Chains and heterogens:
PDB Chain Sequences:
>1l2bA (A:) pelpevetirrtllplivgktiedvrifwpniirhprdseafaarmigqtvrglerrgkf lkflldrdalishlrmegryavasaleplephthvvfcftdgselryrdvrkfgtmhvya keeadrrpplaelgpeplspafspavlaeravktkrsvkallldqtvvagfgniyvdesl fragilpgrpaaslsskeierlheemvatigeavmkggstvrtyvntqgeagtfqhhlyv ygrqgnpckrcgtpiektvvagrgthycprcqr
>1l2bA (A:) pelpevetirrtllplivgktiedvrifwpniirhprdseafaarmigqtvrglerrgkf lkflldrdalishlrmegryavasaleplephthvvfcftdgselryrdvrkfgtmhvya keeadrrpplaelgpeplspafspavlaeravktkrsvkallldqtvvagfgniyvdesl fragilpgrpaaslsskeierlheemvatigeavmkggstvrgtfqhhlyvygrqgnpck rcgtpiektvvagrgthycprcqr