4.   c.107.1       DHH phosphoesterases  constituent families have similar domain organization with variable interdomain linker and spatial arrangement of the domains !   
                   DHH phosphoesterases consists of two non-similar domains ! Domain 1 has parallel sheet of 6 strands, order 321456 ! Domain 2 has mixed sheet of 5 strands, order 12345; strands 1 & 4 are antiparallel to the rest
                   2haw  d2hawb1  B:13-31,69-75,118-131,135-151,159-174
                   1wpm  d1wpmb_  B:13-31,69-75,118-131,135-151,159-174
                   1wpn  d1wpnb_  B:13-31,69-75,118-131,135-151,159-174
                   2haw  d2hawa1  A:13-31,69-75,118-131,135-151,159-174
                   1wpm  d1wpma_  A:13-31,69-75,118-131,135-151,159-174
                   1k23  d1k23b_  B:13-31,69-75,118-131,135-151,159-174
                   1k23  d1k23d_  D:13-31,69-75,118-131,135-151,159-174
                   1wpn  d1wpna_  A:13-31,69-75,118-131,135-151,159-174
                   1k23  d1k23a_  A:13-31,69-75,118-131,135-151,159-174
                   1k23  d1k23c_  C:13-31,69-75,118-131,135-151,159-174
                   1i74  d1i74b_  B:12-30,69-75,118-131,135-151,159-174
                   1wpp  d1wppb_  B:13-32,71-77,120-133,137-153,161-176
                   1wpp  d1wppa_  A:13-32,71-77,120-133,137-153,161-176
                   1i74  d1i74a_  A:12-30,69-75,118-131,135-151,159-174
                   1k20  d1k20a_  A:13-32,71-77,120-133,137-153,161-176
                   2haw  d2hawb1  B:13-31,89-97,118-131,135-151,159-174
                   1k23  d1k23a_  A:13-31,89-97,118-131,135-151,159-174
                   1wpn  d1wpna_  A:13-31,89-97,118-131,135-151,159-174
                   1k23  d1k23c_  C:13-31,89-97,118-131,135-151,159-174
                   2haw  d2hawa1  A:13-31,89-97,118-131,135-151,159-174
                   1k23  d1k23b_  B:13-31,89-97,118-131,135-151,159-174
                   1k20  d1k20b_  B:13-32,71-77,120-133,137-153,161-176
                   1k23  d1k23d_  D:13-31,89-97,118-131,135-151,159-174
                   1wpn  d1wpnb_  B:13-31,89-97,118-131,135-151,159-174
                   1wpm  d1wpmb_  B:13-31,89-97,118-131,135-151,159-174
                   1wpm  d1wpma_  A:13-31,89-97,118-131,135-151,159-174
                   1i74  d1i74b_  B:12-30,89-97,118-131,135-151,159-174
                   1wpp  d1wppa_  A:13-32,91-99,120-133,137-153,161-176
                   1wpp  d1wppb_  B:13-32,91-99,120-133,137-153,161-176
                   1k20  d1k20a_  A:13-32,91-99,120-133,137-153,161-176
                   1ir6  d1ir6a_  A:82-100,130-136,186-203,207-222,227-243
                   1k20  d1k20b_  B:13-32,91-99,120-133,137-153,161-176
                   1i74  d1i74a_  A:12-30,89-97,118-131,135-151,159-174
                   1ir6  d1ir6a_  A:82-100,153-160,186-203,207-222,227-243