Chains and heterogens:
PDB Chain Sequences:
>1cg1A (A:) gnnvvvlgtqwgdegqgkivdllterakyvvryqgghnaghtlvingektvlhlipsgil renvtsiigngvvlspaalmkemkeledrgipvrerlllseacplildyhvaldnareka rgakaigttgrgigpayedkvarrglrvgdlfdketfaeklkevmeyhnfqlvnyykaea vdyqkvlddtmavadiltsmvvdvsdlldqarqrgdfvmfegaqgtlldidhgtypyvts snttaggvatgsglgpryvdyvlgilkaystrvgagpfptelfdetgeflckqgnefgat tgrrrrtgwldtvavrravqlnslsgfcltkldvldglkevklcvayrmpdgrevtttpl aaddwkgvepiyetmpgwsestfgvkdrsglpqaalnyikrieeltgvpidiistgpdrt etmilrdpfda