Chains and heterogens:
PDB Chain Sequences:
>4e42A (A:) iqveqsppdlilqeganstlrcnfsdsvnnlqwfhqnpwgqlinlfyipsgtkqngrlsa ttvaterysllyisssqttdsgvyfcavdrgstlgrlyfgrgtqltvwpdiqkpdpavyq lrdskssdksvclftdfdsqtnvsqskdsdvyitdkcvldmrsmdfksnsavawsnksdf acanafnnsiipedtffpspess
>4e42A (A:) iqveqsppdlilqeganstlrcnfsdsvnnlqwfhqnpwgqlinlfyipsgtkqngrlsa ttvaterysllyisssqttdsgvyfcavdgrlyfgrgtqltvwpdiqkpdpavyqlrdsv clftdfdsqtnvsqskdsdvyitdkcvldmrsmdfksnsavawsnksdfacanafnnsii pedtffp
>4e42B (B:) gvtqspthliktrgqqatlrcspisghtsvywyqqalglglqfllwydegeernrgnfpp rfsgrqfpnysselnvnaleledsalylcassqiretqyfgpgtrllvledlknvfppev avfepseaeishtqkatlvclatgfypdhvelswwvngkevhsgvctdpqplkeqpalnd sryalssrlrvsatfwqnprnhfrcqvqfyglsendewtqdrakpvtqivsaeawgrad
>4e42B (B:) vtqspthliktrgqqatlrcspisghtsvywyqqalglglqfllwydegeernrgnfppr fsgrqfpnysselnvnaleledsalylcassetqyfgpgtrllvledlknvfppevavfe pseaeishtqkatlvclatgfypdhvelswwvngkevhsgvctdpqplkeqpasryalss rlrvsatfwqnprnhfrcqvqfyglsendewtqdrakpvtqivsaeawgra
>4e42C (C:) iqveqsppdlilqeganstlrcnfsdsvnnlqwfhqnpwgqlinlfyipsgtkqngrlsa ttvaterysllyisssqttdsgvyfcavdrgstlgrlyfgrgtqltvwpdiqkpdpavyq lrdskssdksvclftdfdsqtnvsqskdsdvyitdkcvldmrsmdfksnsavawsnksdf acanafnnsiipedtffpspess
>4e42C (C:) iqveqsppdlilqeganstlrcnfsdsvnnlqwfhqnpwgqlinlfyipsgtkqngrlsa ttvaterysllyisssqttdsgvyfcavdrlyfgrgtqltvwpdiqkpdpavyqlrsvcl ftdfdsqtnvsqskdsdvyitdkcvldmrsmdfksnsavawsnfacanafnnsiipedtf fp
>4e42D (D:) gvtqspthliktrgqqatlrcspisghtsvywyqqalglglqfllwydegeernrgnfpp rfsgrqfpnysselnvnaleledsalylcassqiretqyfgpgtrllvledlknvfppev avfepseaeishtqkatlvclatgfypdhvelswwvngkevhsgvctdpqplkeqpalnd sryalssrlrvsatfwqnprnhfrcqvqfyglsendewtqdrakpvtqivsaeawgrad
>4e42D (D:) vtqspthliktrgqqatlrcspisghtsvywyqqalglglqfllwydegeernrgnfppr fsgrqfpnysselnvnaleledsalylcassetqyfgpgtrllvledlknvfppevavfe pseaeishtqkatlvclatgfypdhvelswwvngkevhsgvctdpqplkeqsryalssrl rvsatfwqnprnhfrcqvqfyglsendewtqdrakpvtqivsaeawgra