Chains and heterogens:
PDB Chain Sequences:
>1gwz_ (-) feslqkqevknlhqrlegqrpenkgknryknilpfdhsrvilqgrdsnipgsdyinanyi knqllgpdenaktyiasqgcleatvndfwqmawqensrvivmttrevekgrnkcvpywpe vgmqraygpysvtncgehdtteyklrtlqvspldngdlireiwhyqylswpdhgvpsepg gvlsfldqinqrqeslphagpiivhcsagigrtgtiividmlmenistkgldcdidiqkt iqmvraqrsgmvqteaqykfiyvaiaqfiettkkklevlqsqk
>1gwz_ (-) feslqkqevknlhqrlegqrpenkgknryknilpfdhsrvilqgrdsnipgsdyinanyi knqllgpdenaktyiasqgcleatvndfwqmawqensrvivmttrevekgrnkcvpywpe vgmqraygpysvtncgehdtteyklrtlqvspgdlireiwhyqylswpdhgvpsepggvl sfldqinqrqeslphagpiivhcsagigrtgtiividmlmenistkgldcdidiqktiqm vraqrsgmvqteaqykfiyvaiaqfiettkkklevlqsqk