Table 3. Direct protein-protein intermolecular hydrogen bonds in the GmSPI2 crystal structure.

No	Residue, atom	Residue, atom	Distance(Å)
1	Val4, O	Gly32(a), N	2.83
2	Thr6, N	Gly30(a), O	2.90
3	Cys24, N	Ala29(a), O	3.06
4	Ser21, N	Leu40(b), OXT	2.77
5	Ser21, Oγ	Leu40(b), O	2.58
6	Glu8, Oε2	Lys15(c), Nζ	2.42
7	Asn27, Nδ2	Glu38(c), Oε1	3.07

^(a)x +½, −y + ½, −z.

^(b)−x, y + ½, −z+½.

^(c)−x+½, −y, z+½.