This file points to 4 pairs of files of the form    "?jx*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)

Crossing File	Backbone Overlay
1jx4_A	1jx4_A_sse
1jx6_A	1jx6_A_sse
1jx7_A	1jx7_A_sse
1jxc_A	1jxc_A_sse