. 2012 Apr 12;7(4):e34666. doi: 10.1371/journal.pone.0034666

Table 4. Distance of active site Ni atom and the center of mass (COM) of the conserved histidine amino acids of Desulfovibrio vulgaris Miyazaki F.

Conserved amino acids of Desulfovibrio vulgaris Miyazaki F	d(Ni-COM) (Å)^b
His 122^a	12.00
His 124^a	11.69
His 127^a	11.46
His 130^a	15.52
His 132^a	15.85

His122, His124, His127, His130, His132 in Desulfovibrio vulgaris Miyazaki F correspond to His102, His104, His107, His110, His112 in T. roseopersicina.

The center of mass is the mean location of the mass in an amino acid residue.