Chains and heterogens:
PDB Chain Sequences:
>3l2lA (A:) eyapqtqsgrtsivhlfewrwvdialecerylgpkgfggvqvsppnenivvtnpsrpwwe ryqpvsyklctrsgnenefrdmvtrcnnvgvriyvdavinhmcgsgaaagtgttcgsycn pgnrefpavpysawdfndgkcktasggiesyndpyqvrdcqlvglldlalekdyvrsmia dylnklidigvagfridaskhmwpgdikavldklhnlntnwfpagsrpfifqevidlgge aiqsseyfgngrvtefkygaklgtvvrkwsgekmsylknwgegwgfmpsdralvfvdnhd nqrghgaggasiltfwdarlykvavgfmlahpygftrvmssyrwarnfvngqdvndwigp pnnngvikevtinadttcgndwvcehrwrqirnmvwfrnvvdgqpfanwwdngsnqvafg rgnrgfivfnnddwqlsstlqtglpggtycdvisgdkvgnsctgikvyvssdgtaqfsis nsaedpfiaihaeskl