Chains and heterogens:
PDB Chain Sequences:
>16pkA (A:) ekksinecdlkgkkvlirvdfnvpvkngkitndyrirsalptlkkvlteggscvlmshlg rpkgipmaqagkirstggvpgfqqkatlkpvakrlselllrpvtfapdclnaadvvskms pgdvvllenvrfykeegskkakdreamakilasygdvyisdafgtahrdsatmtgipkil gngaagylmekeisyfakvlgnpprplvaivggakvsdkiqlldnmlqridylliggama ytflkaqgysigkskceesklefarsllkkaedrkvqvilpidhvchtefkavdsplite dqnipeghmaldigpktiekyvqtigkcksaiwngpmgvfemvpyskgtfaiakamgrgt hehglmsiigggdsasaaelsgeakrmshvstgggaslellegktlpgvtvlddk