4. d.115.1 YrdC/RibB YrdC/RibB core: alpha-beta(2)-alpha-beta-alpha(2)-beta(2)-alpha-beta-alpha-beta; 3 layers; mixed twisted sheet of 7 strands; order 7126354; strands 7 and 1 are parallel to each other 1pvw d1pvwc_ C:16-22,27-35,39-51,163-176,179-186 1g57 d1g57b_ B:28-33,40-47,51-62,152-165,169-176 1snn d1snnb_ B:16-22,27-35,39-51,163-176,179-186 1pvy d1pvyb_ B:16-22,27-35,39-51,163-176,179-186 1g58 d1g58a_ A:28-33,40-47,51-62,152-165,169-176 1pvw d1pvwa_ A:16-22,27-35,39-51,163-176,179-186 1pvy d1pvya_ A:16-22,27-35,39-51,163-176,179-186 1snn d1snna_ A:16-22,27-35,39-51,163-176,179-186 1g58 d1g58b_ B:28-33,40-47,51-62,152-165,169-176 1g57 d1g57a_ A:28-33,40-47,51-62,152-165,169-176 1pvw d1pvwb_ B:16-22,27-35,39-51,163-176,179-186 1jcu d1jcua_ A:27-34,35-43,45-57,124-134,135-141 1k4l d1k4la_ A:27-34,37-46,50-61,152-165,169-174 1tks d1tksb_ B:20-24,33-39,43-54,144-157,160-168 1tks d1tksa_ A:20-24,33-39,43-54,144-157,160-168 1tku d1tkub_ B:20-24,33-39,43-54,144-157,160-168 1tku d1tkua_ A:20-24,33-39,43-54,144-157,160-168 1k4p d1k4pa_ A:27-33,38-46,50-61,152-165,168-174 2ris d2risa1 A:20-24,33-39,43-54,144-157,160-168 2riu d2riua1 A:20-24,33-39,43-54,144-157,160-168 1k4i d1k4ia_ A:27-33,38-46,50-61,152-165,168-174 1k4o d1k4oa_ A:27-33,38-46,50-61,152-165,168-174 1k49 d1k49a_ A:27-34,37-46,50-61,152-165,168-174 1k7j d1k7ja_ A:29-35,36-43,46-58,126-137,139-145 1kk9 d1kk9a_ A:29-35,36-43,46-58,126-137,139-145 1hru d1hrub_ B:222-228,229-236,239-251,321-332,334-340 1hru d1hrua_ A:22-28,29-36,39-51,121-132,134-140