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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1bl9-A-601	`sad. -0.25 ruf. -0.37 dom. +0.01 bre. +0.10`	HIS	chainID: A, resSeq: 51, molecule: NITRITE REDUCTASE	oxidoreductase oligomeric count: 2 pocket vol.: 347.0 Å³ d(Fe-oop): 0.013 Å
1bl9-A-601	`sad. -0.25 ruf. -0.37 dom. +0.01 bre. +0.10`	MET	chainID: A, resSeq: 88, molecule: NITRITE REDUCTASE
1bl9-B-601	`sad. +0.01 ruf. -0.42 dom. +0.02 bre. +0.11`	HIS	chainID: B, resSeq: 51, molecule: NITRITE REDUCTASE	oxidoreductase oligomeric count: 2 pocket vol.: 359.0 Å³ d(Fe-oop): 0.014 Å
1bl9-B-601	`sad. +0.01 ruf. -0.42 dom. +0.02 bre. +0.11`	MET	chainID: B, resSeq: 88, molecule: NITRITE REDUCTASE