1.   c.37.1        P-loop containing nucleoside triphosphate hydrolases  division into families based on beta-sheet topologies !   
                   P-loop containing nucleoside triphosphate hydrolases 3 layers: a/b/a, parallel or mixed beta-sheets of variable sizes
                   1xx6  d1xx6a1  A:20-36,38-45,60-65,83-89
                   2b8t  d2b8td1  D:24-40,42-49,62-68,91-97
                   1cke  d1ckea_  A:17-30,31-36,68-75,125-130
                   1eg7  d1eg7a_  A:1467-1481,1486-1491,1509-1514,1522-1528
                   1fpm  d1fpma_  A:467-481,486-491,509-514,522-528
                   1fp7  d1fp7a_  A:1467-1481,1486-1491,1509-1514,1522-1528
                   1eg7  d1eg7b_  B:1467-1481,1486-1491,1510-1514,1522-1528
                   1fpm  d1fpmb_  B:467-481,486-491,510-514,522-528

2.   c.68.1        Nucleotide-diphospho-sugar transferases    
                   Nucleotide-diphospho-sugar transferases 3 layers: a/b/a; mixed beta-sheet of 7 strands, order 3214657; strand 6 is antiparallel to the rest
                   1vgu  d1vgua_  A:113-127,130-137,165-170,202-207
                   1inj  d1inja_  A:113-127,130-137,165-170,202-207
                   1h3m  d1h3ma_  A:113-128,130-137,165-170,202-207

3.   d.3.1         Cysteine proteinases  the constitute families differ by insertion into and circular permutation of the common catalytic core made of one alpha-helix and 3-strands of beta-sheet !   
                   Cysteine proteinases consists of one alpha-helix and 4 strands of antiparallel beta-sheet and contains the catalytic triad Cys-His-Asn
                   2q3z  d2q3za4  A:310-318,399-405,419-423,572-584

List of motif hits that are not present in SCOP but are found in PDB for pattern ID: 172 (enumeration index: query79) of S4

2ja1  A:20-36,38-45,60-65,83-89
3ikj  A:239-251,254-261,278-282,323-332
3fs5  A:13-24,32-39,45-49,83-90
3a5d  I:233-245,248-255,272-276,317-326
3a5d  J:233-245,248-255,272-276,317-326
3a5d  A:233-245,248-255,272-276,317-326
3a5d  C:233-245,248-255,272-276,317-326
3a5d  B:233-245,248-255,272-276,317-326
3a5d  K:233-245,248-255,272-276,317-326
3qjy  A:239-251,254-260,278-282,323-331
3i4l  A:241-251,254-262,278-282,323-335
3m4y  A:239-251,254-260,278-282,323-331
3qg1  A:241-251,254-263,278-282,323-333
3mfy  A:237-251,254-260,278-282,323-331
2xme  F:121-131,133-139,174-180,206-213
2xme  A:121-131,133-139,174-180,206-213
2xme  C:121-131,133-139,174-180,206-213
2xme  B:121-131,133-139,174-180,206-213
2xme  D:121-131,133-139,174-180,206-213
2xme  K:121-131,133-139,174-180,206-213
2xme  G:121-131,133-139,174-180,206-213
2xme  I:121-131,133-139,174-180,206-213
2xme  H:121-131,133-139,174-180,206-213
2xme  E:121-131,133-139,174-180,206-213
2xme  L:121-131,133-139,174-180,206-213
2xme  J:121-131,133-139,174-180,206-213
2fem  A:17-30,31-36,68-75,125-130
3p20  A:241-251,254-262,278-282,323-334
3a5c  A:233-245,248-255,272-276,317-326
3a5c  C:233-245,248-255,272-276,317-326
3a5c  J:233-245,248-255,272-276,317-326
3a5c  B:233-245,248-255,272-276,317-326
3a5c  K:233-245,248-255,272-276,317-326
3a5c  I:233-245,248-255,272-276,317-326
3qia  A:239-251,254-260,278-282,323-331
3nd8  A:241-251,254-262,278-282,323-333
3f4a  B:13-24,32-39,45-49,84-90
3f4a  A:13-24,32-39,45-49,84-90
3do6  A:450-464,469-474,490-497,506-512
3do6  B:450-464,469-474,490-497,506-512
3fnj  D:18-29,33-39,47-51,73-77
3fnj  B:18-29,33-39,47-51,73-77
2xmh  B:121-131,133-139,174-180,206-213
2xmh  C:121-131,133-139,174-180,206-213
2xmh  A:121-131,133-139,174-180,206-213
2xmh  D:121-131,133-139,174-180,206-213
2xmh  F:121-131,133-139,174-180,206-213
2xmh  E:121-131,133-139,174-180,206-213
3i73  A:241-251,254-261,278-282,323-334
3i72  A:241-251,254-262,278-282,323-333
3nd9  A:241-251,254-263,278-282,323-333