1. d.185.1 LuxS/MPP-like metallohydrolase Share the same "active site motif" HxxEH located in the first core helix, but differ in one of the zinc-binding residues ! LuxS/MPP-like metallohydrolase core: beta-alpha-beta(2)-alpha(2); 2 layers: alpha/beta 2fge d2fgeb4 B:45-54,58-67,115-124,125-143,234-242 2fge d2fgea4 A:45-54,58-67,115-124,125-143,234-242 1q2l d1q2la1 A:531-538,546-557,600-610,612-627,698-707 1hr9 d1hr9g1 G:27-34,39-50,98-107,107-125,199-206 1q2l d1q2la4 A:52-60,65-76,125-134,134-152,230-238 3cx5 d3cx5l2 L:246-255,258-266,325-335,339-358,431-438 1hr9 d1hr9e1 E:27-34,39-50,98-107,107-125,199-206 1hr9 d1hr9c1 C:27-34,39-50,98-107,107-125,199-206 1hr9 d1hr9a1 A:27-34,39-50,98-107,107-125,199-206 1p84 d1p84a2 A:246-255,258-266,325-335,339-358,431-438 3cx5 d3cx5a2 A:246-255,258-266,325-335,339-358,431-438 1nu1 d1nu1a1 A:22-31,33-43,93-103,105-120,194-202 1pp9 d1pp9b1 B:32-39,43-55,103-113,115-130,203-210 1sqv d1sqvb1 B:32-39,43-55,103-113,115-130,203-210 1hr6 d1hr6a1 A:27-34,39-50,98-107,107-125,199-206 1kyo d1kyol2 L:245-253,257-268,324-334,338-357,430-437 1l0l d1l0lb1 B:32-39,43-55,103-113,115-130,203-210 1hr8 d1hr8c1 C:27-34,39-50,98-107,107-125,199-206 1hr6 d1hr6c1 C:27-34,39-50,98-107,107-125,199-206 1sqv d1sqva1 A:22-30,33-43,93-103,105-120,194-202 1pp9 d1pp9o1 O:32-39,43-55,103-113,115-130,203-210 1hr8 d1hr8a1 A:27-34,39-50,98-107,107-125,199-206 1ppj d1ppjo1 O:32-39,43-55,103-113,115-130,203-210 1hr8 d1hr8g1 G:27-34,39-50,98-107,107-125,199-206 1hr8 d1hr8e1 E:27-34,39-50,98-107,107-125,199-206 1hr6 d1hr6e1 E:27-34,39-50,98-107,107-125,199-206 3cxh d3cxhl2 L:246-255,258-266,325-335,339-358,431-438 1kb9 d1kb9a2 A:246-255,258-266,325-335,339-358,431-438 1ezv d1ezva2 A:245-254,257-265,324-334,338-357,430-437 1hr6 d1hr6g1 G:27-34,39-50,98-107,107-125,199-206 1hr7 d1hr7a1 A:27-34,39-50,98-107,107-125,199-206 2a06 d2a06o1 O:32-39,43-55,103-113,115-130,203-210 1sqx d1sqxb1 B:32-39,43-55,103-113,115-130,203-210 1sqp d1sqpb1 B:32-39,43-55,103-113,115-130,203-210 2a06 d2a06b1 B:32-39,43-55,103-113,115-130,203-210 1ppj d1ppjb1 B:32-39,43-55,103-113,115-130,203-210 2ibz d2ibza2 A:246-255,258-266,325-335,339-358,431-438 1hr7 d1hr7c1 C:27-34,39-50,98-107,107-125,199-206 1ntz d1ntzb1 B:32-39,43-55,103-113,115-130,203-210 1sqb d1sqbb1 B:32-39,43-55,103-113,115-130,203-210 1qcr d1qcrb1 B:32-39,43-55,103-113,115-130,203-210 1hr7 d1hr7g1 G:27-34,39-50,98-107,107-125,199-206 1kyo d1kyoa2 A:245-254,257-265,324-334,338-357,430-437 1hr7 d1hr7e1 E:27-34,39-50,98-107,107-125,199-206 