1. d.153.1 N-terminal nucleophile aminohydrolases (Ntn hydrolases) N-terminal residue provides two catalytic groups, nucleophile and proton donor ! Ntn hydrolase-like 4 layers: alpha/beta/beta/alpha; has an unusual sheet-to-sheet packing 1pma d1pma1_ 1:10-19,33-38,147-166,170-179 3c91 d3c91l1 L:10-19,33-38,147-166,170-179 3c92 d3c92l1 L:10-19,33-38,147-166,170-179 3c91 d3c91z1 Z:10-19,33-38,147-166,170-179 3c92 d3c92z1 Z:10-19,33-38,147-166,170-179 1pma d1pmas_ S:10-19,33-38,147-166,170-179 1pma d1pmaz_ Z:10-19,33-38,147-166,170-179 2zcy d2zcyp1 P:44-52,66-71,185-202,209-21B 1iru d1irur_ R:39-47,61-65,183-199,205-213 2zcy d2zcyb1 B:44-52,66-71,185-202,209-21B 1g0u d1g0um_ M:10-17,33-38,147-166,171-180 1iru d1irud_ D:39-47,61-65,183-199,205-213 3d29 d3d29p1 P:44-52,66-71,185-202,209-21B 3d29 d3d29b1 B:44-52,66-71,185-202,209-21B 1pma d1pmab_ B:10-19,33-38,147-166,170-179 3c91 d3c91h1 H:10-19,33-38,147-166,170-179 3c92 d3c92h1 H:10-19,33-38,147-166,170-179 3c92 d3c92v1 V:10-19,33-38,147-166,170-179 3c91 d3c91v1 V:10-19,33-38,147-166,170-179 3bdm d3bdmp1 P:44-52,66-71,185-202,209-21B 1keh d1keha_ A:183-193,226-230,458-468,625-633 3bdm d3bdmb1 B:44-52,66-71,185-202,209-21B 1iru d1irum_ M:19-27,42-47,167-186,191-200 1iru d1iru1_ 1:19-27,42-47,167-186,191-200 1jd2 d1jd2m_ M:10-18,33-38,147-166,171-180 2f16 d2f16r1 R:44-52,66-70,185-201,20B-216 1g0u d1g0u1_ 1:10-18,33-38,147-166,171-180 2gpl d2gplr1 R:44-52,66-70,185-201,20B-216 2f16 d2f16d1 D:44-52,66-70,185-201,20B-216 2gpl d2gpld1 D:44-52,66-70,185-201,20B-216 2fak d2fakp1 P:44-52,66-71,185-202,209-21B 1ryp d1ryp2_ 2:10-18,33-38,161-180,185-194 2fak d2fakb1 B:44-52,66-71,185-202,209-21B 1jd2 d1jd2z_ Z:44-52,66-71,185-201,207E-216 1ryp d1rypn_ N:10-18,33-38,161-180,185-194 2fak d2fakr1 R:44-52,66-70,185-201,20B-216 1gk0 d1gk0.1 B:14-22,57-62,289-299,456-464 3e47 d3e47p1 P:44-52,66-71,185-202,209-21B 1ryp d1rypt_ T:42-50,62-67,185-201,210-218 2gpl d2gplp1 P:44-52,66-71,185-202,209-21B 2fak d2fakd1 D:44-52,66-70,185-201,20B-216 2gpl d2gplb1 B:44-52,66-71,185-202,209-21B 1or0 d1or0.1 B:14-22,57-62,289-299,456-464 3e47 d3e47b1 B:44-52,66-71,185-202,209-21B 1gk0 d1gk0.2 D:14-22,57-62,289-299,456-464 3d29 d3d29s1 S:44-52,66-71,185-201,2E-217 1jd2 d1jd2y_ Y:44-52,66-70,185-201,209B-216 1jd2 d1jd2d_ D:44-52,66-70,185-201,209B-216 1ryp d1rype_ E:44-52,66-70,192-208,216-223 2f16 d2f16p1 P:44-52,66-71,185-202,209-21A 3d29 d3d29e1 E:44-52,66-71,185-201,2E-217 3bdm d3bdme1 E:44-52,66-71,185-201,2E-217 3bdm d3bdms1 S:44-52,66-71,185-201,2E-217 1jd2 d1jd2e_ E:44-52,66-71,185-201,207E-216 2f16 d2f16b1 B:44-52,66-71,185-202,209-21A 1z7q d1z7qc1 C:42-50,65-70,185-201,210-218 1jd2 d1jd2t_ T:10-18,33-38,147-166,171-180 1gk1 d1gk1.2 D:14-22,57-62,289-299,456-464 1z7q d1z7qq1 Q:42-50,65-70,185-201,210-218 1ryp d1ryps_ S:44-52,66-70,192-208,216-223 2pva d2pvad_ D:11-22,65-73,244-260,274-285 1jw0 d1jw0.1 B:183-191,226-231,458-468,625-633 3pva d3pvaf_ F:11-22,65-73,244-260,274-285 3pva d3pvaa_ A:11-22,65-73,244-260,274-285 3pva d3pvae_ E:11-22,65-73,244-260,274-285 1iru d1irug_ G:43-53,65-69,185-202,208-218 1ryp d1rypf_ F:42-50,62-67,185-201,210-218 3pva d3pvah_ H:11-22,65-73,244-260,274-285 1iru d1iruu_ U:43-53,65-69,185-202,208-218 1g0u d1g0ur_ R:44-52,66-70,185-201,209B-216 2gpl d2gpls1 S:44-52,66-71,185-201,2E-217 3pva d3pvac_ C:11-22,65-73,244-260,274-285 2gpl d2gple1 E:44-52,66-71,185-201,2E-217 3pva d3pvab_ B:11-22,65-73,244-260,274-285 