3. d.41.2 Nicotinate/Quinolinate PRTase N-terminal domain-like alpha/beta-Hammerhead core: beta-BETA-alpha-beta-BETA-beta-alpha; contains a beta-hammerhead motif similar to that in barrel-sandwich hybrids 1qpn d1qpnc2 C:1004-1026,1040-1049,1055-1068,1103-1129,1280-1285 1qpo d1qpoc2 C:1004-1026,1040-1049,1055-1068,1103-1129,1280-1285 1qpo d1qpoe2 E:2004-2026,2040-2049,2055-2068,2103-2129,2280-2285 1qpq d1qpqc2 C:1004-1026,1040-1049,1055-1068,1103-1129,1280-1285 1qpn d1qpna2 A:4-26,40-49,55-68,103-129,280-285 1qpn d1qpne2 E:2004-2026,2040-2049,2055-2068,2103-2129,2280-2285 1qpq d1qpqe2 E:2004-2026,2040-2049,2055-2068,2103-2129,2280-2285 1qpo d1qpoa2 A:4-26,40-49,55-68,103-129,280-285 1qpo d1qpob2 B:504-526,540-549,555-568,603-629,780-785 1qpn d1qpnf2 F:2504-2526,2540-2549,2555-2568,2603-2629,2780-2785 1qpn d1qpnb2 B:504-526,540-549,555-568,603-629,780-785 1qpq d1qpqa2 A:4-26,40-49,55-68,103-129,280-285 1qpq d1qpqb2 B:504-526,540-549,555-568,603-629,780-785 1qpo d1qpof2 F:2504-2526,2540-2549,2555-2568,2603-2629,2780-2785 1qpr d1qprb2 B:4-26,40-49,55-68,103-129,280-285 1qpr d1qpre2 E:4-26,40-49,55-68,103-129,280-285 1qpo d1qpod2 D:1504-1526,1540-1549,1555-1568,1603-1629,1780-1785 1qpq d1qpqf2 F:2504-2526,2540-2549,2555-2568,2603-2629,2780-2785 1qpr d1qprf2 F:4-26,40-49,55-68,103-129,280-285 1qpr d1qprc2 C:4-26,40-49,55-68,103-129,280-285 1qpn d1qpnd2 D:1504-1526,1540-1549,1555-1568,1603-1629,1780-1785 1qpr d1qpra2 A:4-26,40-49,55-68,103-129,280-285 1qpq d1qpqd2 D:1504-1526,1540-1549,1555-1568,1603-1629,1780-1785 1qpr d1qprd2 D:4-26,40-49,55-68,103-129,280-285