Chains and heterogens:
PDB Chain Sequences:
>5n3yE (E:) itgtstvgvgrgvlgdqkninttystyyylqdntrgngiftydakyrttlpgslwadadn qffasydapavdahyyagvtydyyknvhnrlsydgnnaairssvhysqgynnafwngsqm vygdgdgqtfiplsggidvvahelthavtdytagliyqnesgaineaisdifgtlvefya nknpdweigedvytpgisgdslrsmsdpakygdpdhyskrytgtqdnggvhinsgiinka aylisqggthygvsvvgigrdklgkifyraltqyltptsnfsqlraaavqsatdlygsts qevasvkqafdavgvk