3d29 d3d29k1 K:10-19,33-38,147-166,170-179 3pva d3pvad_ D:11-22,65-73,244-260,274-285 2imh d2imha1 A:12-23,30-35,139-155,162-170 2f16 d2f16s1 S:44-52,66-71,185-201,2E-217 1g0u d1g0ud_ D:44-52,66-70,185-201,209B-216 1pma d1pmay_ Y:10-19,33-38,147-167,170-179 2f16 d2f16e1 E:44-52,66-71,185-201,2E-217 3pva d3pvag_ G:11-22,65-73,244-260,274-285 3d29 d3d29y1 Y:10-19,33-38,147-166,170-179 1ryp d1rypc_ C:42-50,65-69,185-201,210-218 1pma d1pmav_ V:10-19,33-38,147-167,170-179 1g65 d1g65m_ M:10-18,33-38,147-166,171-180 3c91 d3c91w1 W:10-19,33-38,147-167,170-179 3c92 d3c92w1 W:10-19,33-38,147-167,170-179 3c91 d3c91i1 I:10-19,33-38,147-167,170-179 3c92 d3c92i1 I:10-19,33-38,147-167,170-179 1pma d1pmap_ P:10-19,33-38,147-167,170-179 1yau d1yauj1 J:10-19,33-38,147-167,170-179 1yau d1yaul1 L:10-19,33-38,147-167,170-179 1yau d1yaum1 M:10-19,33-38,147-167,170-179 1ya7 d1ya7j1 J:10-19,33-38,147-167,170-179 1pma d1pmax_ X:10-19,33-38,147-167,170-179 1yau d1yauh1 H:10-19,33-38,147-167,170-179 3c92 d3c92j1 J:10-19,33-38,147-167,170-179 3c91 d3c91j1 J:10-19,33-38,147-167,170-179 1pma d1pmaq_ Q:10-19,33-38,147-167,170-179 3c92 d3c92x1 X:10-19,33-38,147-167,170-179 1g65 d1g65s_ S:44-52,66-71,185-201,209-217 3c91 d3c91x1 X:10-19,33-38,147-167,170-179 1e3a d1e3a.1 B:278-286,319-324,541-555,743-752 1yau d1yauk1 K:10-19,33-38,147-167,170-179 1yar d1yarm1 M:10-19,33-38,147-167,170-179 1yau d1yaun1 N:10-19,33-38,147-167,170-179 1yar d1yarl1 L:10-19,33-38,147-167,170-179 1pma d1pmau_ U:10-19,33-38,147-167,170-179 1g65 d1g651_ 1:10-18,33-38,147-166,171-180 3c91 d3c9121 2:10-19,33-38,147-167,170-179 3c92 d3c9221 2:10-19,33-38,147-167,170-179 3c92 d3c92n1 N:10-19,33-38,147-167,170-179 3c91 d3c91n1 N:10-19,33-38,147-167,170-179 1gm9 d1gm9.1 B:15-23,56-61,278-292,480-489 1g65 d1g65b_ B:44-52,66-70,185-202,209-216A 1yau d1yaui1 I:10-19,33-38,147-167,170-179 1pma d1pma2_ 2:10-19,33-38,147-167,170-179 1yar d1yarj1 J:10-19,33-38,147-167,170-179 1ya7 d1ya7l1 L:10-19,33-38,147-167,170-179 1yar d1yarn1 N:10-19,33-38,147-167,170-179 1ya7 d1ya7i1 I:10-19,33-38,147-167,170-179 1ya7 d1ya7k1 K:10-19,33-38,147-167,170-179 1yar d1yark1 K:10-19,33-38,147-167,170-179 1gm7 d1gm7.1 B:15-23,56-61,278-292,480-489 1gkf d1gkf.1 B:15-23,56-61,278-292,480-489 1gk9 d1gk9.1 B:15-23,56-61,278-292,480-489 1yar d1yari1 I:10-19,33-38,147-167,170-179 3c92 d3c92m1 M:10-19,33-38,147-167,170-179 1pma d1pmat_ T:10-19,33-38,147-167,170-179 3c91 d3c91m1 M:10-19,33-38,147-167,170-179 3c91 d3c9111 1:10-19,33-38,147-167,170-179 3c92 d3c9211 1:10-19,33-38,147-167,170-179 3e47 d3e47s1 S:44-52,66-71,185-201,2E-217 1pma d1pmar_ R:10-19,33-38,147-167,170-179 3c91 d3c91k1 K:10-19,33-38,147-167,170-179 3c92 d3c92k1 K:10-19,33-38,147-167,170-179 3c91 d3c91y1 Y:10-19,33-38,147-167,170-179 3c92 d3c92y1 Y:10-19,33-38,147-167,170-179 1z7q d1z7qt1 T:42-50,62-67,185-201,210-218 3e47 d3e47e1 E:44-52,66-71,185-201,2E-217 1ryp d1rypq_ Q:42-50,65-69,185-201,210-218 1z7q d1z7qf1 F:42-50,62-67,185-201,210-218 1fxh d1fxh.1 B:15-23,56-61,278-292,480-489 1g65 d1g65r_ R:44-52,66-70,185-202,209B-216 1pma d1pmaw_ W:10-19,33-38,147-167,170-179 1ya7 d1ya7h1 H:10-19,33-38,147-167,170-179 1yar d1yarh1 H:10-19,33-38,147-167,170-179 1ya7 d1ya7n1 N:10-19,33-38,147-167,170-179 1z7q d1z7qd1 D:40-48,63-68,187-204,209-217 1z7q d1z7qr1 R:40-48,63-68,187-204,209-217 1g0u d1g0us_ S:44-52,66-71,185-201,209E-217 2fak d2fake1 E:44-52,66-71,185-201,2E-217 2fak d2faks1 