Beta is more strict.
Occasionally, I found when match-1, one have to recenter xmh1 before search next 2nd queue. Program can read such vector library file and compare with a known molecule. This make it possible to search the protein data band without a protein data bank on the disk. After this version, the program not only compare the topology, but also carries out a Ca comparison. If the two proteins are homologous, this improves the comparison matrix.