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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1buw-A-142	`sad. +0.31 ruf. -0.33 dom. -0.08 bre. -0.08`	HIS	chainID: A, resSeq: 87, molecule: PROTEIN (HEMOGLOBIN)	oxygen carrier oligomeric count: 4 pocket vol.: 554.0 Å³ d(Fe-oop): 0.055 Å
1buw-A-142	`sad. +0.31 ruf. -0.33 dom. -0.08 bre. -0.08`	NO	chainID: A, resSeq: 143, molecule: NITRIC OXIDE
1buw-B-147	`sad. +0.36 ruf. -0.33 dom. -0.07 bre. -0.09`	HIS	chainID: B, resSeq: 92, molecule: PROTEIN (HEMOGLOBIN)	oxygen carrier oligomeric count: 4 pocket vol.: 572.0 Å³ d(Fe-oop): 0.079 Å
1buw-B-147	`sad. +0.36 ruf. -0.33 dom. -0.07 bre. -0.09`	NO	chainID: B, resSeq: 148, molecule: NITRIC OXIDE
1buw-C-142	`sad. +0.21 ruf. -0.23 dom. -0.07 bre. -0.10`	HIS	chainID: C, resSeq: 87, molecule: PROTEIN (HEMOGLOBIN)	oxygen carrier oligomeric count: 4 pocket vol.: 577.0 Å³ d(Fe-oop): 0.072 Å
1buw-C-142	`sad. +0.21 ruf. -0.23 dom. -0.07 bre. -0.10`	NO	chainID: C, resSeq: 143, molecule: NITRIC OXIDE
1buw-D-147	`sad. +0.22 ruf. -0.20 dom. -0.03 bre. -0.13`	HIS	chainID: D, resSeq: 92, molecule: PROTEIN (HEMOGLOBIN)	oxygen carrier oligomeric count: 4 pocket vol.: 530.0 Å³ d(Fe-oop): 0.058 Å
1buw-D-147	`sad. +0.22 ruf. -0.20 dom. -0.03 bre. -0.13`	NO	chainID: D, resSeq: 148, molecule: NITRIC OXIDE