S:44-52,66-71,185-201,2E-217 1g0u d1g0ue_ E:44-52,66-71,185-201,209E-217 1g0u d1g0ub_ B:44-52,66-70,185-202,209-216A 1g0u d1g0u2_ 2:10-19,33-38,147-166,170-180 1k5s d1k5s.1 B:15-23,56-60,278-292,480-489 1g65 d1g65d_ D:44-52,66-70,185-202,209B-216 2fak d2fak21 2:10-19,33-38,147-166,170-180 1jd2 d1jd2u_ U:10-19,33-38,147-166,170-180 1fxv d1fxv.1 B:15-23,56-60,278-292,480-489 2fak d2fakn1 N:10-19,33-38,147-166,170-180 1jd2 d1jd2n_ N:10-19,33-38,147-166,170-180 1jd2 d1jd2b_ B:44-52,66-70,185-202,209-216A 1g65 d1g65p_ P:44-52,66-70,185-202,209-216A 1ai5 d1ai5.1 B:15-23,56-61,278-292,480-489 1jx9 d1jx9.1 B:15-23,56-60,278-292,480-489 2zcy d2zcy11 1:10-19,33-38,147-166,170-180 2zcy d2zcyn1 N:10-19,33-38,147-166,170-180 2gpl d2gpl21 2:10-19,33-38,147-166,170-180 3e47 d3e47n1 N:10-19,33-38,147-166,170-180 1pnm d1pnm.1 B:15-23,56-61,278-292,480-489 2gpl d2gpln1 N:10-19,33-38,147-166,170-180 1k7d d1k7d.1 B:15-23,56-60,278-292,480-489 3e47 d3e4721 2:10-19,33-38,147-166,170-180 1ajn d1ajn.1 B:15-23,56-61,278-292,480-489 1g65 d1g652_ 2:10-19,33-38,147-166,170-180 3bdm d3bdm01 0:10-18,33-37,147-166,171-180 1ai6 d1ai6.1 B:15-23,56-61,278-292,480-489 1g0u d1g0up_ P:44-52,66-70,185-202,209-216A 1iru d1irux_ X:18-27,41-45,159-179,183-191 3bdm d3bdmm1 M:10-18,33-37,147-166,171-180 1fm2 d1fm2.1 B:183-191,226-230,458-468,625-633 3d29 d3d2921 2:10-19,33-38,147-166,170-180 3d29 d3d29n1 N:10-19,33-38,147-166,170-180 1k5q d1k5q.1 B:15-23,56-60,278-292,480-489 1kec d1kec.1 B:15-23,56-60,278-292,480-489 1ryp d1rypv_ V:10-19,33-38,147-166,170-180 1iru d1iruj_ J:18-27,41-45,159-179,183-191 1jvz d1jvz.1 B:183-191,226-230,458-468,625-633 1pnl d1pnl.1 B:15-23,56-61,278-292,480-489 1pnk d1pnk.1 B:15-23,56-61,278-292,480-489 1ryp d1ryph_ H:10-19,33-38,147-166,170-180 1ai7 d1ai7.1 B:15-23,56-61,278-292,480-489 1h2g d1h2g.1 B:15-23,56-60,278-292,480-489 1g65 d1g65n_ N:10-19,33-38,147-166,170-180 2fak d2fak11 1:10-18,33-37,147-166,171-180 2fak d2fakm1 M:10-18,33-37,147-166,171-180 1ajp d1ajp.1 B:15-23,56-61,278-292,480-489 2zcy d2zcys1 S:44-52,66-70,185-201,2E-217 2f16 d2f1621 2:10-19,33-38,147-166,170-180 1ghd d1ghd.1 B:14-22,57-61,289-299,456-464 2zcy d2zcye1 E:44-52,66-70,185-201,2E-217 2f16 d2f16n1 N:10-19,33-38,147-166,170-180 1z7q d1z7qn1 N:18-25,41-46,169-188,193-202 2zcy d2zcym1 M:10-18,33-37,147-166,171-180 1g0u d1g0un_ N:10-19,33-38,147-166,170-180 1z7q d1z7qs1 S:44-52,66-70,192-209,216-223 2zcy d2zcy01 0:10-18,33-37,147-166,171-180 2gpl d2gplm1 M:10-18,33-37,147-166,171-180 1jd2 d1jd2k_ K:10-18,33-38,147-166,171-180 2gpl d2gpl11 1:10-18,33-37,147-166,171-180 1z7q d1z7qe1 E:44-52,66-70,192-209,216-223 3e47 d3e4711 1:10-18,33-37,147-166,171-180 1jd2 d1jd2w_ W:44-52,66-70,185-202,209-216A 3e47 d3e47m1 M:10-18,33-37,147-166,171-180 2f16 d2f16m1 M:10-18,33-37,147-166,171-180 2f16 d2f1611 1:10-18,33-37,147-166,171-180 3d29 d3d2911 1:10-18,33-37,147-166,171-180 3d29 d3d29m1 M:10-18,33-37,147-166,171-180 1cp9 d1cp9.1 B:14-23,56-61,278-292,480-490 1jd2 d1jd2r_ R:10-18,33-38,147-166,171-180 3bdm d3bdm11 1:10-19,33-37,147-166,170-180 3bdm d3bdmn1 N:10-19,33-37,147-166,170-180 1ya7 d1ya7m1 M:10-19,33-37,147-167,170-179 1g65 d1g65e_ E:44-52,66-70,185-201,207E-217 2f16 d2f16y1 Y:10-18,33-38,147-166,171-180 2zcy d2zcyk1 K:10-19,33-38,147-166,170-180 2zcy d2zcyy1 Y:10-19,33-38,147-166,170-180 1iru d1iruh_ H:10-19,33-38,148-167,171-181 1g65 d1g65j_ J:10-19,33-38,147-166,170-180 1iru d1iruv_ V:10-19,33-38,148-167,171-181 2zcy d2zcyx1 X:10-19,33-38,147-166,170-180 2zcy d2zcyj1 J:10-19,33-38,147-166,170-180 1g65 d1g65y_ Y:10-19,33-38,147-166,170-180 2pva d2pvaa_ A:11-22,69-73,244-260,274-285 1iru d1iruy_ Y:11-19,34-39,152-171,176-185 1g0u d1g0ui_ I:10-19,33-39,147-167,171-181 2fak d2fakj1 J:10-19,33-38,147-166,170-180 1q5q d1q5qa_ A:37-46,52-57,176-192,205-212 3d29 d3d29j1 J:10-19,33-38,147-166,170-180 1q5q d1q5qb_ B:37-46,52-57,176-192,205-212 1q5q d1q5qg_ G:37-46,52-57,176-192,205-212 1iru d1iruk_ K:11-19,34-39,152-171,176-185 3d29 d3d29x1 X:10-19,33-38,147-166,170-180 1q5q d1q5qd_ D:37-46,52-57,176-192,205-212 2fak d2fakx1 X:10-19,33-38,147-166,170-180 1q5q d1q5qc_ C:37-46,52-57,176-192,205-212 1q5q d1q5qe_ E:37-46,52-57,176-192,205-212 1q5q d1q5qf_ F:37-46,52-57,176-192,205-212 1g65 d1g65k_ K:10-19,33-38,147-166,170-180 1iru d1iruo_ O:46-54,68-72,190-207,214-222 1iru d1irua_ A:46-54,68-72,190-207,214-222 1g65 d1g65i_ I:10-19,33-39,147-167,171-181 1ryp d1rypl_ L:10-18,33-38,149-168,173-182 3e47 d3e47i1 I:10-19,33-39,147-167,171-181 3d29 d3d29i1 I:10-19,33-39,147-167,171-181 3e47 d3e47w1 W:10-19,33-39,147-167,171-181 2gpl d2gplw1 W:10-19,33-39,147-167,171-181 2gpl d2gpli1 I:10-19,33-39,147-167,171-181 1z7q d1z7qv1 V:10-19,33-37,147-166,170-180 3d29 d3d29w1 W:10-19,33-39,147-167,171-181 2f16 d2f16i1 I:10-19,33-39,147-167,171-181 3bdm d3bdmk1 K:10-19,33-38,147-166,170-180 3bdm d3bdmy1 Y:10-19,33-38,147-166,170-180 1g65 d1g65w_ W:10-19,33-39,147-167,171-181 2f16 d2f16w1 W:10-19,33-39,147-167,171-181 2gpl d2gplj1 J:10-19,33-38,147-166,170-180 2gpl d2gplx1 X:10-19,33-38,147-166,170-180 3e47 d3e47u1 U:44-52,66-71,18M-202,209-217 1jd2 d1jd22_ 2:44-52,66-71,184M-202,209-217 3e47 d3e47g1 G:44-52,66-71,18M-202,209-217 3e47 d3e47x1 X:10-19,33-38,147-166,170-180 1ryp d1rypj_ J:10-19,33-38,150-170,174-183 2fak d2faki1 I:10-19,33-39,147-167,171-181 3e47 d3e47j1 J:10-19,33-38,147-166,170-180 1g3i d1g3ir_ R:10-18,33-38,144-160,166-172 2fak d2fakw1 W:10-19,33-39,147-167,171-181 1g65 d1g65g_ G:44-52,66-71,184M-202,209-217 1jd2 d1jd2i_ I:10-19,33-39,147-167,171-181 3bdm d3bdmu1 U:44-52,66-71,18M-202,209-217 1g3i d1g3ip_ P:10-18,33-38,144-160,166-172 1g3i d1g3in_ N:10-18,33-38,144-160,166-172 1g3i d1g3iq_ Q:10-18,33-38,144-160,166-172 2f16 d2f16k1 K:10-19,33-38,147-166,170-180 3bdm d3bdmg1 G:44-52,66-71,18M-202,209-217 1jd2 d1jd2g_ G:44-52,66-71,184M-202,209-217 1g0u d1g0ug_ G:44-52,66-71,184M-202,209-217 2zcy d2zcyi1 I:10-19,33-39,147-167,171-181 1g3i d1g3io_ O:10-18,33-38,144-160,166-172 1g3i d1g3im_ M:10-18,33-38,144-160,166-172 2zcy d2zcyw1 W:10-19,33-39,147-167,171-181 1g0u d1g0uw_ W:10-19,33-39,147-167,171-181 1g65 d1g65u_ U:44-52,66-71,185-202,209-217 1ryp d1rypa_ A:49-57,71-76,198-215,222-230 1j2q d1j2qi_ I:10-19,33-38,147-167,170-180 1ryp d1rypx_ X:10-19,33-38,150-170,174-183 1j2q d1j2qj_ J:10-19,33-38,147-167,170-180 1j2q d1j2ql_ L:10-19,33-38,147-167,170-180 1kyi d1kyin_ N:10-18,33-38,144-160,166-172 1ryp d1rypo_ O:49-57,71-76,198-215,222-230 1j2q d1j2qk_ K:10-19,33-38,147-167,170-180 1jd2 d1jd2p_ P:10-19,33-39,147-167,171-181 1j2q d1j2qh_ H:10-19,33-38,147-167,170-180 1g0u d1g0uu_ U:44-52,66-71,184M-202,209-217 1j2q d1j2qn_ N:10-19,33-38,147-167,170-180 1kyi d1kyio_ O:10-18,33-38,144-160,166-172 3bdm d3bdmi1 I:10-19,33-39,147-167,171-181 2gpl d2gplg1 G:44-52,66-71,18M-202,209-217 2gpl d2gplu1 U:44-52,66-71,18M-202,209-217 1j2q d1j2qm_ M:10-19,33-38,147-167,170-180 3bdm