1ntk d1ntkb1 B:32-39,43-53,103-113,115-130,203-210 3bcc d3bccb1 B:32-39,43-55,103-113,112-130,203-210 2fyu d2fyub1 B:32-39,43-55,103-113,115-130,203-210 1hr9 d1hr9f1 F:34-41,46-58,106-116,115-133,207-215 1ntm d1ntma1 A:22-30,33-45,93-103,105-120,194-202 1sqq d1sqqb1 B:32-39,43-55,103-113,115-130,203-210 1l0n d1l0nb1 B:32-39,43-55,103-113,115-130,203-210 1bgy d1bgym1 M:22-30,33-45,93-103,105-120,194-202 1bgy d1bgya1 A:22-30,33-45,93-103,105-120,194-202 1kyo d1kyol1 L:36-43,47-58,99-108,111-129,204-212 1sqp d1sqpa1 A:22-30,33-45,93-103,105-120,194-202 2bcc d2bcca1 A:22-31,33-45,93-103,105-120,194-202 1sqq d1sqqa1 A:22-30,33-45,93-103,105-120,194-202 1pp9 d1pp9n1 N:22-30,33-45,93-103,105-120,194-202 1sqx d1sqxa1 A:22-30,33-45,93-103,105-120,194-202 1sqb d1sqba1 A:22-31,33-45,93-103,105-120,194-202 1hr9 d1hr9h1 H:34-41,46-58,106-116,118-133,207-215 2fyu d2fyua1 A:22-31,33-45,93-103,105-120,194-202 1bcc d1bccb1 B:32-39,43-55,103-113,112-130,203-210 1pp9 d1pp9a1 A:22-30,33-45,93-103,105-120,194-202 1hr9 d1hr9d1 D:34-41,46-58,106-116,118-133,207-215 1hr9 d1hr9b1 B:34-41,46-58,106-116,118-133,207-215 1hr6 d1hr6b1 B:34-41,46-58,106-116,118-133,207-215 1hr8 d1hr8b1 B:34-41,46-58,106-116,118-133,207-215 1hr7 d1hr7f1 F:34-41,46-58,106-116,118-133,207-215 1hr8 d1hr8f1 F:34-41,46-58,106-116,118-133,207-215 1hr6 d1hr6f1 F:34-41,46-58,106-116,118-133,207-215 1hr7 d1hr7b1 B:34-41,46-58,106-116,118-133,207-215 1hr8 d1hr8h1 H:34-41,46-58,106-116,118-133,207-215 1hr7 d1hr7h1 H:34-41,46-58,106-116,118-133,207-215 1hr6 d1hr6h1 H:34-41,46-58,106-116,118-133,207-215 1ppj d1ppjn1 N:22-30,33-45,93-103,105-120,194-202 1l0n d1l0na1 A:22-30,33-45,93-103,105-120,194-202 1hr6 d1hr6d1 D:34-41,46-58,106-116,118-133,207-215 1ntz d1ntza1 A:22-30,33-45,93-103,105-120,194-202 1p84 d1p84b1 B:17-23,27-39,85-95,97-112,184-191 1hr7 d1hr7d1 D:34-41,46-58,106-116,118-133,207-215 2bcc d2bccb1 B:32-39,43-55,103-113,112-130,203-210 1hr8 d1hr8d1 D:34-41,46-58,106-116,118-133,207-215 1bcc d1bcca1 A:22-30,33-45,93-103,105-120,194-202 1ppj d1ppja1 A:22-30,33-45,93-103,105-120,194-202 3cxh d3cxha1 A:36-42,47-59,100-110,112-128,205-212 2a06 d2a06n1 N:22-31,33-45,93-103,105-120,194-202 1ntk d1ntka1 A:22-30,33-45,93-103,105-120,194-202 3bcc d3bcca1 A:22-30,33-45,93-103,105-120,194-202 1be3 d1be3a1 A:22-30,33-45,93-103,107-120,194-202 3cx5 d3cx5m1 M:17-23,27-39,85-95,97-112,184-191 3cxh d3cxhm1 M:17-23,27-39,85-95,97-112,184-191 3cx5 d3cx5b1 B:17-23,27-39,85-95,97-112,184-191 1ezv d1ezvb1 B:17-23,27-39,85-95,97-112,184-191 