 bre. +0.03`	MET	chainID: A, resSeq: 88, molecule: NITRITE REDUCTASE
1n90-B-601	`sad. -0.37 ruf. -0.47 dom. +0.10 bre. +0.08`	HIS	chainID: B, resSeq: 51, molecule: NITRITE REDUCTASE	oxidoreductase oligomeric count: 2 pocket vol.: 416.0 Å³ d(Fe-oop): 0.013 Å
1n90-B-601	`sad. -0.37 ruf. -0.47 dom. +0.10 bre. +0.08`	MET	chainID: B, resSeq: 88, molecule: NITRITE REDUCTASE