Table 2.

Contacts between molecule 1 and molecule 3 in formation of SpeA1 dimer

Mol1	Mol3
Leu 42 CD2	Glu 91 CD OE2
Leu 89 CB	Tyr 88 CZ, OH
CD1	OH
O	CE2, CZ, CA
Cys 90 CA	Leu 89 O
Cys 90 SG	Cys 90 SG
Glu 91 CD	Leu 41 CD2
OE1	Tyr 88 O
OE2	Leu 41 CD2
	Leu 89 O, C

Intermolecular contact cutoff values: C-C 4.1 Å; C-N 3.8 Å; C-O 3.7 Å; O-O 3.3 Å; O-N 3.4 Å; and N-N 3.4 Å