1ezv d1ezva1 A:36-43,47-58,99-108,111-127,204-212 2a06 d2a06a1 A:22-30,33-45,93-103,105-120,194-202 1l0l d1l0la1 A:22-30,33-45,93-103,105-120,194-202 2ibz d2ibzb1 B:17-23,27-39,85-95,97-112,184-191 1ntm d1ntmb1 B:32-39,43-53,103-113,115-130,203-210 2a06 d2a06a2 A:238-246,250-262,316-327,327-349,420-427 1pp9 d1pp9n2 N:238-246,250-262,316-327,327-349,420-427 1kyo d1kyob1 B:17-22,27-37,85-95,97-112,184-191 1ppj d1ppja2 A:238-246,250-262,316-327,327-349,420-427 1ppj d1ppjn2 N:238-246,250-262,316-327,327-349,420-427 1sqp d1sqpa2 A:238-246,250-262,316-327,327-349,420-427 1qcr d1qcra1 A:22-29,33-45,93-103,105-120,194-201 1pp9 d1pp9a2 A:238-246,250-262,316-327,327-349,420-427 2a06 d2a06n2 N:238-246,250-262,316-327,327-349,420-427 3cxh d3cxha2 A:246-255,258-270,323-335,339-358,431-438 1kb9 d1kb9b1 B:17-23,27-39,85-95,97-112,184-191 1ntk d1ntka2 A:238-246,250-262,316-327,327-349,420-427 1ntz d1ntza2 A:238-246,250-262,316-327,327-349,420-426 1p84 d1p84a1 A:36-42,48-59,100-109,112-128,205-212 1bgy d1bgyb1 B:32-39,43-53,103-113,115-130,203-210 1bgy d1bgyn1 N:32-39,43-53,103-113,115-130,203-210 1sqb d1sqba2 A:238-246,250-262,316-327,327-349,420-427 1bcc d1bccb2 B:241-247,251-263,319-330,329-350,422-428 3cx5 d3cx5l1 L:36-42,48-59,100-109,112-128,205-212 1kb9 d1kb9a1 A:36-42,48-59,100-109,112-128,205-212 1l0n d1l0na2 A:238-246,250-262,316-327,327-349,420-426 1kyo d1kyoa1 A:36-43,47-58,99-108,111-127,204-212 1l0l d1l0la2 A:238-246,250-262,316-327,327-349,420-427 1sqx d1sqxa2 A:238-246,250-262,316-327,327-349,420-427 1ntm d1ntma2 A:238-246,250-262,316-327,327-349,420-427 1be3 d1be3b1 B:32-39,43-53,103-113,115-130,203-210 1sqv d1sqva2 A:238-246,250-262,316-327,327-349,420-427 1kyo d1kyom1 M:17-23,27-39,85-95,97-112,184-191 1sqq d1sqqa2 A:238-246,250-262,316-327,327-349,420-427 1bgy d1bgym2 M:238-246,250-262,316-327,327-349,420-426 1be3 d1be3a2 A:238-246,250-262,316-327,327-349,420-426 2fyu d2fyua2 A:238-246,250-262,316-327,327-349,420-427 3cx5 d3cx5a1 A:36-42,48-59,100-109,112-128,205-212 1nu1 d1nu1a2 A:238-246,250-262,316-327,327-349,420-426 3bcc d3bcca2 A:238-245,250-258,316-327,327-349,420-427 3cxh d3cxhb1 B:18-23,27-39,85-95,97-112,184-191 1bgy d1bgya2 A:238-246,250-262,316-327,327-349,420-426 1bcc d1bcca2 A:238-245,250-262,316-327,327-349,420-427 3cxh d3cxhl1 L:36-44,47-59,100-110,109-128,205-213 1qcr d1qcrb2 B:242-247,251-263,319-330,329-350,422-428 2bcc d2bcca2 A:238-245,250-262,316-327,327-349,420-427 1kb9 d1kb9b2 B:226-232,236-246,281-292,293-311,351-357 2fge d2fgea3 