gid_	first query scop id
did	second query scop id
fami	fids substring at which the scop domains are related
depth	depth in scop hierarchy at which scop domains are related
len1_n	length of first domain in residues
len2_n	length of second domain
gaps_n	number of gaps in alignment
pid_f	percent sequence identity
SWS_n	Smith Waterman Score (alignment score) calculated using BLOSUM50 matrix
	and gap opening and extension penalties of 12 and 2, respectively
Pseq_f	sequence p value
N_n	number of aligned residues
Ntrim_n	number of aligned residues after 50% trim (should equal one half N_n)
RMS_f	untrimmed RMS of distances between aligned alpha carbons
RMS_trim_f	trimmed RMS (only considering the better matching half of the
	residues)
Prms_f	structure p value calculated from RMS
Prms_trim_f	structure p value calculated from trimmed RMS
Sstr_f	Structural Comparison Score measuring similarity in the structures
Sstr_trim_f	trimmed Sstr (not useful as Sstr does not require trimming)
Pstr_f	structure p value calculated from Sstr
Pstr_trim_f	structure p value calculated from trimmed Sstr