1. a.77.1 DEATH domain DEATH domain 6 helices: closed bundle; greek-key; internal pseudo twofold symmetry 1c15 d1c15a_ A:2-21,23-33,36-48,49-64,64-79 2gf5 d2gf5a1 A:91-108,109-120,122-134,136-153,157-169 3ygs d3ygsc_ C:2-13,21-33,36-46,48-63,64-79 3crd d3crda_ A:1-20,25-34,37-48,49-66,67-76 1cww d1cwwa_ A:2-13,21-33,36-47,48-63,64-79 1a1z d1a1za_ A:2-16,16-32,32-40,41-52,60-71 1dgn d1dgna_ A:9-17,18-33,36-46,49-65,65-81 2ygs d2ygsa_ A:2-13,21-33,36-47,48-63,64-79 1e41 d1e41a_ A:97-108,108-120,122-134,136-153,157-169 1cy5 d1cy5a_ A:2-13,21-33,36-47,48-63,64-79 2p1h d2p1ha1 A:4-15,23-35,38-49,50-65,66-81 2a5y d2a5yb2 B:3-14,22-34,37-47,49-66,67-79 1fad d1fada_ A:93-109,108-120,122-134,136-153,157-169 1n3k d1n3ka_ A:1-16,16-28,32-40,41-53,59-71 1ucp d1ucpa_ A:2-16,16-31,40-48,48-61,61-77 1wmg d1wmgb_ B:859-872,879-888,892-900,901-914,919-931 1wmg d1wmgf_ F:859-873,879-888,889-899,901-915,920-931 1wmg d1wmga_ A:859-872,879-888,892-900,901-914,916-931 1d2z d1d2za_ A:38-53,53-63,65-79,81-95,97-109 1ngr d1ngra_ A:342-353,353-365,367-378,379-391,395-407 2. a.132.1 Heme oxygenase-like duplication: contains two structural repeats of 3-helical motif ! Heme oxygenase-like multihelical; bundle 1rcw d1rcwa_ A:7-20,112-128,130-145,176-193,196-219 1rcw d1rcwc_ C:7-20,112-128,130-145,176-193,196-219 1rcw d1rcwb_ B:7-20,112-128,130-145,176-193,196-220 1wnx d1wnxb_ B:7-17,103-120,121-140,168-183,186-212 2gm7 d2gm7d1 D:0-11,105-122,123-146,166-184,186-211 1wnw d1wnwc_ C:7-17,103-120,121-140,168-183,186-212 1we1 d1we1a_ A:4-23,99-117,116-135,163-178,181-207 1wnv d1wnvc_ C:607-617,703-720,721-740,768-783,786-813 1we1 d1we1d_ D:4-23,99-117,116-135,163-178,181-207 1iw1 d1iw1b_ B:307-317,403-420,421-439,468-483,486-514 1iw0 d1iw0c_ C:607-617,703-720,721-740,768-783,786-813 1wnv d1wnva_ A:7-17,103-120,121-140,168-183,186-213 1iw1 d1iw1a_ A:7-17,103-120,121-138,168-183,186-213 1v8x d1v8xb_ B:307-317,403-420,421-439,468-483,486-514 1v8x d1v8xc_ C:607-617,703-720,721-740,768-783,786-813 1wnv d1wnvb_ B:307-317,403-420,421-440,468-483,486-514 1iw1 d1iw1c_ C:607-617,703-720,721-740,768-783,786-813 1wnx d1wnxa_ A:7-17,103-120,121-140,168-183,186-213 1we1 d1we1c_ C:4-23,99-117,116-135,163-178,181-207 2gm7 d2gm7a1 A:1-11,105-122,123-146,166-184,186-211 1z72 d1z72b1 B:11-22,116-133,134-155,174-193,198-220 2gm8 d2gm8d1 D:1-11,105-122,123-146,166-184,186-211 1ozl d1ozlb_ B:12-22,108-126,125-144,174-189,192-223 1we1 d1we1b_ B:4-23,99-117,116-135,163-178,181-207 2gm8 d2gm8a1 A:0-11,105-122,123-146,166-184,186-211 2gm7 