TABLE 4.

Number of water-molecule environments for each protein-excipient system.

Water contact type	TRIS	TPP	CIT
${\text{W}}_{\text{P}}$	906.9	843.1	837.2
${\text{W}}_{\text{PP}}$	5.2	15.0	15.4
${\text{W}}_{\text{EP}}$	6.4	7.8	11.0
${\text{W}}_{\text{EPP}}$	0.0	0.3	0.5
Total	918.5	866.1	864.1