This file points to 7 pairs of files of the form    "?nb*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)

Crossing File	Backbone Overlay
1nba_A	1nba_A_sse
1nbc_A	1nbc_A_sse
1nbf_A	1nbf_A_sse
1nbj_A	1nbj_A_sse
1nbu_A	1nbu_A_sse
1nbw_A	1nbw_A_sse
1nbw_B	1nbw_B_sse