d3bdmw1 W:10-19,33-39,147-167,171-181 3d29 d3d29u1 U:44-52,66-71,18M-202,209-217 3d29 d3d29g1 G:44-52,66-71,18M-202,209-217 2f16 d2f16g1 G:44-52,66-71,18M-202,209-217 2fak d2fakg1 G:44-52,66-71,18M-202,209-217 1z7q d1z7qw1 W:10-18,33-38,147-167,171-180 2zcy d2zcyg1 G:44-52,66-71,18M-202,209-217 2f16 d2f16u1 U:44-52,66-71,18M-202,209-217 2fak d2faku1 U:44-52,66-71,18M-202,209-217 1z7q d1z7qx1 X:18-27,41-46,158-178,182-191 1z7q d1z7qi1 I:10-18,33-38,147-167,171-180 2zcy d2zcyu1 U:44-52,66-71,18M-202,209-217 1z7q d1z7qj1 J:18-27,41-46,158-178,182-191 1z7q d1z7qa1 A:49-57,71-76,198-215,222-230 1z7q d1z7qo1 O:49-57,71-76,198-215,222-230 1jd2 d1jd2j_ J:10-19,33-38,147-166,170-180 1ryp d1rypz_ Z:10-19,33-38,149-168,172-182 1iru d1irut_ T:42-50,62-66,183-199,209-217 1iru d1iruf_ F:42-50,62-66,183-199,209-217 1gm8 d1gm8.1 B:15-22,56-61,278-292,482-489 1jd2 d1jd2q_ Q:10-19,33-38,147-166,170-180 2z3b d2z3bh1 H:15-23,39-44,151-167,173-179 1ofi d1ofig_ G:10-18,33-38,144-160,166-172 1ofi d1ofin_ N:10-18,33-38,144-161,166-172 1ofi d1ofih_ H:10-18,33-38,144-160,166-172 1g0u d1g0uh_ H:10-19,33-38,147-167,170-180 1ofi d1ofil_ L:10-18,33-38,144-160,166-172 2z3b d2z3bj1 J:15-23,39-44,151-167,173-179 2h6j d2h6jf1 F:37-46,52-57,176-192,205-213 2z3b d2z3bl1 L:15-23,39-44,151-167,173-179 2h6j d2h6je1 E:37-46,52-57,176-192,205-213 1g0u d1g0uy_ Y:10-18,33-38,147-166,172-180 2h6j d2h6jd1 D:37-46,52-57,176-192,205-213 1q5q d1q5qj_ J:10-17,33-38,159-179,192-199 2h6j d2h6jb1 B:37-46,52-57,176-192,205-213 1q5q d1q5ql_ L:10-17,33-38,159-179,192-199 1q5q d1q5qk_ K:10-17,33-38,159-179,192-199 1q5q d1q5qh_ H:10-17,33-38,159-179,192-199 1q5q d1q5qm_ M:10-17,33-38,159-179,192-199 1q5q d1q5qn_ N:10-17,33-38,159-179,192-199 1q5q d1q5qi_ I:10-17,33-38,159-179,192-199 1g65 d1g65h_ H:10-19,33-38,147-167,170-180 1iru d1irup_ P:41-49,64-68,182-198,206-214 2h6j d2h6jn1 N:10-17,33-38,159-179,192-199 1iru d1irub_ B:41-49,64-68,182-198,206-214 1z7q d1z7qh1 H:10-19,33-37,147-167,170-180 2h6j d2h6ja1 A:37-46,52-57,176-192,205-213 3bdm d3bdmv1 V:10-19,33-38,147-167,170-180 1ai4 d1ai4.1 B:15-22,56-61,278-292,482-489 3bdm d3bdmh1 H:10-19,33-38,147-167,170-180 2h6j d2h6jl1 L:10-17,33-38,159-179,192-199 1ryp d1rypi_ I:10-19,33-38,147-167,170-180 3d29 d3d29v1 V:10-19,33-38,147-167,170-180 3e47 d3e47y1 Y:10-19,33-37,147-166,170-180 3d29 d3d29h1 H:10-19,33-38,147-167,170-180 1g65 d1g65v_ V:10-19,33-38,147-167,170-180 3e47 d3e47k1 K:10-19,33-37,147-166,170-180 2h6j d2h6jm1 M:10-17,33-38,159-179,192-199 1iru d1irun_ N:18-26,41-45,161-180,186-194 2f16 d2f16h1 H:10-19,33-38,147-167,170-180 2h6j d2h6ji1 I:10-17,33-38,159-179,192-199 1iru d1irul_ L:10-18,33-37,148-167,173-181 1g0u d1g0uv_ V:10-19,33-38,147-167,170-180 1iru d1iruz_ Z:10-18,33-37,148-167,173-181 1jd2 d1jd2v_ V:44-52,67-71,185-203,209A-216 1iru d1iru2_ 2:18-26,41-45,161-180,186-194 2gpl d2gplh1 H:10-19,33-38,147-167,170-180 2h6j d2h6jc1 C:37-45,52-57,176-192,205-213 2zcy d2zcyv1 V:10-19,33-38,147-167,170-180 2h6j d2h6jh1 H:10-17,33-38,159-179,192-199 2f16 d2f16v1 V:10-19,33-38,147-167,170-180 2zcy d2zcyh1 H:10-19,33-38,147-167,170-180 2gpl d2gplv1 V:10-19,33-38,147-167,170-180 2h6j d2h6jj1 J:10-17,33-38,159-179,192-199 1g4a d1g4ad_ D:10-18,33-38,143-159,165-171 2gpl d2gply1 Y:10-19,33-37,147-166,170-180 1jd2 d1jd2h_ H:10-19,33-38,147-167,170-180 2fak d2fakh1 H:10-19,33-38,147-167,170-180 1ajq d1ajq.1 B:15-22,56-61,278-292,482-489 2fak d2fakv1 