This file points to 3 pairs of files of the form    "?n3*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)

Crossing File	Backbone Overlay
1n3j_A	1n3j_A_sse
1n3k_A	1n3k_A_sse
1n3l_A	1n3l_A_sse