A:278-288,296-306,359-367,369-391,474-485 2ibz d2ibzb2 B:226-232,236-246,281-292,293-311,351-357 1ntk d1ntkb2 B:242-247,252-263,319-329,329-350,422-428 3bcc d3bccb2 B:242-247,251-263,319-330,329-350,422-428 1sqp d1sqpb2 B:242-247,252-261,318-329,329-350,422-428 1sqq d1sqqb2 B:242-248,252-264,318-329,329-350,422-429 2ibz d2ibza1 A:36-44,48-59,100-109,112-128,205-213 3cx5 d3cx5b2 B:226-232,236-246,281-292,293-311,351-357 1ezv d1ezvb2 B:226-232,236-247,281-292,293-311,351-357 3cx5 d3cx5m2 M:226-232,236-246,281-292,293-311,351-357 3cxh d3cxhb2 B:226-232,236-247,281-292,293-311,351-357 1sqb d1sqbb2 B:242-247,252-264,317-329,329-350,422-428 1kyo d1kyom2 M:226-232,236-247,281-292,293-311,351-357 1l0l d1l0lb2 B:242-247,252-264,317-329,329-350,422-428 1q2l d1q2la2 A:742-750,754-764,810-821,824-846,918-928 2fge d2fgea2 A:802-807,811-820,864-875,876-887,967-974 2fge d2fgeb2 B:802-807,811-820,864-875,876-887,967-974 3cxh d3cxhm2 M:226-232,236-247,281-292,293-311,351-357 2fyu d2fyub2 B:242-247,252-264,317-329,329-350,422-428 1p84 d1p84b2 B:226-232,236-247,281-292,293-311,351-357 1kyo d1kyob2 B:226-232,236-247,281-292,293-311,351-357 1q2l d1q2la3 A:276-282,288-298,347-358,364-383,454-460 2fge d2fgeb1 B:561-568,573-583,640-652,654-669,757-764 1hr9 d1hr9g2 G:240-245,256-268,324-336,337-358,442-448 1qcr d1qcra2 A:239-246,250-262,316-327,327-349,420-427 1hr8 d1hr8g2 G:240-245,256-268,324-336,337-358,442-448 1hr9 d1hr9c2 C:240-245,256-268,324-336,337-358,442-448 1hr7 d1hr7h2 H:253-259,264-274,332-344,348-366,439-445 1hr8 d1hr8e2 E:240-245,256-268,324-336,337-358,442-448 1hr8 d1hr8c2 C:240-245,256-268,324-336,337-358,442-448 1hr8 d1hr8d2 D:253-259,264-274,332-344,348-366,439-445 1hr7 d1hr7f2 F:253-259,264-274,332-344,348-366,439-445 1hr6 d1hr6g2 G:240-245,256-268,324-336,337-358,442-448 1hr6 d1hr6c2 C:240-245,256-268,325-336,337-358,442-448 1hr7 d1hr7d2 D:253-259,264-274,332-344,348-366,439-445 1hr6 d1hr6d2 D:253-259,264-274,332-344,348-366,439-445 1hr7 d1hr7g2 G:240-245,256-268,324-336,337-358,442-448 1hr6 d1hr6b2 B:253-259,264-274,332-344,348-366,439-445 1hr6 d1hr6e2 E:240-245,256-268,325-336,337-358,442-448 1hr6 d1hr6h2 H:253-259,264-274,332-344,348-366,439-445 1hr9 d1hr9e2 E:240-245,256-268,324-336,337-358,442-448 1hr9 d1hr9a2 A:240-245,256-268,324-336,337-358,442-448 1hr6 d1hr6f2 F:253-259,264-274,332-344,348-366,439-445 1hr8 d1hr8a2 A:240-245,256-268,324-336,337-358,442-448 1hr6 d1hr6a2 A:240-245,256-268,324-336,337-358,442-448 1hr7 d1hr7e2 E:240-245,256-268,324-336,337-358,442-448 