V:10-19,33-38,147-167,170-180 2gpl d2gplk1 K:10-19,33-37,147-166,170-180 1q5r d1q5rl_ L:10-17,33-38,159-179,192-199 2h6j d2h6jk1 K:10-17,33-38,159-179,192-199 1ryp d1rypw_ W:10-19,33-38,147-167,170-180 1q5r d1q5ri_ I:10-17,33-38,159-179,192-199 1q5r d1q5rj_ J:10-17,33-38,159-179,192-199 1q5r d1q5rh_ H:10-17,33-38,159-179,192-199 1q5r d1q5rk_ K:10-17,33-38,159-179,192-199 1kyi d1kyil_ L:10-18,33-38,144-161,166-173 1jd2 d1jd2o_ O:10-19,33-38,147-167,170-180 1q5r d1q5rm_ M:10-17,33-38,159-179,192-199 1iru d1irue_ E:44-52,66-70,190-207,214-222 1g0u d1g0uz_ Z:10-19,34-38,147-166,171-180 3e47 d3e47h1 H:10-19,33-38,147-167,170-180 1iru d1irus_ S:44-52,66-70,190-207,214-222 1q5r d1q5rn_ N:10-17,33-38,159-179,192-199 1g65 d1g65z_ Z:10-19,34-38,147-166,171-180 1m4y d1m4ya_ A:10-18,33-38,143-160,165-171 3e47 d3e47v1 V:10-19,33-38,147-167,170-180 1g0u d1g0uo_ O:44-52,67-71,185-203,209A-216 1ofh d1ofhm_ M:10-18,33-38,144-161,166-173 1g65 d1g65l_ L:10-19,34-38,147-166,171-180 1kyi d1kyii_ I:10-18,33-38,144-161,166-173 1kyi d1kyih_ H:10-18,33-38,144-161,166-173 1kyi d1kyim_ M:10-18,33-38,144-161,166-172 3e47 d3e47z1 Z:10-19,34-38,147-166,171-180 1kyi d1kyij_ J:10-18,33-38,144-161,166-173 1kyi d1kyir_ R:10-18,33-38,144-161,166-172 1kyi d1kyik_ K:10-18,33-38,144-161,166-173 1ht1 d1ht1a_ A:10-18,33-38,143-159,165-173 3e47 d3e47l1 L:10-19,34-38,147-166,171-180 1ofh d1ofhn_ N:10-18,33-38,144-161,166-172 1m4y d1m4yc_ C:10-18,33-38,143-160,165-171 1g0u d1g0uk_ K:10-19,33-37,147-166,170-180 2h6j d2h6jg1 G:37-45,52-57,176-192,205-213 1ryp d1ryp1_ 1:10-19,34-38,167-186,191-200 1g0u d1g0ul_ L:10-19,34-38,147-166,171-180 1ofh d1ofhl_ L:10-18,33-38,144-161,166-172 1g65 d1g65o_ O:44-52,67-71,185-203,209A-216 2fak d2fakk1 K:10-19,33-37,147-166,170-180 1jjw d1jjwa_ A:10-18,33-38,144-161,166-173 1kyi d1kyip_ P:10-18,33-38,144-161,166-172 1kyi d1kyig_ G:10-18,33-38,144-161,166-173 2zcy d2zcyl1 L:10-19,34-38,147-166,171-180 1kyi d1kyiq_ Q:10-18,33-38,144-161,166-172 2fak d2faky1 Y:10-19,33-37,147-166,170-180 1m4y d1m4yb_ B:10-18,33-38,143-160,165-171 2zcy d2zcyz1 Z:10-19,34-38,147-166,171-180 2z3b d2z3bi1 I:15-23,39-44,151-167,173-179 2f16 d2f16l1 L:10-19,34-38,147-166,171-180 1ryp d1rypm_ M:10-19,34-38,167-186,191-200 2f16 d2f16z1 Z:10-19,34-38,147-166,171-180 1or0 d1or0.2 D:14-26,57-62,289-299,447-464 2z3a d2z3ad1 D:15-23,39-44,151-167,173-180 2fak d2fakl1 L:10-19,34-38,147-166,171-180 3d29 d3d29l1 L:10-19,34-38,147-166,171-180 1q5r d1q5rg_ G:37-46,52-57,176-192,205-213 2z3a d2z3ag1 G:15-23,39-44,151-167,173-180 1g3k d1g3ka_ A:10-18,33-38,144-161,166-173 2z3a d2z3ak1 K:15-23,39-44,151-167,173-180 1ofh d1ofhg_ G:10-18,33-38,144-161,166-173 1q5r d1q5rd_ D:37-46,52-57,176-192,205-213 1q5r d1q5ra_ A:37-46,52-57,176-192,205-213 1g3i d1g3ik_ K:10-18,33-38,144-161,166-173 3d29 d3d29z1 Z:10-19,34-38,147-166,171-180 2z3a d2z3af1 F:15-23,39-44,151-167,173-180 2z3a d2z3ac1 C:15-23,39-44,151-167,173-180 1q5r d1q5rc_ C:37-46,52-57,176-192,205-213 2z3a d2z3ai1 I:15-23,39-44,151-167,173-180 2fak d2fakz1 Z:10-19,34-38,147-166,171-180 2z3a d2z3aa1 A:15-23,39-44,151-167,173-180 2z3a d2z3aj1 J:15-23,39-44,151-167,173-180 2z3a d2z3ae1 E:15-23,39-44,151-167,173-180 1q5r d1q5rf_ F:37-46,52-57,176-192,205-213 2f16 d2f16t1 T:44-54,67-71,185-206,207-217 1q5r d1q5re_ E:37-46,52-57,176-192,205-213 1g3i d1g3il_ L:10-18,33-38,144-161,166-173 2f16 d2f16f1 F:44-54,67-71,185-206,207-217 1q5r d1q5rb_ B:37-46,52-57,176-192,205-213 1g3i