d2gm7b1 B:1-11,105-122,123-146,166-184,186-211 2gm8 d2gm8c1 C:1-11,105-122,123-146,166-184,186-211 1wnw d1wnwa_ A:7-26,103-120,121-140,168-183,186-213 2gm8 d2gm8b1 B:1-11,105-122,123-146,166-184,186-211 2gm7 d2gm7c1 C:1-11,105-122,123-146,166-184,186-211 1twn d1twnb1 B:12-22,108-126,125-144,174-189,192-223 1ozw d1ozwb_ B:12-22,108-126,125-144,174-189,192-223 1wzf d1wzfb1 B:7-17,103-120,121-138,168-183,186-213 1s13 d1s13b_ B:12-22,108-126,125-144,174-189,192-223 1z72 d1z72a1 A:11-22,116-133,134-155,174-193,197-220 1oze d1ozeb_ B:12-22,108-126,125-144,174-189,192-223 1wzd d1wzda1 A:7-17,103-120,121-140,168-183,186-213 1v8x d1v8xa_ A:7-17,103-120,121-138,168-183,186-214 1twr d1twrb1 B:12-22,108-126,125-144,174-189,192-223 1wzf d1wzfa1 A:7-17,103-120,121-140,168-183,186-213 1wzd d1wzdb1 B:7-17,103-120,121-138,168-183,186-213 1iw0 d1iw0a_ A:7-26,103-120,121-140,168-183,186-213 1n45 d1n45b_ B:12-22,108-126,125-144,174-190,192-223 1oyl d1oylb_ B:12-22,108-126,125-144,174-189,192-223 1wzg d1wzga1 A:7-17,103-120,121-140,168-183,186-213 1ozr d1ozrb_ B:12-22,108-126,125-144,174-190,192-223 1xk3 d1xk3b_ B:12-22,108-126,125-144,174-189,192-223 1wzg d1wzgb1 B:7-17,103-120,121-139,168-183,186-214 1xk2 d1xk2b_ B:12-22,108-126,125-144,174-189,192-223 1xk1 d1xk1b1 B:12-22,108-126,125-144,174-189,192-223 3czy d3czyb1 B:12-22,108-126,125-144,174-189,192-223 1xjz d1xjzb1 B:12-22,108-126,125-144,174-189,192-223 1wnw d1wnwb_ B:7-26,103-120,121-140,168-183,186-214 2a2o d2a2od1 D:37-47,135-152,153-180,196-210,214-239 1iw0 d1iw0b_ B:307-326,403-420,421-440,468-483,486-514 2a2o d2a2of1 F:37-47,135-152,153-180,196-210,214-239 2a2o d2a2oe1 E:37-47,135-152,153-180,196-210,214-239 3czy d3czya1 A:12-22,108-126,125-144,174-190,192-223 1xk0 d1xk0b1 B:12-22,108-126,125-144,174-189,192-223 2z68 d2z68b1 B:7-17,103-120,121-140,168-183,186-214 1xk0 d1xk0a1 A:12-22,108-126,125-144,174-190,192-223 2a2o d2a2ob1 B:37-47,135-152,153-180,196-210,214-239 2a2o d2a2oa1 A:37-47,135-152,153-180,196-210,214-239 2a2o d2a2og1 G:37-47,135-152,153-180,196-210,214-239 1n3u d1n3ub_ B:12-22,108-126,125-144,174-190,192-223 2a2o d2a2oc1 C:37-47,135-152,153-180,196-210,214-239 1n3u d1n3ua_ A:12-22,108-126,125-144,174-190,192-223 1s13 d1s13a_ A:12-22,108-126,125-144,174-190,192-223 1oyk d1oykb_ B:12-22,108-126,125-144,174-189,192-223 2a2m d2a2ma1 A:37-47,135-152,153-180,196-210,214-239 2a2m d2a2mb1 B:37-47,135-152,153-180,196-210,214-239 1xk1 d1xk1a1 A:12-22,108-126,125-144,174-190,192-223 1ozr d1ozra_ A:12-22,108-126,125-145,174-190,192-223 