2fge d2fgea1 A:561-568,573-583,640-652,654-669,758-764 1hr7 d1hr7a2 A:240-245,256-268,324-336,337-358,442-448 1hr7 d1hr7c2 C:240-245,256-268,324-336,337-358,442-448 1sqx d1sqxb2 B:242-248,251-264,318-330,329-350,422-429 1hr9 d1hr9b2 B:253-259,264-273,331-344,348-366,439-445 1hr7 d1hr7b2 B:253-259,264-277,331-344,348-366,439-445 1hr8 d1hr8b2 B:253-259,264-277,331-344,348-366,439-445 1ntm d1ntmb2 B:242-248,251-264,317-330,329-350,422-429 1l0n d1l0nb2 B:242-248,251-264,318-330,329-350,422-429 1hr8 d1hr8h2 H:253-259,264-277,331-344,348-366,439-445 1hr8 d1hr8f2 F:253-259,264-277,331-344,348-366,439-445 1hr9 d1hr9h2 H:253-259,264-277,331-344,348-366,439-445 1ntz d1ntzb2 B:242-248,251-264,318-330,329-350,422-429 1hr9 d1hr9f2 F:253-259,264-277,331-344,348-366,439-445 1hr9 d1hr9d2 D:253-259,264-277,331-344,348-366,439-445 2bcc d2bccb2 B:242-247,251-264,317-330,329-350,422-428 1bgy d1bgyb2 B:242-248,251-264,317-330,329-350,422-429 2fge d2fgeb3 B:278-288,296-307,358-367,369-391,474-485 1be3 d1be3b2 B:242-248,251-264,317-330,329-350,422-429 1bgy d1bgyn2 N:242-248,251-264,317-330,329-350,422-429 1ppj d1ppjb2 B:242-247,251-264,318-330,329-350,422-428 1ppj d1ppjo2 O:242-247,251-264,318-330,329-350,422-428 2a06 d2a06b2 B:242-247,251-264,318-330,329-350,422-428 2a06 d2a06o2 O:242-247,251-264,318-330,329-350,422-428 1sqv d1sqvb2 B:242-247,251-264,318-330,329-350,422-428 1pp9 d1pp9o2 O:242-247,251-264,318-330,329-350,422-428 1pp9 d1pp9b2 B:242-247,251-264,318-330,329-350,422-428 6. d.15.2 CAD & PB1 domains contain extra helix; similar heterodimerization modes; possibly related to the ubiquitin-like superfamily ! beta-Grasp (ubiquitin-like) core: beta(2)-alpha-beta(2); mixed beta-sheet 2143 1wmh d1wmha_ A:16-24,57-64,66-71,73-88,91-98 1oey d1oeym_ M:237-247,282-290,292-297,299-311,323-329 1oey d1oeyj_ J:238-247,282-290,292-297,299-310,323-329 1wi0 d1wi0a_ A:16-24,59-65,67-73,74-96,101-107 2o2v d2o2vb1 B:44-52,81-88,89-94,96-111,115-122 1oey d1oeyl_ L:237-247,282-290,292-297,299-310,323-329 2c60 d2c60a1 A:44-52,81-88,89-94,96-111,115-122 1wj6 d1wj6a_ A:14-22,52-61,63-68,70-85,86-97 2cu1 d2cu1a1 A:8-16,44-52,53-58,60-75,79-87 2npt d2npta1 A:17-24,58-65,67-73,74-96,101-108 2npt d2nptc1 C:17-24,58-65,67-73,74-96,101-108 2npt d2nptd1 D:43-51,79-87,88-93,95-110,114-122 2npt d2nptb1 B:42-51,79-87,88-93,95-109,114-122 1wmh d1wmhb_ B:14-23,57-64,66-71,73-83,87-94 2bkf d2bkfa1 A:3-12,43-51,53-58,60-75,76-85 1vd2 d1vd2a_ A:15-24,56-64,66-71,73-88,91-99 1f2r d1f2ri_ I:18-25,59-65,66-70,72-80,81-89