This file points to 4 pairs of files of the form "?qc*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)
Crossing File
Backbone Overlay
1qc7_A
1qc7_A_sse
1qcs_A
1qcs_A_sse
1qcx_A
1qcx_A_sse
1qcz_A
1qcz_A_sse