1twn d1twna1 A:12-22,108-126,125-144,174-190,192-223 1xjz d1xjza1 A:12-22,108-126,125-144,174-190,192-223 1oyk d1oyka_ A:12-22,108-126,125-144,174-189,192-223 1otw d1otwa_ A:8-23,118-135,136-161,169-199,200-232 1otw d1otwb_ B:8-23,118-135,136-161,169-199,200-232 1twr d1twra1 A:12-22,108-126,125-144,174-190,192-223 1xk3 d1xk3a_ A:12-22,108-126,125-144,174-190,192-223 1oyl d1oyla_ A:12-22,108-126,125-144,174-190,192-223 1dvg d1dvgb_ B:12-22,108-126,125-142,174-190,192-223 2q4x d2q4xa1 A:5-15,109-125,128-148,170-191,192-218 2f2g d2f2ga1 A:5-15,109-124,128-148,170-191,192-218 1dvg d1dvga_ A:12-22,108-126,125-142,174-190,192-223 1ni6 d1ni6c_ C:12-22,108-126,125-144,174-189,192-223 2f2g d2f2gb1 B:5-15,109-124,128-148,170-191,192-219 1t5p d1t5pb_ B:12-26,108-126,125-147,174-190,192-223 1iw0 d1iw0a_ A:7-26,38-67,121-140,168-183,186-213 1otv d1otvb_ B:8-23,118-135,136-150,186-199,200-232 1s8c d1s8ca_ A:12-22,108-126,125-144,174-189,192-223 1otv d1otva_ A:8-23,118-135,136-150,186-199,200-232 1ni6 d1ni6b_ B:12-22,108-126,125-144,174-189,192-223 1s8c d1s8cb_ B:12-22,108-126,125-144,174-189,192-223 1ni6 d1ni6d_ D:12-22,108-126,125-144,174-189,192-223 1s8c d1s8cc_ C:12-22,108-126,125-144,174-189,192-223 1t5p d1t5pb_ B:12-26,43-69,125-147,174-190,192-223 1ni6 d1ni6a_ A:12-22,108-126,125-144,174-189,192-224 1s8c d1s8cd_ D:12-22,108-126,125-144,174-189,192-223 2q4x d2q4xb1 B:5-15,109-124,128-148,170-191,192-219 1udd d1uddb_ B:4-14,107-125,125-148,168-185,189-214 1udd d1uddd_ D:4-14,107-125,125-148,168-185,189-214 1udd d1udda_ A:4-14,107-125,125-148,168-186,189-214 1udd d1uddc_ C:4-14,107-125,125-148,168-186,189-214 1wox d1woxb1 B:3-22,98-116,115-132,163-182,184-218 1tyh d1tyhd_ D:2-12,106-123,124-149,165-186,187-215 1tyh d1tyhe_ E:2-12,106-123,124-149,165-186,187-215 1oze d1ozea_ A:12-31,108-126,125-144,174-189,192-223 1yaf d1yafd1 D:2-12,106-123,124-149,165-186,187-215 1yaf d1yafb1 B:2-12,106-123,124-149,165-186,187-215 1yak d1yakd1 D:2-12,106-123,124-149,165-186,187-215 1tyh d1tyhb_ B:2-12,106-123,124-149,165-186,187-215 1yaf d1yafa1 A:2-12,106-123,124-149,165-186,187-215 1yak d1yaka1 A:2-12,106-123,124-149,165-186,187-215 1yaf d1yafc1 C:2-12,106-123,124-149,165-186,187-215 1wox d1woxb1 B:3-22,34-60,115-132,163-182,184-218 1wov d1wovb1 B:3-13,98-116,115-132,163-181,184-218 1to9 d1to9a_ A:2-12,106-123,124-150,165-186,187-215 1wow d1wowb1 B:3-13,98-116,115-132,163-181,184-218 1rtw d1rtwb_ B:1-11,99-116,117-143,158-180,180-207 1t5p d1t5pa_ A:12-27,108-126,125-144,174-190,192-223 1rtw d1rtwc_ C:1-11,99-116,117-143,158-180,180-207 1rtw d1rtwd_ D:1-11,99-116,117-143,158-180,180-206 1tyh d1tyha_ A:2-12,106-123,124-150,165-186,187-215 1to9 d1to9b_ B:2-12,106-123,124-150,165-186,187-215 1wox d1woxa1 A:3-22,98-116,115-132,163-181,184-218 1yak d1yakb1 B:2-12,106-123,124-150,165-186,187-215 1wov d1wova1 A:3-22,98-116,115-132,163-181,184-218 1yak d1yakc1 C:3-12,106-123,124-150,165-186,187-215 1rtw d1rtwa_ A:1-11,99-116,117-143,158-180,180-206 1wow d1wowa1 A:3-22,98-116,115-132,163-181,184-218 2gm7 d2gm7b1 B:20-29,32-61,63-93,154-166,186-211 1wox d1woxa1 A:3-22,34-60,115-132,163-181,184-218 1n45 d1n45a_ A:12-31,108-126,125-144,174-190,192-223 1wov d1wova1 A:3-22,34-60,115-132,163-181,184-218 1wow d1wowa1 A:3-22,34-60,115-132,163-181,184-218 2gm8 d2gm8c1 C:20-29,32-61,63-93,154-166,186-211 1ozw d1ozwa_ A:12-31,108-126,125-144,174-190,192-223 2gm8 d2gm8a1 A:20-29,32-61,63-93,154-166,186-211 2gm8 d2gm8b1 B:20-29,32-61,63-93,154-166,186-211 1ozl d1ozla_ A:12-31,108-126,125-144,174-190,192-223 1xk2 d1xk2a_ A:12-31,108-126,125-144,174-190,192-223 1xk2 d1xk2a_ A:12-31,43-69,125-144,174-190,192-223 2gm8 d2gm8d1 D:20-29,32-61,63-93,154-166,186-211 2gm7 d2gm7c1 C:20-29,32-43,63-93,154-166,186-211 2gm7 d2gm7d1 D:20-29,32-43,63-93,154-166,186-211 2gm7 d2gm7a1 A:20-29,32-43,63-93,154-166,186-211 2f2g d2f2gb1 B:24-33,36-55,71-100,158-170,192-219 1udd d1udda_ A:23-32,35-46,65-95,156-168,189-214 1udd d1uddc_ C:23-32,35-46,65-95,156-168,189-214 1udd d1uddd_ D:23-32,35-46,65-95,156-168,189-214 1udd d1uddb_ B:23-32,35-46,65-95,156-168,189-214 1rtw d1rtwa_ A:20-29,32-61,62-91,149-158,180-206 1rtw d1rtwd_ D:20-29,32-61,62-91,149-158,180-206 2q4x d2q4xb1 B:24-33,36-55,71-100,161-170,192-219 6. f.1.1 Colicin Toxins' membrane translocation domains multi-helical domains of various folds which is thought to unfold in the membrane 1rh1 d1rh1a2 A:341-359,365-380,439-454,456-475,478-498 1col d1colb_ B:31-49,55-69,129-144,146-165,168-188 1col d1cola_ A:31-49,55-70,129-144,146-165,168-188 1a87 d1a87a_ A:215-232,239-253,313-328,330-345,351-372 9. f.21.1 Transmembrane di-heme cytochromes Three of the four heme-ligands are conserved between the two families; both heme groups bind similarly but not identically ! Heme-binding four-helical bundle core: four transmembrane helices, up-and-down bundle, binds one or two heme groups in between the helices 1ppj d1ppjc2 C:28-55,75-105,109-135,184-204,220-247 1bgy d1bgyc3 C:28-55,75-105,109-135,184-204,220-247 1be3 d1be3c3 C:28-55,75-105,109-135,184-204,220-247 1bgy