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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1rqa-A-142	`sad. +0.12 ruf. -0.38 dom. -0.04 bre. -0.19`	HIS	chainID: A, resSeq: 87, molecule: Hemoglobin alpha chain	oxygen carrier oligomeric count: 4 pocket vol.: 529.0 Å³ d(Fe-oop): 0.074 Å
1rqa-A-142	`sad. +0.12 ruf. -0.38 dom. -0.04 bre. -0.19`	NO	chainID: A, resSeq: 150, molecule: NITRIC OXIDE
1rqa-B-147	`sad. +0.17 ruf. -0.05 dom. -0.19 bre. -0.07`	HIS	chainID: B, resSeq: 92, molecule: Hemoglobin beta chain	oxygen carrier oligomeric count: 4 pocket vol.: 570.0 Å³ d(Fe-oop): 0.027 Å
1rqa-B-147	`sad. +0.17 ruf. -0.05 dom. -0.19 bre. -0.07`	NO	chainID: B, resSeq: 150, molecule: NITRIC OXIDE
1rqa-C-142	`sad. +0.16 ruf. -0.43 dom. -0.14 bre. -0.24`	HIS	chainID: C, resSeq: 87, molecule: Hemoglobin alpha chain	oxygen carrier oligomeric count: 4 pocket vol.: 566.0 Å³ d(Fe-oop): 0.051 Å
1rqa-C-142	`sad. +0.16 ruf. -0.43 dom. -0.14 bre. -0.24`	NO	chainID: C, resSeq: 150, molecule: NITRIC OXIDE
1rqa-D-147	`sad. +0.26 ruf. -0.28 dom. -0.12 bre. -0.16`	HIS	chainID: D, resSeq: 92, molecule: Hemoglobin beta chain	oxygen carrier oligomeric count: 4 pocket vol.: 591.0 Å³ d(Fe-oop): 0.052 Å
1rqa-D-147	`sad. +0.26 ruf. -0.28 dom. -0.12 bre. -0.16`	NO	chainID: D, resSeq: 150, molecule: NITRIC OXIDE