TABLE 2.

Interfamilial comparison scores for representative members of families 7 to 17^a

Protein 1	Family	Protein 2	Family	Comparison scores (SD)	% Identity	No. of residues compared	No. of gaps
FucP	7, FGHS	Gtr5	1, SP	8	21	125	0
NasA	8, NNP	YidT	14, ACS	13	21	150	0
Ph84	9, PHS	Itr1	1, SP	10	24	586	19
NupG	10, NHS	CscB	5, OHS	12	19	415	8
YhjX	11, OFA	Ykw1	13, MCP	11	18	402	5
NanT	12, SHS	CitA	6, MHS	10	25	407	11
Mot1	13, MCP	NanT	12, SHS	10	17	494	5
GudT	14, ACS	Bmr1	3, DHA12	12	22	389	8
YheO	15, UMF	Sge1	2, DHA14	12	18	543	5
PcaK	16, AAHS	GudT	14, ACS	13	18	438	5
YycB	17, CP	NarK	8, NNP	10	21	408	6

^aComparison scores expressed in standard deviations (SD) were determined with the GAP program with 500 random shuffles. Family and protein abbreviations are as indicated in Table 1 and Tables 3 to 17, respectively, with the exception of proteins from families 2 (DHA14) and 3 (DHA12), which are tabulated in reference 60.