2. a.89.1 Methyl-coenzyme M reductase alpha and beta chain C-terminal domain Methyl-coenzyme M reductase alpha and beta chain C-terminal domain multihelical bundle; contains buried central helix 1hbu d1hbub1 B:6-13,207-227,229-247,427-443 1hbu d1hbue1 E:6-13,207-227,229-247,427-443 1hbn d1hbne1 E:6-13,207-227,229-247,427-443 1hbm d1hbme1 E:6-13,207-227,229-247,427-443 1hbo d1hbob1 B:6-13,207-227,229-247,427-443 1hbn d1hbnb1 B:6-13,207-227,229-247,427-443 1hbm d1hbmb1 B:6-13,207-227,229-247,427-443 1mro d1mroe1 E:6-13,207-227,229-247,427-440 1mro d1mrob1 B:6-13,207-227,229-247,427-440 1hbo d1hboe1 E:6-13,207-227,229-247,427-440 1e6v d1e6vb1 B:7-14,208-228,231-248,428-442 1e6v d1e6ve1 E:7-14,208-228,231-248,428-442 1e6y d1e6yb1 B:2004-2010,2204-2224,2226-2244,2425-2432 1e6y d1e6ye1 E:5004-5010,5204-5224,5226-5244,5425-5432 1e6y d1e6yd1 D:4085-4089,4312-4339,4343-4352,4544-4555 1e6y d1e6ya1 A:1085-1089,1312-1339,1343-1352,1544-1555 1hbo d1hboa1 A:71-75,299-326,330-339,524-535 1hbu d1hbua1 A:71-75,299-326,330-339,524-535 1mro d1mrod1 D:71-75,299-326,330-339,524-535 1mro d1mroa1 A:71-75,299-326,330-339,524-535 1hbn d1hbna1 A:71-75,299-326,330-339,524-535 1hbu d1hbud1 D:71-75,299-326,330-339,524-535 1hbn d1hbnd1 D:71-75,299-326,330-339,524-535 1hbo d1hbod1 D:71-75,299-326,330-339,524-535 1hbm d1hbmd1 D:71-75,299-326,330-339,524-535 1e6v d1e6va1 A:74-78,302-329,333-342,527-538 1e6v d1e6vd1 D:74-78,302-329,333-342,527-538 1hbm d1hbma1 A:71-75,299-326,330-339,524-535 10. a.227.1 ERO1-like similar active site architecture to ERO1-like multihelical; consists of 2 four-helical bundles 1rq1 d1rq1a_ A:81-87,192-208,329-351,352-379 1rp4 d1rp4a_ A:81-87,192-207,329-351,352-379 15. d.248.1 Coproporphyrinogen III oxidase Coproporphyrinogen III oxidase alpha-beta(6)-alpha(2)-beta-alpha(n); 3 layers alpha/beta/alpha; antiparallel sheet: order 1234567 3dwr d3dwrb1 B:122-134,138-157,195-224,285-298 1tkl d1tklb_ B:144-159,163-183,220-249,311-323 1tkl d1tkla_ A:144-159,163-183,220-249,311-323 3dws d3dwsa1 A:121-134,138-157,195-224,285-298 2qt8 d2qt8a1 A:121-134,138-157,195-224,285-298 1vju d1vjub_ B:129-142,146-165,203-232,293-306 2qt8 d2qt8b1 B:121-134,138-157,195-224,285-298 1vju d1vjua_ A:129-142,146-165,203-232,293-306 3dws d3dwsb1 B:121-134,138-157,195-224,285-298 3dwr d3dwra1 A:121-134,138-157,195-224,285-298 1tlb d1tlbw_ W:144-159,163-183,220-249,311-323 1tlb d1tlbq_ Q:144-159,163-183,220-249,311-323 1tlb d1tlbs_ S:144-159,163-183,220-249,311-323 1tlb d1tlbd_ D:144-159,163-183,220-249,311-323 1tlb d1tlba_ A:144-159,163-183,220-249,311-323