d1g3ij_ J:10-18,33-38,144-161,166-173 2z3a d2z3ah1 H:15-23,39-44,151-167,173-180 2z3a d2z3al1 L:15-23,39-44,151-167,173-180 1yar d1yarc1 C:44-52,66-70,185-201,210-217 1g65 d1g65a_ A:44-52,67-71,185-203,209A-216 1g3i d1g3ig_ G:10-18,33-38,144-161,166-173 1ofh d1ofhi_ I:10-18,33-38,144-161,166-173 1g3i d1g3ih_ H:10-18,33-38,144-161,166-173 1ofh d1ofhh_ H:10-18,33-38,144-161,166-173 1g3i d1g3ii_ I:10-18,33-38,144-161,166-173 2fak d2fakt1 T:44-54,67-71,185-206,207-217 2fak d2fakf1 F:44-54,67-71,185-206,207-217 1jjw d1jjwb_ B:10-18,33-38,144-161,166-173 2gpl d2gplz1 Z:10-19,34-38,147-166,171-180 2gpl d2gpll1 L:10-19,34-38,147-166,171-180 1g3k d1g3kc_ C:10-18,33-38,144-161,166-172 2zcy d2zcyt1 T:44-54,67-71,185-206,207-217 2z3b d2z3bg1 G:15-23,39-44,151-168,173-179 1g3k d1g3kb_ B:10-18,33-38,144-161,166-173 1jd2 d1jd2l_ L:10-19,34-38,147-166,171-180 3bdm d3bdml1 L:10-19,34-38,147-166,171-180 2gpl d2gplt1 T:44-54,67-71,185-206,207-217 3e47 d3e47t1 T:44-54,67-71,185-206,207-217 2gpl d2gplf1 F:44-54,67-71,185-206,207-217 2zcy d2zcyf1 F:44-54,67-71,185-206,207-217 1ht1 d1ht1v_ V:10-18,33-38,143-159,165-174 3bdm d3bdmz1 Z:10-19,34-38,147-166,171-180 1ht1 d1ht1c_ C:10-18,33-38,143-159,165-174 3e47 d3e47f1 F:44-54,67-71,185-206,207-217 1jd2 d1jd2s_ S:10-19,34-38,147-166,171-180 1z7q d1z7qy1 Y:11-19,34-39,153-172,178-186 1z7q d1z7qk1 K:11-19,34-39,153-172,178-186 1g65 d1g65t_ T:44-54,67-71,185-206,207-217 2pva d2pvab_ B:11-22,65-73,244-260,271-285 1ofi d1ofii_ I:10-18,33-38,144-161,166-173 2z3b d2z3bb1 B:15-23,39-44,151-168,173-179 2pva d2pvac_ C:11-22,65-73,244-260,271-285 2z3b d2z3ba1 A:15-23,39-44,151-168,173-179 3d29 d3d29t1 T:44-54,67-71,185-206,207-217 2z3b d2z3bd1 D:15-23,39-44,151-168,173-179 3d29 d3d29f1 F:44-54,67-71,185-206,207-217 1jjw d1jjwc_ C:10-18,33-38,144-161,166-173 1jd2 d1jd21_ 1:44-54,67-71,185-206,207-217 1g0u d1g0ut_ T:44-54,67-71,185-206,207-217 1ryp d1rypg_ G:43-53,66-70,187-207,210-220 1ryp d1rypu_ U:43-53,66-70,187-207,210-220 3bdm d3bdmt1 T:44-54,67-71,185-206,207-217 3bdm d3bdmf1 F:44-54,67-71,185-206,207-217 1g65 d1g65f_ F:44-54,67-71,185-206,207-217 2z3b d2z3be1 E:15-23,39-44,151-168,173-180 1jd2 d1jd2f_ F:44-54,67-71,185-206,207-217 1g0u d1g0uf_ F:44-54,67-71,185-206,207-217 1yyf d1yyfc1 C:16-24,40-45,152-169,174-180 1ofi d1ofim_ M:10-18,33-38,144-161,166-173 1yyf d1yyfd1 D:16-24,40-45,152-169,174-180 1iru d1iruc_ C:41-49,64-68,185-202,210-220 1iru d1iruq_ Q:41-49,64-68,185-202,210-220 1g65 d1g65x_ X:10-23,33-38,147-166,170-180 1yau d1yauf1 F:44-52,66-70,185-202,210-217 1yau d1yaug1 G:44-52,66-70,185-202,209-217 1z7q d1z7qm1 M:19-28,43-47,176-195,200-209 1yar d1yarf1 F:44-52,66-70,185-202,210-217 1ya7 d1ya7f1 F:44-52,66-70,185-202,210-217 2z3b d2z3bf1 F:15-23,39-44,151-168,173-180 1ryp d1rypk_ K:10-23,33-38,152-171,175-185 1iru d1irui_ I:10-19,33-37,147-167,170-180 2z3b d2z3bc1 C:15-23,39-44,151-168,173-179 1yar d1yard1 D:44-51,66-70,185-201,210-217 1iru d1iruw_ W:10-19,33-37,147-167,170-180 1ryp d1rypy_ Y:10-23,33-38,152-171,175-185 1z7q d1z7qu1 U:43-53,66-70,187-207,210-220 1z7q d1z7qg1 G:43-53,66-70,187-207,210-220 1ya7 d1ya7g1 G:44-51,66-70,185-202,210-217 2z3b d2z3bk1 K:15-23,39-44,151-168,173-180 1yau d1yaue1 E:44-52,66-70,185-202,209-217 2f16 d2f16j1 J:10-23,33-38,147-166,170-180 2f16 d2f16x1 X:10-23,33-38,147-166,170-180 1g4a d1g4ac_ C:10-18,33-39,143-160,165-171 1ya7 d1ya7e1 E:44-51,66-70,185-202,210-217 2z3a d2z3ab1 B:15-23,39-44,151-168,173-180 