Chains and heterogens:
PDB Chain Sequences:
>6s3gA (A:) srandapivllhgftgwgreemfgfkywggvrgdieqwlndngyrtytlavgplssnwdr aceayaqlvggtvdygaahaakhgharfgrtypgllpelkrggrihiiahsqggqtarml vsllengsqeereyakahnvslsplfegghhfvlsvttiatphdgttlvnmvdftdrffd lqkcvlkaaavasnvpytsqvydfkldqwglrrqpgesfdqyferlkrspvwtstdtary dlsvpgaeklnqwvkaspntyylsfatertyrgaltgnyypelgmnacsavvcapflgsy rnatlgiddrwlendgivnafsmngpkrgstdrivpydgtikkgvwndmgtynvdhlevi gvdpnplfdirafylrlaeqlaslqphhhhhh