Chains and heterogens:
PDB Chain Sequences:
>3knaA (A:) glivdtrdveervhvmrktklaptvahgvfnpefgpaalsnkdprlnegvvldevifskh kgdtkmsaedkalfrrcaadyasrlhsvlgtanaplsiyeaikgvdgldamepdtapglp walqgkrrgalidfengtvgpeveaalklmekreykfacqtflkdeirpmekvragktri vdvlpvehilytrmmigrfcaqmhsnngpqigsavgcnpdvdwqrfgthfaqyrnvwdvd ysafdanhcsdamnimfeevfrtefgfhpnaewilktlvntehayenkritveggipsgc satsiintilnniyvlyalrrhyegveldtytmisygddivvasdydldfealkphfksl gqtitpadksdkgfvlghsitdvtflkrhfhmdygtgfykpvmasktleailsfarrgti qeklisvaglavhsgpdeyrrlfepfqglfeipsyrslylrwvnavcgdaaalehh