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ID of heme	Distortion Sort by saddling ruffling doming breathing	Axial ligands on heme		Function & structure
1u4h-A-500	`sad. -1.08 ruf. +1.09 dom. +0.05 bre. +0.03`	HIS	chainID: A, resSeq: 102, molecule: Heme-based Methyl-accepting Chemotaxis Protein	unclassified oligomeric count: 1 pocket vol.: 419.0 Å³ d(Fe-oop): 0.066 Å
1u4h-A-500	`sad. -1.08 ruf. +1.09 dom. +0.05 bre. +0.03`	OXY	chainID: A, resSeq: 501, molecule: OXYGEN MOLECULE
1u4h-B-502	`sad. -0.98 ruf. +1.20 dom. -0.07 bre. -0.04`	HIS	chainID: B, resSeq: 102, molecule: Heme-based Methyl-accepting Chemotaxis Protein	unclassified oligomeric count: 1 pocket vol.: 421.0 Å³ d(Fe-oop): 0.063 Å
1u4h-B-502	`sad. -0.98 ruf. +1.20 dom. -0.07 bre. -0.04`	OXY	chainID: B, resSeq: 503, molecule: OXYGEN MOLECULE