d1bgyo3 O:28-55,75-105,109-135,184-204,220-247 1l0l d1l0lc2 C:28-55,75-105,109-135,184-204,220-247 3cxh d3cxhc2 C:27-54,74-104,107-136,185-205,221-248 3bcc d3bccc3 C:29-56,76-106,110-136,185-205,221-248 1p84 d1p84c2 C:27-54,74-104,107-136,185-205,221-248 1pp9 d1pp9c2 C:28-55,75-105,109-135,184-204,219-247 1ppj d1ppjp2 P:28-55,75-105,109-135,184-204,219-247 1sqp d1sqpc2 C:28-55,75-105,109-135,184-204,219-247 1pp9 d1pp9p2 P:28-55,75-105,109-135,184-204,219-247 1kyo d1kyon3 N:27-54,74-104,107-136,172-205,221-248 1sqv d1sqvc2 C:28-55,75-105,109-135,184-204,219-247 1sqx d1sqxc2 C:28-55,75-105,109-135,184-204,219-247 1sqb d1sqbc2 C:28-55,75-105,109-135,184-204,219-247 2fyu d2fyuc2 C:28-55,75-105,109-135,184-204,219-247 1ezv d1ezvc3 C:27-54,74-104,107-136,185-205,220-248 2ibz d2ibzc2 C:27-54,74-104,107-136,185-205,220-248 3cwb d3cwbc2 C:29-56,76-106,110-136,185-205,220-248 3cwb d3cwbp2 P:29-56,76-106,110-136,185-205,220-248 1kb9 d1kb9c2 C:27-54,74-104,107-136,185-205,220-248 1ntz d1ntzc2 C:28-55,75-105,109-135,184-204,219-247 1nu1 d1nu1c2 C:28-55,75-105,109-135,184-204,219-247 3cxh d3cxhn2 N:27-54,74-104,107-136,185-205,220-248 1ntm d1ntmc2 C:28-55,75-105,109-135,184-204,219-247 1l0n d1l0nc2 C:28-55,75-105,109-135,184-204,219-247 3cx5 d3cx5c2 C:27-54,74-104,107-136,185-205,220-248 3cx5 d3cx5n2 N:27-54,74-104,107-136,185-205,220-248 1sqq d1sqqc2 C:28-55,75-105,109-135,184-204,219-247 1ntk d1ntkc2 C:28-55,75-105,109-135,184-204,219-247 2bcc d2bccc3 C:29-56,76-106,110-136,185-205,220-248 1bcc d1bccc3 C:29-56,76-106,110-136,185-205,220-248 1kyo d1kyoc3 C:27-54,74-104,108-136,185-205,220-248 1qcr d1qcrc3 C:28-55,73-105,109-135,184-204,219-247 10. a.244.1 EF2947-like EF2947-like 4 helices; "diamond" array; duplication: N-terminal and C-terminal pairs of helices are related by pseudo dyad 2au5 d2au5a1 A:11-35,51-74,78-99,102-124,123-132 15. a.267.1 Topoisomerase V catalytic domain-like Topoisomerase V catalytic domain-like multihelical; irregular array; contains small amount of beta-structure and a 3-helical bundle with a variant homeofomain-like fold and HTH motif (scop_cf 46688) 2csb d2csba5 A:12-44,49-70,99-108,109-119,239-269 18. f.54.1 SNF-like SNF-like 12 transmembrane helices; duplication: consists of two structurally similar halves 2qb4 d2qb4a1 A:54-73,87-125,259-270,274-307,408-428 2a65 d2a65a1 A:54-73,87-125,259-270,274-307,398-428 2qju d2qjua1 A:54-73,87-125,259-270,274-307,398-428 2q6h d2q6ha1 A:54-73,87-125,259-270,274-307,396-428 2q72 d2q72a1 A:54-73,87-125,259-270,274-307,396-428