3bdm d3bdmx1 X:10-23,33-38,147-166,170-180 1yar d1yare1 E:44-51,66-70,185-201,210-217 3bdm d3bdmj1 J:10-23,33-38,147-166,170-180 1j2p d1j2pa_ A:44-52,67-71,185-202,209-217 1j2p d1j2pd_ D:44-52,67-71,185-202,209-217 1j2p d1j2pc_ C:44-52,67-71,185-202,209-217 1j2p d1j2pe_ E:44-52,67-71,185-202,209-217 1j2p d1j2pb_ B:44-52,67-71,185-202,209-217 1j2p d1j2pg_ G:44-52,67-71,185-202,209-217 1j2p d1j2pf_ F:44-52,67-71,185-202,209-217 1g65 d1g65q_ Q:44-52,67-71,185-202,209-217 1g65 d1g65c_ C:44-52,67-71,185-202,209-217 1gk1 d1gk1.1 B:14-26,57-62,289-299,446-464 1j2q d1j2qg_ G:44-52,67-71,185-202,209-217 1j2q d1j2qc_ C:44-52,67-71,185-202,209-217 1j2q d1j2qd_ D:44-52,67-71,185-202,209-217 1j2q d1j2qb_ B:44-52,67-71,185-202,209-217 1j2q d1j2qf_ F:44-52,67-71,185-202,209-217 1j2q d1j2qe_ E:44-52,67-71,185-202,209-217 1j2q d1j2qa_ A:44-52,67-71,185-202,209-217 1g0u d1g0uq_ Q:44-52,67-71,185-202,209-217 1ryp d1rypr_ R:40-48,64-68,187-204,209-217 1ryp d1rypd_ D:40-48,64-68,187-204,209-217 1g0u d1g0uc_ C:44-52,67-71,185-202,209-217 1g0u d1g0uj_ J:10-23,33-37,147-166,170-180 1jd2 d1jd2c_ C:44-52,67-71,185-202,209-217 1g0u d1g0ux_ X:10-23,33-37,147-166,170-180 1ned d1neda_ A:10-18,33-38,150-167,172-180 1ht2 d1ht2i_ I:10-18,33-38,143-160,165-173 1jd2 d1jd2x_ X:44-52,67-71,185-202,209-217 1ned d1nedb_ B:10-17,33-38,150-167,173-180 1g4b d1g4bp_ P:10-18,33-38,143-160,165-173 1g4b d1g4bn_ N:10-18,33-38,143-160,165-173 1hqy d1hqya_ A:10-18,33-38,143-160,165-173 1ht2 d1ht2a_ A:10-18,33-38,143-160,165-173 1ht1 d1ht1z_ Z:10-18,33-38,143-160,165-173 1ned d1nedc_ C:10-17,33-38,150-167,173-180 1ht2 d1ht2b_ B:10-18,33-38,143-160,165-173 1ht1 d1ht1b_ B:10-18,33-38,143-160,165-173 1ht2 d1ht2j_ J:10-18,33-38,143-160,165-173 1hqy d1hqyb_ B:10-18,33-38,143-160,165-173 1g4b d1g4bm_ M:10-18,33-38,143-160,165-173 1g4b d1g4bo_ O:10-18,33-38,143-160,165-173 1ht1 d1ht1x_ X:10-18,33-38,143-160,165-173 1hqy d1hqyc_ C:10-18,33-38,143-160,165-173 1ht1 d1ht1y_ Y:10-18,33-38,143-160,165-173 1ht1 d1ht1d_ D:10-18,33-38,143-160,165-173 1e94 d1e94d_ D:10-18,33-38,143-160,165-173 1ht2 d1ht2d_ D:10-18,33-38,143-160,165-173 1e94 d1e94a_ A:10-18,33-38,143-160,165-174 1ht2 d1ht2c_ C:10-18,33-38,143-160,165-173 1ht2 d1ht2l_ L:10-18,33-38,143-160,165-173 1e94 d1e94c_ C:10-18,33-38,143-160,165-174 1hqy d1hqyd_ D:10-18,33-38,143-160,165-173 1e94 d1e94b_ B:10-18,33-38,143-160,165-173 1ht2 d1ht2k_ K:10-18,33-38,143-160,165-174 2pva d2pvaa_ A:11-22,65-69,244-260,274-285 3. d.153.2 Archaeal IMP cyclohydrolase PurO has a putative active site in the same topological location as the Ntn hydrolase but lacks the N-terminal nucleophile ! Ntn hydrolase-like 4 layers: alpha/beta/beta/alpha; has an unusual sheet-to-sheet packing 2ntk d2ntkc1 C:14-24,58-66,162-173,181-191 2ntk d2ntkd1 D:14-24,58-66,162-173,181-191 2ntk d2ntka1 A:14-24,58-66,162-173,181-191 2ntk d2ntkb1 B:14-24,58-66,162-173,181-191 2ntm d2ntmc1 C:14-24,58-66,162-173,181-191 2ntm d2ntmd1 D:14-24,58-66,162-173,181-191 2ntm d2ntmb1 B:14-24,58-66,162-173,181-191 1kuu d1kuua_ A:14-24,58-66,162-173,181-191 2ntl d2ntlc1 C:14-24,58-66,162-173,181-191 2ntm d2ntma1 A:14-24,58-66,162-173,181-191 2ntl d2ntlb1 B:14-24,58-66,162-173,181-191 2ntl d2ntld1 D:14-24,58-66,162-173,181-191 2ntl d2ntla1 A:14-24,58-66,162-173,181-191 5. b.67.1 Tachylectin-2 5-bladed beta-propeller consists of five 4-stranded beta-sheet motifs; meander 1tl2 d1tl2a_ A:6-12,43-50,225-232,231-236